When running firmware 3.3.004-74-gbd4e7196 on my Nissan Leaf I suspect (but can't be 100% sure as it's only been 24h without fault) the new poller caused the car to throw the attached faults from overloading the can bus whilst driving. The fault was sufficient to send the car into limp mode and could not be driven until cleared with LeafSpy.
Hi Michael
I just used the firmware stock with no changes to the poller settings.
The Leaf is using high speeds on both buses:RegisterCanBus(1,CAN_MODE_ACTIVE,CAN_SPEED_500KBPS);RegisterCanBus(2,CAN_MODE_ACTIVE,CAN_SPEED_500KBPS);
On Sun, 19 Jan 2025, 10:15 pm Michael Balzer via OvmsDev, <ovmsdev@lists.openvehicles.com> wrote:
Michael,
I suggest adding a standard bool member variable to reflect if any filter is defined, so `PollerRxCallback()` can just skip the filter test while that is false. A mutex has some overhead, even if used non-blocking, and a bool variable only read there will be sufficient to signal "apply filtering" to the callback. With the simple bool test, all vehicles that don't need filtering (i.e. most vehicles) will have a neglectible impact from this.
Regarding the overhead: the GCC atomic implementation should use the xtensa CPU builtin atomic support (SCOMPARE1 register & S32C1I instruction), so should be pretty fast and not use any interrupt disabling, see:
So I still doubt the queue overflow is the real culprit.
- https://gcc.gnu.org/wiki/Atomic (xtensa atomic support since gcc 4.4.0)
- https://www.cadence.com/content/dam/cadence-www/global/en_US/documents/tools/silicon-solutions/compute-ip/isa-summary.pdf (section 4.3.13)
But having the filter option doesn't hurt (with my suggestion above), and your changes to the queue processing look promising as well.
@Derek: what was your poller tracing & timing setup when you had the bus issue on the Leaf? I still think that was something related to your car or setup. There are currently 11 Leafs on my server running "edge" releases including the new poller, all without (reported) issues.
Regards,
Michael
Am 19.01.25 um 04:26 schrieb Michael Geddes:
P/R CreatedLet me know if you want me to split it up or ANY changes and I'll get onto it asap.
Maybe somebody could grab the code and check it out in the context of specifying some filters. This will prevent those messages from coming to the vehicle implementation at all.. and even from going through the poller queue. It is non-blocking meaning that the filter is briefly inopperational while the filter is being modified.//.
On Sun, 19 Jan 2025 at 11:02, Michael Geddes <frog@bunyip.wheelycreek.net> wrote:
On Sat, 18 Jan 2025 at 17:08, Michael Balzer via OvmsDev <ovmsdev@lists.openvehicles.com> wrote:
I have commented out the line with the Atomic_Increment statement. Now I no longer receive any messages with “RX Task Queue Overflow Run”
Here is the output of poller times status:
The main question is if you still get the CAN bus crash (vehicle running into issues) with that modification in active mode. Timing statistics were not expected to change.
I have a feeling that the atomic operations are along the lines of:
* Set Interrupts off* atomic operation* Set interrupts on
Which means no real 'blocking' .. just not allowing interrupts and therefor task switching for a couple of instructions.
Nearly 2800 frames per second is quite a lot, and most is on can1 with many frame periods at 20 ms. Yet the total processing time averages at 30-40 ms, so there is no actual CPU capacity issue for that amount of frames.
@Derek: can you please supply these statistics for the Leaf in drive mode as well?
Am 18.01.25 um 02:42 schrieb Michael Geddes via OvmsDev:
Maybe try setting CONFIG_OVMS_VEHICLE_CAN_RX_QUEUE_SIZE = 160 and see if that reduces the overflow?
Simons car sends at least 91 process data frame IDs on can1 and 84 on can2. Worst case would be these come all in within the shortest possible time span, that would mean the queue needs to be able to hold 175 frames. I'd add some headroom and round up to 200.
But keep in mind, if the Incoming processing actually occasionally gets blocked for up to 60 ms -- as indicated by Simons statistics --, the queue may need to be twice as large.
Am 18.01.25 um 02:42 schrieb Michael Geddes via OvmsDev:
I was thinking that the frame filter would be here:void OvmsPollers::PollerRxCallback(const CAN_frame_t* frame, bool success)
{Queue_PollerFrame(*frame, success, false);
}
which I guess is executed in the task handling the CAN queue. (we don't know how many frames get dropped there).
Actually we do know that, or at least have some indication, as we count the CAN transceiver queue overruns. That info is included as "Rx overflw" in the can status output & as "rxovr" in the logs.
Adding a filter before queueing the frame would exclude the filtered IDs from all vehicle processing. I meant adding a filter just to exclude IDs from the timing statistics, assuming those are the culprits, as Simon wrote the issue only appears after enabling the timing statistics and printing them. That's why I asked if printing might need to lock the statistics for too long in case of such a long list.
Completely blocking ID ranges from processing by the vehicle should normally not be necessary, unless the Incoming handler is written very poorly.
Yet, if we add that, a mutex in the CAN RX callback must be avoided, or would need to be non-blocking:
The only real concern is thread safety between checking and adding to the filter - so the check itself might have to be mutexed.void OvmsPollers::PollerRxCallback(const CAN_frame_t* frame, bool success)
{// Check filter{OvmsRecMutexLock lock(&m_filter_mutex);
if (! m_filter->IsFiltered(frame))return;}
Queue_PollerFrame(*frame, success, false);
}
A mutex like that could block the CAN task, which must be avoided at all cost. I introduced CAN callbacks for vehicles & applications that need to react to certain frames as fast as possible, e.g. to maintain control precedence, so cannot use the standard CAN listener mechanism (frame queueing).
The current poller callback use is OK, if (!) the atomic type really isn't the culprit, ie doesn't block.
So if (!) an ID filter needs to be added before queueing, it needs to be done in a way that needs no mutex. But I don't see an issue with the vehicle passing a fixed filter when registering with the poller/buses. The filter doesn't need to by mutable on the fly.
Regards,
Michael
Am 17.01.25 um 19:42 schrieb Simon Ehlen via OvmsDev:
The poller statistics can help you track this down, but you need to have at least 10 seconds of statistics, the more the better. Rule of thumb: PRI average at 0.0/second means you don't have enough data yet.
There were again many messages with “RX Task Queue Overflow Run”.
Here are the statistics of poller times status:
OVMS# poll times status
Poller timing is: on
Type | count | Utlztn | Time
| per s | [%] | [ms]
---------------+--------+--------+---------
Poll:PRI Avg| 1.00| 0.0043| 0.004
Peak| | 0.0043| 0.052
---------------+--------+--------+---------
RxCan1[010] Avg| 34.26| 1.6741| 0.015
Peak| | 1.6741| 1.182
---------------+--------+--------+---------
RxCan1[030] Avg| 34.06| 1.7085| 0.020
Peak| | 1.7085| 1.390
---------------+--------+--------+---------
RxCan1[041] Avg| 49.89| 0.8109| 0.016
Peak| | 0.8541| 1.098
---------------+--------+--------+---------
RxCan1[049] Avg| 50.00| 1.5970| 0.019
Peak| | 1.7154| 32.233
---------------+--------+--------+---------
RxCan1[04c] Avg| 49.92| 0.8340| 0.014
Peak| | 0.8933| 1.995
---------------+--------+--------+---------
RxCan1[04d] Avg| 34.43| 1.6211| 0.014
Peak| | 1.6756| 1.318
---------------+--------+--------+---------
RxCan1[076] Avg| 50.00| 0.8362| 0.024
Peak| | 0.8784| 2.185
---------------+--------+--------+---------
RxCan1[077] Avg| 50.00| 0.7837| 0.014
Peak| | 0.8083| 1.156
---------------+--------+--------+---------
RxCan1[07a] Avg| 34.31| 2.1870| 0.017
Peak| | 2.3252| 1.888
---------------+--------+--------+---------
RxCan1[07d] Avg| 50.00| 0.8001| 0.013
Peak| | 0.8434| 1.150
---------------+--------+--------+---------
RxCan1[0c8] Avg| 49.96| 0.8359| 0.013
Peak| | 0.8715| 1.171
---------------+--------+--------+---------
RxCan1[11a] Avg| 34.35| 1.6701| 0.020
Peak| | 1.6981| 1.273
---------------+--------+--------+---------
RxCan1[130] Avg| 50.00| 0.7902| 0.018
Peak| | 0.8513| 0.980
---------------+--------+--------+---------
RxCan1[139] Avg| 49.92| 0.7872| 0.013
Peak| | 0.8219| 0.795
---------------+--------+--------+---------
RxCan1[156] Avg| 10.00| 0.1620| 0.014
Peak| | 0.1729| 0.919
---------------+--------+--------+---------
RxCan1[160] Avg| 50.04| 0.7977| 0.014
Peak| | 0.8232| 1.495
---------------+--------+--------+---------
RxCan1[165] Avg| 49.85| 0.7976| 0.014
Peak| | 0.8486| 1.015
---------------+--------+--------+---------
RxCan1[167] Avg| 34.39| 1.6025| 0.016
Peak| | 1.6888| 1.354
---------------+--------+--------+---------
RxCan1[171] Avg| 50.00| 0.8150| 0.017
Peak| | 0.8488| 1.091
---------------+--------+--------+---------
RxCan1[178] Avg| 10.00| 0.1614| 0.014
Peak| | 0.1702| 0.903
---------------+--------+--------+---------
RxCan1[179] Avg| 10.00| 0.1630| 0.017
Peak| | 0.1663| 1.336
---------------+--------+--------+---------
RxCan1[180] Avg| 50.00| 0.8137| 0.014
Peak| | 0.8605| 1.566
---------------+--------+--------+---------
RxCan1[185] Avg| 50.04| 0.8033| 0.013
Peak| | 0.8393| 1.126
---------------+--------+--------+---------
RxCan1[1a0] Avg| 49.92| 0.7748| 0.013
Peak| | 0.8169| 1.184
---------------+--------+--------+---------
RxCan1[1e0] Avg| 49.92| 0.7738| 0.014
Peak| | 0.8028| 1.049
---------------+--------+--------+---------
RxCan1[1e4] Avg| 49.89| 0.9692| 0.018
Peak| | 1.0096| 1.332
---------------+--------+--------+---------
RxCan1[1f0] Avg| 33.22| 0.5544| 0.014
Peak| | 0.5855| 0.848
---------------+--------+--------+---------
RxCan1[200] Avg| 49.92| 0.7879| 0.015
Peak| | 0.8345| 1.206
---------------+--------+--------+---------
RxCan1[202] Avg| 34.28| 1.7075| 0.016
Peak| | 1.7874| 1.218
---------------+--------+--------+---------
RxCan1[204] Avg| 34.35| 1.5641| 0.013
Peak| | 1.6427| 1.235
---------------+--------+--------+---------
RxCan1[213] Avg| 49.89| 0.7814| 0.015
Peak| | 0.8232| 0.910
---------------+--------+--------+---------
RxCan1[214] Avg| 49.92| 0.7736| 0.014
Peak| | 0.8216| 0.800
---------------+--------+--------+---------
RxCan1[217] Avg| 34.31| 1.6294| 0.014
Peak| | 1.7165| 1.153
---------------+--------+--------+---------
RxCan1[218] Avg| 49.86| 0.7877| 0.013
Peak| | 0.8290| 1.068
---------------+--------+--------+---------
RxCan1[230] Avg| 50.00| 0.7596| 0.014
Peak| | 0.7660| 1.021
---------------+--------+--------+---------
RxCan1[240] Avg| 10.00| 0.1669| 0.013
Peak| | 0.1835| 0.887
---------------+--------+--------+---------
RxCan1[242] Avg| 24.96| 0.4764| 0.020
Peak| | 0.4963| 1.501
---------------+--------+--------+---------
RxCan1[24a] Avg| 9.89| 0.1789| 0.015
Peak| | 0.2009| 0.874
---------------+--------+--------+---------
RxCan1[24b] Avg| 9.89| 0.1702| 0.014
Peak| | 0.1870| 1.195
---------------+--------+--------+---------
RxCan1[24c] Avg| 9.89| 0.2146| 0.019
Peak| | 0.2187| 1.242
---------------+--------+--------+---------
RxCan1[25a] Avg| 10.00| 0.1603| 0.013
Peak| | 0.1667| 0.720
---------------+--------+--------+---------
RxCan1[25b] Avg| 49.94| 0.7918| 0.017
Peak| | 0.8454| 1.666
---------------+--------+--------+---------
RxCan1[25c] Avg| 34.24| 1.5331| 0.013
Peak| | 1.5997| 1.538
---------------+--------+--------+---------
RxCan1[260] Avg| 10.00| 0.1626| 0.014
Peak| | 0.1682| 0.718
---------------+--------+--------+---------
RxCan1[270] Avg| 49.90| 0.8120| 0.014
Peak| | 0.8460| 1.671
---------------+--------+--------+---------
RxCan1[280] Avg| 49.92| 0.7777| 0.019
Peak| | 0.8447| 1.157
---------------+--------+--------+---------
RxCan1[2e4] Avg| 19.89| 0.5778| 0.032
Peak| | 0.6648| 2.226
---------------+--------+--------+---------
RxCan1[2ec] Avg| 10.00| 0.1701| 0.014
Peak| | 0.1755| 0.928
---------------+--------+--------+---------
RxCan1[2ed] Avg| 10.00| 0.1650| 0.013
Peak| | 0.1747| 0.917
---------------+--------+--------+---------
RxCan1[2ee] Avg| 9.98| 0.1544| 0.013
Peak| | 0.1588| 1.312
---------------+--------+--------+---------
RxCan1[312] Avg| 10.00| 0.1648| 0.017
Peak| | 0.1690| 0.922
---------------+--------+--------+---------
RxCan1[326] Avg| 9.89| 0.1603| 0.015
Peak| | 0.1833| 1.230
---------------+--------+--------+---------
RxCan1[336] Avg| 1.00| 0.0146| 0.015
Peak| | 0.0150| 0.349
---------------+--------+--------+---------
RxCan1[352] Avg| 6.66| 0.1223| 0.022
Peak| | 0.1338| 1.015
---------------+--------+--------+---------
RxCan1[355] Avg| 2.00| 0.0424| 0.019
Peak| | 0.0431| 0.786
---------------+--------+--------+---------
RxCan1[35e] Avg| 9.96| 0.1570| 0.013
Peak| | 0.1644| 0.579
---------------+--------+--------+---------
RxCan1[365] Avg| 10.00| 0.1600| 0.014
Peak| | 0.1653| 0.961
---------------+--------+--------+---------
RxCan1[366] Avg| 10.00| 0.1716| 0.013
Peak| | 0.1890| 0.987
---------------+--------+--------+---------
RxCan1[367] Avg| 9.93| 0.1793| 0.015
Peak| | 0.1864| 0.984
---------------+--------+--------+---------
RxCan1[368] Avg| 10.00| 0.1645| 0.014
Peak| | 0.1778| 0.768
---------------+--------+--------+---------
RxCan1[369] Avg| 10.00| 0.1562| 0.016
Peak| | 0.1606| 0.724
---------------+--------+--------+---------
RxCan1[380] Avg| 10.00| 0.1619| 0.014
Peak| | 0.1644| 0.605
---------------+--------+--------+---------
RxCan1[38b] Avg| 25.00| 0.3991| 0.016
Peak| | 0.4280| 1.448
---------------+--------+--------+---------
RxCan1[3b3] Avg| 10.00| 0.1537| 0.013
Peak| | 0.1610| 0.380
---------------+--------+--------+---------
RxCan1[400] Avg| 4.00| 0.0626| 0.014
Peak| | 0.0626| 0.251
---------------+--------+--------+---------
RxCan1[405] Avg| 3.90| 0.1019| 0.028
Peak| | 0.1019| 0.781
---------------+--------+--------+---------
RxCan1[40a] Avg| 7.90| 0.1256| 0.020
Peak| | 0.1256| 0.991
---------------+--------+--------+---------
RxCan1[410] Avg| 10.00| 0.1643| 0.016
Peak| | 0.1839| 1.634
---------------+--------+--------+---------
RxCan1[411] Avg| 10.00| 0.1532| 0.013
Peak| | 0.1645| 0.824
---------------+--------+--------+---------
RxCan1[416] Avg| 10.00| 0.1516| 0.016
Peak| | 0.1582| 0.807
---------------+--------+--------+---------
RxCan1[421] Avg| 10.00| 0.1648| 0.013
Peak| | 0.1740| 0.839
---------------+--------+--------+---------
RxCan1[42d] Avg| 10.00| 0.1548| 0.014
Peak| | 0.1658| 0.741
---------------+--------+--------+---------
RxCan1[42f] Avg| 10.00| 0.1527| 0.013
Peak| | 0.1578| 0.667
---------------+--------+--------+---------
RxCan1[430] Avg| 10.00| 0.1730| 0.016
Peak| | 0.1880| 1.209
---------------+--------+--------+---------
RxCan1[434] Avg| 10.00| 0.1620| 0.021
Peak| | 0.1712| 1.140
---------------+--------+--------+---------
RxCan1[435] Avg| 6.66| 0.1104| 0.014
Peak| | 0.1121| 1.011
---------------+--------+--------+---------
RxCan1[43e] Avg| 20.00| 0.3194| 0.013
Peak| | 0.3434| 1.212
---------------+--------+--------+---------
RxCan1[440] Avg| 1.00| 0.0160| 0.014
Peak| | 0.0175| 0.315
---------------+--------+--------+---------
RxCan1[465] Avg| 1.00| 0.0172| 0.015
Peak| | 0.0194| 0.404
---------------+--------+--------+---------
RxCan1[466] Avg| 1.00| 0.0198| 0.015
Peak| | 0.0252| 0.890
---------------+--------+--------+---------
RxCan1[467] Avg| 1.00| 0.0152| 0.014
Peak| | 0.0160| 0.217
---------------+--------+--------+---------
RxCan1[472] Avg| 0.70| 0.0533| 0.075
Peak| | 0.0546| 0.990
---------------+--------+--------+---------
RxCan1[473] Avg| 0.65| 0.0325| 0.051
Peak| | 0.0361| 0.774
---------------+--------+--------+---------
RxCan1[474] Avg| 1.00| 0.0146| 0.014
Peak| | 0.0151| 0.189
---------------+--------+--------+---------
RxCan1[475] Avg| 2.00| 0.0332| 0.015
Peak| | 0.0362| 0.513
---------------+--------+--------+---------
RxCan1[476] Avg| 2.00| 0.0305| 0.014
Peak| | 0.0307| 0.249
---------------+--------+--------+---------
RxCan1[477] Avg| 2.00| 0.0309| 0.014
Peak| | 0.0311| 0.438
---------------+--------+--------+---------
RxCan1[595] Avg| 1.00| 0.0151| 0.014
Peak| | 0.0160| 0.230
---------------+--------+--------+---------
RxCan1[59e] Avg| 1.00| 0.0179| 0.015
Peak| | 0.0209| 0.716
---------------+--------+--------+---------
RxCan1[5a2] Avg| 1.00| 0.0154| 0.016
Peak| | 0.0184| 0.699
---------------+--------+--------+---------
RxCan1[5ba] Avg| 1.00| 0.0159| 0.017
Peak| | 0.0174| 0.485
---------------+--------+--------+---------
RxCan2[010] Avg| 0.00| 0.0000| 0.015
Peak| | 0.0000| 0.146
---------------+--------+--------+---------
RxCan2[020] Avg| 31.10| 0.5159| 0.015
Peak| | 0.5730| 0.992
---------------+--------+--------+---------
RxCan2[030] Avg| 20.70| 0.3506| 0.016
Peak| | 0.3956| 1.055
---------------+--------+--------+---------
RxCan2[03a] Avg| 18.65| 0.3157| 0.014
Peak| | 0.3292| 0.702
---------------+--------+--------+---------
RxCan2[040] Avg| 18.60| 0.3111| 0.015
Peak| | 0.3474| 0.953
---------------+--------+--------+---------
RxCan2[060] Avg| 18.60| 0.3182| 0.014
Peak| | 0.3569| 0.694
---------------+--------+--------+---------
RxCan2[070] Avg| 15.55| 0.4581| 0.017
Peak| | 0.6859| 39.212
---------------+--------+--------+---------
RxCan2[080] Avg| 15.50| 0.5041| 0.029
Peak| | 0.5414| 1.555
---------------+--------+--------+---------
RxCan2[083] Avg| 18.70| 0.3083| 0.014
Peak| | 0.3325| 0.557
---------------+--------+--------+---------
RxCan2[090] Avg| 23.40| 0.3961| 0.014
Peak| | 0.4445| 1.218
---------------+--------+--------+---------
RxCan2[0a0] Avg| 15.55| 0.2734| 0.014
Peak| | 0.3144| 1.062
---------------+--------+--------+---------
RxCan2[100] Avg| 15.50| 0.2645| 0.016
Peak| | 0.2875| 1.021
---------------+--------+--------+---------
RxCan2[108] Avg| 23.40| 0.4231| 0.016
Peak| | 0.4680| 1.297
---------------+--------+--------+---------
RxCan2[110] Avg| 15.55| 0.2467| 0.014
Peak| | 0.2684| 0.475
---------------+--------+--------+---------
RxCan2[130] Avg| 13.30| 0.2231| 0.014
Peak| | 0.2447| 0.512
---------------+--------+--------+---------
RxCan2[150] Avg| 15.50| 0.2533| 0.015
Peak| | 0.2836| 0.823
---------------+--------+--------+---------
RxCan2[160] Avg| 4.70| 0.0784| 0.014
Peak| | 0.0863| 0.608
---------------+--------+--------+---------
RxCan2[180] Avg| 15.55| 0.2713| 0.015
Peak| | 0.2841| 0.884
---------------+--------+--------+---------
RxCan2[190] Avg| 15.50| 0.2596| 0.014
Peak| | 0.2825| 0.743
---------------+--------+--------+---------
RxCan2[1a0] Avg| 0.95| 0.0164| 0.015
Peak| | 0.0164| 0.346
---------------+--------+--------+---------
RxCan2[1a4] Avg| 18.65| 0.3232| 0.015
Peak| | 0.3515| 0.989
---------------+--------+--------+---------
RxCan2[1a8] Avg| 11.60| 0.1911| 0.016
Peak| | 0.2012| 0.757
---------------+--------+--------+---------
RxCan2[1b0] Avg| 9.35| 0.1558| 0.016
Peak| | 0.1641| 0.795
---------------+--------+--------+---------
RxCan2[1b4] Avg| 9.35| 0.1543| 0.015
Peak| | 0.1617| 1.217
---------------+--------+--------+---------
RxCan2[1b8] Avg| 11.65| 0.2003| 0.014
Peak| | 0.2236| 1.549
---------------+--------+--------+---------
RxCan2[1c0] Avg| 9.40| 0.1532| 0.016
Peak| | 0.1673| 0.955
---------------+--------+--------+---------
RxCan2[1e0] Avg| 9.30| 0.1582| 0.015
Peak| | 0.1708| 0.661
---------------+--------+--------+---------
RxCan2[215] Avg| 7.80| 0.1409| 0.016
Peak| | 0.1531| 0.660
---------------+--------+--------+---------
RxCan2[217] Avg| 7.80| 0.1239| 0.014
Peak| | 0.1333| 0.520
---------------+--------+--------+---------
RxCan2[220] Avg| 6.20| 0.1041| 0.015
Peak| | 0.1094| 0.652
---------------+--------+--------+---------
RxCan2[225] Avg| 23.40| 0.4648| 0.015
Peak| | 0.4696| 4.288
---------------+--------+--------+---------
RxCan2[230] Avg| 6.20| 0.3120| 0.048
Peak| | 0.3377| 1.065
---------------+--------+--------+---------
RxCan2[240] Avg| 7.70| 0.1248| 0.014
Peak| | 0.1364| 0.635
---------------+--------+--------+---------
RxCan2[241] Avg| 18.60| 0.3258| 0.014
Peak| | 0.3343| 1.288
---------------+--------+--------+---------
RxCan2[250] Avg| 4.70| 0.0761| 0.014
Peak| | 0.0809| 0.322
---------------+--------+--------+---------
RxCan2[255] Avg| 11.75| 0.2058| 0.014
Peak| | 0.2283| 0.937
---------------+--------+--------+---------
RxCan2[265] Avg| 11.65| 0.1964| 0.014
Peak| | 0.2068| 0.965
---------------+--------+--------+---------
RxCan2[270] Avg| 4.70| 0.0808| 0.016
Peak| | 0.0949| 0.729
---------------+--------+--------+---------
RxCan2[290] Avg| 3.15| 0.0498| 0.015
Peak| | 0.0504| 0.449
---------------+--------+--------+---------
RxCan2[295] Avg| 6.25| 0.1019| 0.014
Peak| | 0.1094| 0.859
---------------+--------+--------+---------
RxCan2[2a0] Avg| 3.15| 0.0550| 0.014
Peak| | 0.0551| 0.779
---------------+--------+--------+---------
RxCan2[2a7] Avg| 11.65| 0.1929| 0.014
Peak| | 0.2080| 0.775
---------------+--------+--------+---------
RxCan2[2b0] Avg| 3.00| 0.0497| 0.015
Peak| | 0.0562| 0.528
---------------+--------+--------+---------
RxCan2[2c0] Avg| 3.10| 0.0534| 0.016
Peak| | 0.0592| 0.501
---------------+--------+--------+---------
RxCan2[2e0] Avg| 1.55| 0.0247| 0.014
Peak| | 0.0289| 0.319
---------------+--------+--------+---------
RxCan2[2f0] Avg| 1.55| 0.0244| 0.014
Peak| | 0.0273| 0.192
---------------+--------+--------+---------
RxCan2[2f5] Avg| 11.65| 0.2078| 0.016
Peak| | 0.2333| 0.879
---------------+--------+--------+---------
RxCan2[300] Avg| 1.60| 0.0266| 0.018
Peak| | 0.0278| 0.724
---------------+--------+--------+---------
RxCan2[310] Avg| 1.55| 0.0276| 0.016
Peak| | 0.0285| 0.759
---------------+--------+--------+---------
RxCan2[320] Avg| 1.60| 0.0240| 0.014
Peak| | 0.0258| 0.179
---------------+--------+--------+---------
RxCan2[326] Avg| 9.30| 0.1550| 0.014
Peak| | 0.1582| 0.850
---------------+--------+--------+---------
RxCan2[330] Avg| 29.95| 0.5311| 0.015
Peak| | 0.5565| 4.522
---------------+--------+--------+---------
RxCan2[340] Avg| 7.75| 0.1693| 0.024
Peak| | 0.1868| 1.148
---------------+--------+--------+---------
RxCan2[345] Avg| 1.60| 0.0292| 0.016
Peak| | 0.0316| 0.471
---------------+--------+--------+---------
RxCan2[350] Avg| 0.00| 0.0000| 0.019
Peak| | 0.0000| 0.188
---------------+--------+--------+---------
RxCan2[35e] Avg| 4.70| 0.0851| 0.019
Peak| | 0.0911| 1.023
---------------+--------+--------+---------
RxCan2[360] Avg| 1.60| 0.0258| 0.015
Peak| | 0.0284| 0.306
---------------+--------+--------+---------
RxCan2[361] Avg| 7.75| 0.1341| 0.017
Peak| | 0.1487| 0.761
---------------+--------+--------+---------
RxCan2[363] Avg| 1.20| 0.0203| 0.016
Peak| | 0.0220| 0.421
---------------+--------+--------+---------
RxCan2[370] Avg| 0.85| 0.0140| 0.016
Peak| | 0.0162| 0.354
---------------+--------+--------+---------
RxCan2[381] Avg| 3.15| 0.0512| 0.016
Peak| | 0.0546| 0.416
---------------+--------+--------+---------
RxCan2[3a0] Avg| 15.60| 0.2548| 0.015
Peak| | 0.2890| 0.976
---------------+--------+--------+---------
RxCan2[3d0] Avg| 9.35| 0.1553| 0.019
Peak| | 0.1612| 1.115
---------------+--------+--------+---------
RxCan2[3d5] Avg| 5.15| 0.0836| 0.016
Peak| | 0.0867| 0.479
---------------+--------+--------+---------
RxCan2[3e0] Avg| 0.00| 0.0000| 0.014
Peak| | 0.0000| 0.142
---------------+--------+--------+---------
RxCan2[400] Avg| 3.55| 0.0613| 0.017
Peak| | 0.0695| 0.501
---------------+--------+--------+---------
RxCan2[405] Avg| 3.50| 0.0584| 0.018
Peak| | 0.0626| 0.686
---------------+--------+--------+---------
RxCan2[40a] Avg| 7.10| 0.1278| 0.017
Peak| | 0.1389| 1.244
---------------+--------+--------+---------
RxCan2[415] Avg| 1.60| 0.0258| 0.014
Peak| | 0.0287| 0.266
---------------+--------+--------+---------
RxCan2[435] Avg| 0.85| 0.0165| 0.019
Peak| | 0.0167| 0.367
---------------+--------+--------+---------
RxCan2[440] Avg| 0.85| 0.0128| 0.019
Peak| | 0.0141| 0.885
---------------+--------+--------+---------
RxCan2[465] Avg| 0.95| 0.0177| 0.016
Peak| | 0.0195| 0.721
---------------+--------+--------+---------
RxCan2[466] Avg| 0.95| 0.0147| 0.014
Peak| | 0.0160| 0.184
---------------+--------+--------+---------
RxCan2[467] Avg| 0.95| 0.0172| 0.017
Peak| | 0.0188| 0.391
---------------+--------+--------+---------
RxCan2[501] Avg| 1.45| 0.0273| 0.016
Peak| | 0.0327| 0.996
---------------+--------+--------+---------
RxCan2[503] Avg| 1.45| 0.0288| 0.020
Peak| | 0.0338| 0.970
---------------+--------+--------+---------
RxCan2[504] Avg| 1.40| 0.0241| 0.015
Peak| | 0.0263| 0.609
---------------+--------+--------+---------
RxCan2[505] Avg| 1.40| 0.0255| 0.015
Peak| | 0.0296| 0.866
---------------+--------+--------+---------
RxCan2[508] Avg| 1.35| 0.0237| 0.017
Peak| | 0.0237| 0.384
---------------+--------+--------+---------
RxCan2[511] Avg| 1.35| 0.0226| 0.016
Peak| | 0.0228| 0.426
---------------+--------+--------+---------
RxCan2[51e] Avg| 1.40| 0.0221| 0.014
Peak| | 0.0245| 0.211
---------------+--------+--------+---------
RxCan2[581] Avg| 0.80| 0.0189| 0.019
Peak| | 0.0290| 1.217
---------------+--------+--------+---------
RxCan2[606] Avg| 0.00| 0.0000| 0.014
Peak| | 0.0000| 0.142
---------------+--------+--------+---------
RxCan2[657] Avg| 0.00| 0.0000| 0.014
Peak| | 0.0000| 0.137
---------------+--------+--------+---------
Cmd:State Avg| 0.00| 0.0000| 0.002
Peak| | 0.0000| 0.024
===============+========+========+=========
Total Avg| 2748.42| 58.3344| 28.718
@Simon: it would be an option to try commenting out the overflow counting, to see if that's causing the issue.
I have commented out the line with the Atomic_Increment statement. Now I no longer receive any messages with “RX Task Queue Overflow Run”
Here is the output of poller times status:
OVMS# poll time status
Poller timing is: on
Type | count | Utlztn | Time
| per s | [%] | [ms]
---------------+--------+--------+---------
Poll:PRI Avg| 1.00| 0.0045| 0.004
Peak| | 0.0046| 0.064
---------------+--------+--------+---------
RxCan1[010] Avg| 34.26| 2.2574| 0.021
Peak| | 2.2574| 4.609
---------------+--------+--------+---------
RxCan1[030] Avg| 34.26| 2.3820| 0.021
Peak| | 2.3820| 1.135
---------------+--------+--------+---------
RxCan1[041] Avg| 49.89| 1.2059| 0.021
Peak| | 1.2295| 5.331
---------------+--------+--------+---------
RxCan1[049] Avg| 49.96| 1.2400| 0.030
Peak| | 1.2699| 1.402
---------------+--------+--------+---------
RxCan1[04c] Avg| 49.92| 1.1752| 0.021
Peak| | 1.2072| 4.502
---------------+--------+--------+---------
RxCan1[04d] Avg| 34.31| 2.4433| 0.022
Peak| | 2.4773| 1.368
---------------+--------+--------+---------
RxCan1[076] Avg| 49.96| 1.2071| 0.024
Peak| | 1.2554| 2.007
---------------+--------+--------+---------
RxCan1[077] Avg| 49.96| 1.2012| 0.022
Peak| | 1.2492| 1.955
---------------+--------+--------+---------
RxCan1[07a] Avg| 34.35| 2.9251| 0.030
Peak| | 3.1103| 1.829
---------------+--------+--------+---------
RxCan1[07d] Avg| 49.96| 1.1954| 0.022
Peak| | 1.2282| 1.074
---------------+--------+--------+---------
RxCan1[0c8] Avg| 49.89| 1.2491| 0.021
Peak| | 1.3169| 1.181
---------------+--------+--------+---------
RxCan1[11a] Avg| 34.39| 2.4423| 0.024
Peak| | 2.5693| 1.491
---------------+--------+--------+---------
RxCan1[130] Avg| 49.95| 1.1312| 0.020
Peak| | 1.1684| 1.218
---------------+--------+--------+---------
RxCan1[139] Avg| 49.92| 1.1547| 0.021
Peak| | 1.1778| 1.199
---------------+--------+--------+---------
RxCan1[156] Avg| 9.96| 0.2391| 0.023
Peak| | 0.2591| 1.943
---------------+--------+--------+---------
RxCan1[160] Avg| 49.96| 1.1657| 0.031
Peak| | 1.2017| 2.158
---------------+--------+--------+---------
RxCan1[165] Avg| 49.96| 1.1257| 0.021
Peak| | 1.1652| 1.471
---------------+--------+--------+---------
RxCan1[167] Avg| 34.31| 2.2871| 0.021
Peak| | 2.3374| 1.776
---------------+--------+--------+---------
RxCan1[171] Avg| 49.96| 1.1879| 0.023
Peak| | 1.2268| 1.166
---------------+--------+--------+---------
RxCan1[178] Avg| 10.00| 0.2371| 0.029
Peak| | 0.2459| 1.516
---------------+--------+--------+---------
RxCan1[179] Avg| 10.00| 0.2196| 0.021
Peak| | 0.2260| 0.758
---------------+--------+--------+---------
RxCan1[180] Avg| 49.96| 1.1703| 0.022
Peak| | 1.2103| 1.481
---------------+--------+--------+---------
RxCan1[185] Avg| 49.95| 1.1127| 0.020
Peak| | 1.1636| 1.292
---------------+--------+--------+---------
RxCan1[1a0] Avg| 49.96| 1.1009| 0.020
Peak| | 1.1468| 1.060
---------------+--------+--------+---------
RxCan1[1e0] Avg| 49.96| 1.1744| 0.021
Peak| | 1.2027| 1.240
---------------+--------+--------+---------
RxCan1[1e4] Avg| 49.96| 1.3733| 0.032
Peak| | 1.4085| 1.523
---------------+--------+--------+---------
RxCan1[1f0] Avg| 33.30| 0.7625| 0.023
Peak| | 0.8004| 3.349
---------------+--------+--------+---------
RxCan1[200] Avg| 49.92| 1.1462| 0.021
Peak| | 1.1809| 1.254
---------------+--------+--------+---------
RxCan1[202] Avg| 34.39| 2.4034| 0.028
Peak| | 2.5611| 1.472
---------------+--------+--------+---------
RxCan1[204] Avg| 34.30| 2.2541| 0.022
Peak| | 2.2924| 2.015
---------------+--------+--------+---------
RxCan1[213] Avg| 49.96| 1.1599| 0.027
Peak| | 1.1794| 1.714
---------------+--------+--------+---------
RxCan1[214] Avg| 49.96| 1.1537| 0.022
Peak| | 1.1941| 1.439
---------------+--------+--------+---------
RxCan1[217] Avg| 34.39| 2.2490| 0.020
Peak| | 2.2856| 3.766
---------------+--------+--------+---------
RxCan1[218] Avg| 49.96| 1.1291| 0.021
Peak| | 1.1646| 1.547
---------------+--------+--------+---------
RxCan1[230] Avg| 49.96| 1.1272| 0.020
Peak| | 1.2237| 1.295
---------------+--------+--------+---------
RxCan1[240] Avg| 10.00| 0.2191| 0.021
Peak| | 0.2226| 1.067
---------------+--------+--------+---------
RxCan1[242] Avg| 24.96| 0.6911| 0.024
Peak| | 0.7161| 1.180
---------------+--------+--------+---------
RxCan1[24a] Avg| 9.96| 0.2345| 0.024
Peak| | 0.2535| 0.779
---------------+--------+--------+---------
RxCan1[24b] Avg| 9.96| 0.2433| 0.023
Peak| | 0.2697| 2.085
---------------+--------+--------+---------
RxCan1[24c] Avg| 9.96| 0.3103| 0.029
Peak| | 0.3203| 0.809
---------------+--------+--------+---------
RxCan1[25a] Avg| 10.00| 0.2346| 0.022
Peak| | 0.2405| 1.223
---------------+--------+--------+---------
RxCan1[25b] Avg| 49.89| 1.2121| 0.020
Peak| | 1.3659| 19.523
---------------+--------+--------+---------
RxCan1[25c] Avg| 34.31| 2.4193| 0.019
Peak| | 2.8022| 58.153
---------------+--------+--------+---------
RxCan1[260] Avg| 9.93| 0.2149| 0.024
Peak| | 0.2174| 1.096
---------------+--------+--------+---------
RxCan1[270] Avg| 49.96| 1.2042| 0.026
Peak| | 1.2755| 20.612
---------------+--------+--------+---------
RxCan1[280] Avg| 49.96| 1.0922| 0.020
Peak| | 1.1312| 1.266
---------------+--------+--------+---------
RxCan1[2e4] Avg| 19.96| 0.6942| 0.044
Peak| | 0.8604| 1.533
---------------+--------+--------+---------
RxCan1[2ec] Avg| 10.00| 0.3727| 0.025
Peak| | 0.5154| 28.819
---------------+--------+--------+---------
RxCan1[2ed] Avg| 10.00| 0.2298| 0.023
Peak| | 0.2378| 1.345
---------------+--------+--------+---------
RxCan1[2ee] Avg| 9.96| 0.2172| 0.019
Peak| | 0.2210| 1.058
---------------+--------+--------+---------
RxCan1[312] Avg| 10.00| 0.2206| 0.020
Peak| | 0.2396| 1.060
---------------+--------+--------+---------
RxCan1[326] Avg| 9.96| 0.2099| 0.020
Peak| | 0.2158| 0.507
---------------+--------+--------+---------
RxCan1[336] Avg| 1.00| 0.0212| 0.020
Peak| | 0.0233| 0.315
---------------+--------+--------+---------
RxCan1[352] Avg| 6.64| 0.1675| 0.024
Peak| | 0.1818| 1.048
---------------+--------+--------+---------
RxCan1[355] Avg| 2.00| 0.0540| 0.027
Peak| | 0.0619| 1.209
---------------+--------+--------+---------
RxCan1[35e] Avg| 9.98| 0.2221| 0.021
Peak| | 0.2284| 1.186
---------------+--------+--------+---------
RxCan1[365] Avg| 10.00| 0.2282| 0.023
Peak| | 0.2335| 0.769
---------------+--------+--------+---------
RxCan1[366] Avg| 10.00| 0.3163| 0.022
Peak| | 0.6330| 23.587
---------------+--------+--------+---------
RxCan1[367] Avg| 10.00| 0.2417| 0.021
Peak| | 0.2568| 1.417
---------------+--------+--------+---------
RxCan1[368] Avg| 9.96| 0.2187| 0.019
Peak| | 0.2250| 1.135
---------------+--------+--------+---------
RxCan1[369] Avg| 9.99| 0.2277| 0.021
Peak| | 0.2334| 0.667
---------------+--------+--------+---------
RxCan1[380] Avg| 9.96| 0.2133| 0.020
Peak| | 0.2161| 0.560
---------------+--------+--------+---------
RxCan1[38b] Avg| 24.92| 0.5622| 0.022
Peak| | 0.5716| 1.618
---------------+--------+--------+---------
RxCan1[3b3] Avg| 10.00| 0.2132| 0.023
Peak| | 0.2194| 1.106
---------------+--------+--------+---------
RxCan1[400] Avg| 4.00| 0.0885| 0.019
Peak| | 0.0885| 0.570
---------------+--------+--------+---------
RxCan1[405] Avg| 3.70| 0.1414| 0.036
Peak| | 0.1414| 0.710
---------------+--------+--------+---------
RxCan1[40a] Avg| 8.00| 0.1887| 0.021
Peak| | 0.1887| 1.027
---------------+--------+--------+---------
RxCan1[410] Avg| 10.00| 0.2141| 0.023
Peak| | 0.2188| 0.984
---------------+--------+--------+---------
RxCan1[411] Avg| 10.00| 0.2325| 0.023
Peak| | 0.2447| 0.660
---------------+--------+--------+---------
RxCan1[416] Avg| 10.00| 0.2326| 0.022
Peak| | 0.2389| 0.774
---------------+--------+--------+---------
RxCan1[421] Avg| 10.00| 0.2245| 0.021
Peak| | 0.2271| 1.160
---------------+--------+--------+---------
RxCan1[42d] Avg| 10.00| 0.2315| 0.021
Peak| | 0.2411| 0.677
---------------+--------+--------+---------
RxCan1[42f] Avg| 10.00| 0.2480| 0.020
Peak| | 0.2975| 8.093
---------------+--------+--------+---------
RxCan1[430] Avg| 10.00| 0.2203| 0.019
Peak| | 0.2302| 0.847
---------------+--------+--------+---------
RxCan1[434] Avg| 10.00| 0.2331| 0.019
Peak| | 0.2620| 1.150
---------------+--------+--------+---------
RxCan1[435] Avg| 6.68| 0.1445| 0.020
Peak| | 0.1486| 1.063
---------------+--------+--------+---------
RxCan1[43e] Avg| 20.00| 0.4515| 0.021
Peak| | 0.4632| 1.013
---------------+--------+--------+---------
RxCan1[440] Avg| 1.00| 0.0210| 0.019
Peak| | 0.0218| 0.294
---------------+--------+--------+---------
RxCan1[465] Avg| 0.95| 0.0214| 0.023
Peak| | 0.0215| 0.587
---------------+--------+--------+---------
RxCan1[466] Avg| 0.95| 0.0211| 0.021
Peak| | 0.0215| 0.350
---------------+--------+--------+---------
RxCan1[467] Avg| 0.95| 0.0191| 0.020
Peak| | 0.0201| 0.444
---------------+--------+--------+---------
RxCan1[472] Avg| 0.68| 0.0588| 0.085
Peak| | 0.0606| 1.170
---------------+--------+--------+---------
RxCan1[473] Avg| 0.66| 0.0407| 0.062
Peak| | 0.0492| 1.329
---------------+--------+--------+---------
RxCan1[474] Avg| 1.00| 0.0218| 0.021
Peak| | 0.0237| 0.278
---------------+--------+--------+---------
RxCan1[475] Avg| 1.96| 0.0466| 0.024
Peak| | 0.0570| 1.112
---------------+--------+--------+---------
RxCan1[476] Avg| 2.00| 0.0454| 0.020
Peak| | 0.0497| 0.409
---------------+--------+--------+---------
RxCan1[477] Avg| 2.00| 0.0497| 0.022
Peak| | 0.0595| 0.864
---------------+--------+--------+---------
RxCan1[595] Avg| 1.00| 0.0223| 0.021
Peak| | 0.0241| 0.296
---------------+--------+--------+---------
RxCan1[59e] Avg| 1.00| 0.0233| 0.024
Peak| | 0.0289| 0.713
---------------+--------+--------+---------
RxCan1[5a2] Avg| 1.00| 0.0200| 0.020
Peak| | 0.0204| 0.264
---------------+--------+--------+---------
RxCan1[5ba] Avg| 1.00| 0.0206| 0.021
Peak| | 0.0238| 0.515
---------------+--------+--------+---------
RxCan2[020] Avg| 33.30| 0.7938| 0.022
Peak| | 0.7938| 4.793
---------------+--------+--------+---------
RxCan2[030] Avg| 22.20| 0.5229| 0.022
Peak| | 0.5229| 0.985
---------------+--------+--------+---------
RxCan2[03a] Avg| 19.90| 0.4700| 0.022
Peak| | 0.4700| 0.804
---------------+--------+--------+---------
RxCan2[040] Avg| 19.90| 0.4678| 0.023
Peak| | 0.4678| 1.222
---------------+--------+--------+---------
RxCan2[060] Avg| 20.00| 0.6480| 0.050
Peak| | 0.6480| 20.997
---------------+--------+--------+---------
RxCan2[070] Avg| 16.60| 0.3944| 0.022
Peak| | 0.3944| 1.053
---------------+--------+--------+---------
RxCan2[080] Avg| 16.70| 0.7032| 0.041
Peak| | 0.7032| 1.611
---------------+--------+--------+---------
RxCan2[083] Avg| 20.10| 0.4329| 0.021
Peak| | 0.4329| 0.520
---------------+--------+--------+---------
RxCan2[090] Avg| 24.90| 0.5674| 0.017
Peak| | 0.5674| 1.149
---------------+--------+--------+---------
RxCan2[0a0] Avg| 16.60| 0.3836| 0.023
Peak| | 0.3836| 0.933
---------------+--------+--------+---------
RxCan2[100] Avg| 16.50| 0.3661| 0.021
Peak| | 0.3661| 0.740
---------------+--------+--------+---------
RxCan2[108] Avg| 24.90| 0.5923| 0.025
Peak| | 0.5923| 0.859
---------------+--------+--------+---------
RxCan2[110] Avg| 16.70| 0.3906| 0.023
Peak| | 0.3906| 0.697
---------------+--------+--------+---------
RxCan2[130] Avg| 14.40| 0.3341| 0.022
Peak| | 0.3341| 0.829
---------------+--------+--------+---------
RxCan2[150] Avg| 16.50| 0.4025| 0.020
Peak| | 0.4025| 1.120
---------------+--------+--------+---------
RxCan2[160] Avg| 4.90| 0.1252| 0.025
Peak| | 0.1252| 0.502
---------------+--------+--------+---------
RxCan2[180] Avg| 16.60| 0.3899| 0.023
Peak| | 0.3899| 0.799
---------------+--------+--------+---------
RxCan2[190] Avg| 16.60| 0.3892| 0.025
Peak| | 0.3892| 1.172
---------------+--------+--------+---------
RxCan2[1a0] Avg| 1.00| 0.0281| 0.025
Peak| | 0.0281| 0.695
---------------+--------+--------+---------
RxCan2[1a4] Avg| 20.00| 0.4525| 0.022
Peak| | 0.4525| 1.231
---------------+--------+--------+---------
RxCan2[1a8] Avg| 12.50| 0.2886| 0.020
Peak| | 0.2886| 1.048
---------------+--------+--------+---------
RxCan2[1b0] Avg| 10.00| 0.2300| 0.023
Peak| | 0.2300| 0.579
---------------+--------+--------+---------
RxCan2[1b4] Avg| 10.00| 0.2334| 0.022
Peak| | 0.2334| 0.947
---------------+--------+--------+---------
RxCan2[1b8] Avg| 12.40| 0.2970| 0.023
Peak| | 0.2970| 0.909
---------------+--------+--------+---------
RxCan2[1c0] Avg| 10.00| 0.2257| 0.021
Peak| | 0.2257| 0.983
---------------+--------+--------+---------
RxCan2[1e0] Avg| 10.00| 0.2141| 0.023
Peak| | 0.2141| 0.556
---------------+--------+--------+---------
RxCan2[215] Avg| 8.30| 0.2047| 0.025
Peak| | 0.2047| 0.786
---------------+--------+--------+---------
RxCan2[217] Avg| 8.30| 0.2033| 0.022
Peak| | 0.2033| 1.135
---------------+--------+--------+---------
RxCan2[220] Avg| 6.70| 0.1647| 0.020
Peak| | 0.1647| 0.961
---------------+--------+--------+---------
RxCan2[225] Avg| 24.90| 0.6136| 0.026
Peak| | 0.6136| 1.018
---------------+--------+--------+---------
RxCan2[230] Avg| 6.70| 0.4045| 0.057
Peak| | 0.4045| 1.532
---------------+--------+--------+---------
RxCan2[240] Avg| 8.20| 0.1849| 0.021
Peak| | 0.1849| 0.510
---------------+--------+--------+---------
RxCan2[241] Avg| 20.00| 0.4312| 0.021
Peak| | 0.4312| 5.110
---------------+--------+--------+---------
RxCan2[250] Avg| 5.00| 0.1072| 0.021
Peak| | 0.1072| 0.320
---------------+--------+--------+---------
RxCan2[255] Avg| 12.50| 0.3091| 0.022
Peak| | 0.3091| 0.904
---------------+--------+--------+---------
RxCan2[265] Avg| 12.50| 0.2819| 0.021
Peak| | 0.2819| 1.035
---------------+--------+--------+---------
RxCan2[270] Avg| 5.00| 0.1189| 0.022
Peak| | 0.1189| 0.631
---------------+--------+--------+---------
RxCan2[290] Avg| 3.30| 0.0740| 0.023
Peak| | 0.0740| 0.455
---------------+--------+--------+---------
RxCan2[295] Avg| 6.60| 0.1431| 0.023
Peak| | 0.1431| 0.504
---------------+--------+--------+---------
RxCan2[2a0] Avg| 3.30| 0.0686| 0.020
Peak| | 0.0686| 0.445
---------------+--------+--------+---------
RxCan2[2a7] Avg| 12.50| 0.2869| 0.021
Peak| | 0.2869| 0.660
---------------+--------+--------+---------
RxCan2[2b0] Avg| 3.20| 0.0707| 0.023
Peak| | 0.0707| 0.331
---------------+--------+--------+---------
RxCan2[2c0] Avg| 3.20| 0.0988| 0.026
Peak| | 0.0988| 0.932
---------------+--------+--------+---------
RxCan2[2e0] Avg| 1.60| 0.0388| 0.024
Peak| | 0.0388| 0.393
---------------+--------+--------+---------
RxCan2[2f0] Avg| 1.70| 0.0376| 0.021
Peak| | 0.0376| 0.282
---------------+--------+--------+---------
RxCan2[2f5] Avg| 12.50| 0.2833| 0.021
Peak| | 0.2833| 0.855
---------------+--------+--------+---------
RxCan2[300] Avg| 1.70| 0.0398| 0.023
Peak| | 0.0398| 0.488
---------------+--------+--------+---------
RxCan2[310] Avg| 1.60| 0.0480| 0.026
Peak| | 0.0480| 0.937
---------------+--------+--------+---------
RxCan2[320] Avg| 1.70| 0.0346| 0.020
Peak| | 0.0346| 0.370
---------------+--------+--------+---------
RxCan2[326] Avg| 9.90| 0.2200| 0.022
Peak| | 0.2200| 0.502
---------------+--------+--------+---------
RxCan2[330] Avg| 32.30| 0.7323| 0.021
Peak| | 0.7323| 1.130
---------------+--------+--------+---------
RxCan2[340] Avg| 8.20| 0.2375| 0.028
Peak| | 0.2375| 0.578
---------------+--------+--------+---------
RxCan2[345] Avg| 1.60| 0.0393| 0.022
Peak| | 0.0393| 0.590
---------------+--------+--------+---------
RxCan2[35e] Avg| 5.00| 0.1303| 0.023
Peak| | 0.1303| 0.943
---------------+--------+--------+---------
RxCan2[360] Avg| 1.70| 0.0381| 0.025
Peak| | 0.0381| 0.922
---------------+--------+--------+---------
RxCan2[361] Avg| 8.20| 0.1907| 0.023
Peak| | 0.1907| 1.119
---------------+--------+--------+---------
RxCan2[363] Avg| 1.30| 0.0337| 0.024
Peak| | 0.0337| 0.425
---------------+--------+--------+---------
RxCan2[370] Avg| 0.90| 0.0194| 0.022
Peak| | 0.0194| 0.246
---------------+--------+--------+---------
RxCan2[381] Avg| 3.20| 0.0684| 0.024
Peak| | 0.0684| 0.828
---------------+--------+--------+---------
RxCan2[3a0] Avg| 16.60| 0.3734| 0.022
Peak| | 0.3734| 0.636
---------------+--------+--------+---------
RxCan2[3d0] Avg| 10.00| 0.2262| 0.023
Peak| | 0.2262| 0.663
---------------+--------+--------+---------
RxCan2[3d5] Avg| 5.60| 0.1335| 0.022
Peak| | 0.1335| 1.222
---------------+--------+--------+---------
RxCan2[400] Avg| 4.00| 0.0949| 0.022
Peak| | 0.0949| 0.715
---------------+--------+--------+---------
RxCan2[405] Avg| 3.70| 0.0861| 0.022
Peak| | 0.0861| 0.443
---------------+--------+--------+---------
RxCan2[40a] Avg| 8.00| 0.1853| 0.021
Peak| | 0.1853| 0.552
---------------+--------+--------+---------
RxCan2[415] Avg| 1.60| 0.0341| 0.021
Peak| | 0.0341| 0.273
---------------+--------+--------+---------
RxCan2[435] Avg| 0.90| 0.0220| 0.025
Peak| | 0.0220| 0.354
---------------+--------+--------+---------
RxCan2[440] Avg| 0.90| 0.0199| 0.021
Peak| | 0.0199| 0.266
---------------+--------+--------+---------
RxCan2[465] Avg| 0.90| 0.0234| 0.028
Peak| | 0.0234| 0.633
---------------+--------+--------+---------
RxCan2[466] Avg| 1.00| 0.0222| 0.021
Peak| | 0.0222| 0.322
---------------+--------+--------+---------
RxCan2[467] Avg| 1.00| 0.0221| 0.020
Peak| | 0.0221| 0.355
---------------+--------+--------+---------
RxCan2[501] Avg| 1.50| 0.0335| 0.023
Peak| | 0.0335| 0.393
---------------+--------+--------+---------
RxCan2[503] Avg| 1.50| 0.0370| 0.022
Peak| | 0.0370| 0.546
---------------+--------+--------+---------
RxCan2[504] Avg| 1.40| 0.0328| 0.022
Peak| | 0.0328| 0.489
---------------+--------+--------+---------
RxCan2[505] Avg| 1.40| 0.0290| 0.021
Peak| | 0.0290| 0.354
---------------+--------+--------+---------
RxCan2[508] Avg| 1.40| 0.0318| 0.023
Peak| | 0.0318| 0.408
---------------+--------+--------+---------
RxCan2[511] Avg| 1.40| 0.0306| 0.022
Peak| | 0.0306| 0.328
---------------+--------+--------+---------
RxCan2[51e] Avg| 1.40| 0.0310| 0.022
Peak| | 0.0310| 0.269
---------------+--------+--------+---------
RxCan2[581] Avg| 1.00| 0.0222| 0.022
Peak| | 0.0222| 0.256
---------------+--------+--------+---------
Cmd:State Avg| 0.00| 0.0000| 0.002
Peak| | 0.0000| 0.024
===============+========+========+=========
Total Avg| 2795.57| 82.7745| 40.174
Cheers,
Simon
Am 17.01.2025 um 17:49 schrieb Michael Balzer via OvmsDev:
OK, I've got a new idea: CAN timing.
Comparing our esp32can bit timing to the esp-idf driver's, there seem to be some differences:
https://github.com/espressif/esp-idf/blob/master/components/hal/include/hal/twai_types_deprecated.h#L75
Transceivers are normally tolerant to small timing offsets. Maybe being off a little bit has no effect under normal conditions, but it has when the transceiver has to cope with a filled RX queue. That could be causing the transceiver to slide just out of sync. If the timing gets garbled, the transceiver would signal errors in the packets to the bus, possibly so many the vehicle ECUs decide to raise an error condition.
Is that plausible?
On why the new poller could be causing this (in combination with too slow processing by the vehicle): as mentioned, the standard CAN listener mechanism doesn't care about queue overflows. The poller does. `OvmsPollers::Queue_PollerFrame()` does a log call when Tx/Rx tracing is enabled, that could even block, but tracing is optional and only meant for debugging. Not optional is the overflow counting using an atomic uint32.
The atomic types are said to be fast, but I never checked their actual implementation on the ESP32. Maybe they can block as well?
@Simon: it would be an option to try commenting out the overflow counting, to see if that's causing the issue.
Regards,
Michael
Am 17.01.25 um 15:37 schrieb Chris Box via OvmsDev:
Yes, I can confirm I've had one experience of the Leaf switching to Neutral while driving, with a yellow warning symbol on the dash. It refused to reselect Drive until I had switched the car off and back on. Derek wasn't so lucky and he need to clear fault codes before the car would work.
On returning home, I found OVMS was not accessible over a network. I didn't try a USB cable. Unplugging and reinserting the OBD cable caused OVMS to rejoin Wi-Fi. However the SD logs showed nothing from the time of the event. CAN writes are enabled, so it can perform SOC limiting.
My car has been using this firmware since 21st November, based on the git master of that day. As a relatively new user of OVMS (only since October) I don't have much experience of older firmware.
Perhaps a safeguard should be implemented before releasing a new stable firmware that will be automatically downloaded by Leaf owners. But I don't have the expertise to know what that safeguard should be. Derek's suggestion of 'only CAN write when parked' appears to be a good idea.
Chris
On 2025-01-15 18:18, Derek Caudwell via OvmsDev wrote:
Since the following email I have high confidence the issue on the Leaf is related/caused by the poller as there has been no further occurrence and Chris has also experienced the car going to neutral on the new poller firmware.
....I haven't ruled out it being a fault with my car yet. Shortly after it faulted the car was run into so has been off the road for sometime, my first step was to replace 12V battery. The ovms unit is now unplugged and if it does not fault over the next month while driving I'll be reasonably confident
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-- Michael Balzer * Am Rahmen 5 * D-58313 Herdecke Fon 02330 9104094 * Handy 0176 20698926