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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/07/20 05:10:31 UTC
[GitHub] [incubator-nuttx] pkarashchenko opened a new issue, #6641: CONFIG_DEBUG_MM=y breaks procfs output
pkarashchenko opened a new issue, #6641:
URL: https://github.com/apache/incubator-nuttx/issues/6641
Having a config with `CONFIG_DEBUG_FEATURES=y` and `CONFIG_DEBUG_MM=y` enabled. When running `ps` getting the next output:
```
nsh> ps
PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK HEAP STACK USED FILLED COMMAND
0 0 0 FIFO Kthread N-- Ready 00000000nsh: ps: read failed: 22
00000000 001000 000408 40.8% Idle Task
1 1 224 RR Kthread --- Waiting Semaphore 00000000nsh: ps: read failed: 22
00000000 001992 000276 13.8% hpwork 0x204014f8
2 2 100 RR Kthread --- Waiting Semaphore 00000000nsh: ps: read failed: 22
00000000 001992 000548 27.5% lpwork 0x20401508
3 3 100 RR Task --- Running 00000000nsh: ps: read failed: 22
00000000 002000 001436 71.8% nsh_main
4 4 224 RR Kthread --- Waiting Semaphore 00020000nsh: ps: read failed: 22
```
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[GitHub] [incubator-nuttx] fjpanag commented on issue #6641: CONFIG_DEBUG_MM=y breaks procfs output
Posted by GitBox <gi...@apache.org>.
fjpanag commented on issue #6641:
URL: https://github.com/apache/incubator-nuttx/issues/6641#issuecomment-1191301093
I am working on this, I will provide a fix soon.
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[GitHub] [incubator-nuttx] xiaoxiang781216 closed issue #6641: CONFIG_DEBUG_MM=y breaks procfs output
Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 closed issue #6641: CONFIG_DEBUG_MM=y breaks procfs output
URL: https://github.com/apache/incubator-nuttx/issues/6641
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[GitHub] [incubator-nuttx] pkarashchenko commented on issue #6641: CONFIG_DEBUG_MM=y breaks procfs output
Posted by GitBox <gi...@apache.org>.
pkarashchenko commented on issue #6641:
URL: https://github.com/apache/incubator-nuttx/issues/6641#issuecomment-1191215629
Yes, `CONFIG_DEBUG_MM` and `CONFIG_MM_BACKTRACE` are messed up a bit.
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[GitHub] [incubator-nuttx] fjpanag commented on issue #6641: CONFIG_DEBUG_MM=y breaks procfs output
Posted by GitBox <gi...@apache.org>.
fjpanag commented on issue #6641:
URL: https://github.com/apache/incubator-nuttx/issues/6641#issuecomment-1191212631
Hmm, I think that the confusion between `CONFIG_DEBUG_MM` and `CONFIG_MM_BACKTRACE` is more widespread. Have a look [here](https://github.com/apache/incubator-nuttx/blob/master/include/nuttx/fs/procfs.h#L136) for example.
I think that all uses of `CONFIG_DEBUG_MM` need to be checked.
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[GitHub] [incubator-nuttx] ALTracer commented on issue #6641: CONFIG_DEBUG_MM=y breaks procfs output
Posted by GitBox <gi...@apache.org>.
ALTracer commented on issue #6641:
URL: https://github.com/apache/incubator-nuttx/issues/6641#issuecomment-1191056181
This must be a recent change. I cannot confirm breakage, but release/10.3 behaves well for me, showing all the tasty runtime statistics including heap per-task.
I see your column HEAP shows zero sizes. Maybe something related to mallinfo?
Can you also check /proc/meminfo (`free`) and /proc/memdump?
`nsh> echo used > /proc/memdump`
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[GitHub] [incubator-nuttx] fjpanag commented on issue #6641: CONFIG_DEBUG_MM=y breaks procfs output
Posted by GitBox <gi...@apache.org>.
fjpanag commented on issue #6641:
URL: https://github.com/apache/incubator-nuttx/issues/6641#issuecomment-1191206595
I too observe this issue, and I just spent some time debugging it.
If you enable `CONFIG_MM_BACKTRACE`, then `ps` will work correctly.
The root cause is that heap information printing in `ps` is controlled by `CONFIG_DEBUG_MM`.
This can be seen [here](https://github.com/apache/incubator-nuttx/blob/master/fs/procfs/fs_procfsproc.c#L93).
However, the actual implementation of this depends on `CONFIG_MM_BACKTRACE`.
You can see this [here](https://github.com/apache/incubator-nuttx/blob/master/fs/procfs/fs_procfsproc.c#L1578).
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