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Mike46
n00b
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Joined: 28 Oct 2006
Posts: 39

PostPosted: Sun Jul 26, 2015 11:34 pm    Post subject: used greatest stack depth messages Reply with quote

What exactly are these messages about? I don't recall seeing them before.

dmesg | grep 'used greatest stack depth'

Code:

[    0.132082] kworker/u16:0 (42) used greatest stack depth: 14040 bytes left
[    1.056243] kworker/u16:5 (1235) used greatest stack depth: 13016 bytes left
[    1.701475] systemd-fstab-g (1259) used greatest stack depth: 12840 bytes left
[   10.345022] systemd-udevd (2024) used greatest stack depth: 11696 bytes left
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eccerr0r
Watchman
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Joined: 01 Jul 2004
Posts: 7276
Location: almost Mile High in the USA

PostPosted: Mon Jul 27, 2015 2:16 am    Post subject: Reply with quote

You have stack instrumentation turned on in your kernel. These are benign until you hit 0 stack.

It's enabled by CONFIG_DEBUG_STACK_USAGE in the debug options in your kernel config.
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What am I supposed watching?
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Mike46
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Joined: 28 Oct 2006
Posts: 39

PostPosted: Mon Jul 27, 2015 2:40 am    Post subject: Reply with quote

eccerr0r wrote:
You have stack instrumentation turned on in your kernel. These are benign until you hit 0 stack.

It's enabled by CONFIG_DEBUG_STACK_USAGE in the debug options in your kernel config.


Thanks, I was wondering where they where coming from. :)
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