[Cialug] CentOS 7 Stack Overflow

[linux-list at upeke.com]

I believe those are kernel workers processing system calls. You may be able to get a better view of what is going on by taking a series of system traces using perf?

sudo perf record -g -a sleep 10

sudo perf report



From: Cialug <cialug-bounces at cialug.org> on behalf of L. V. Lammert <lvl at omnitec.net>
Date: Tuesday, May 16, 2023 at 11:19 AM
To: Central Iowa Linux Users Group <cialug at cialug.org>
Subject: [Cialug] CentOS 7 Stack Overflow
Seeing a lot of kworker processes on a production server, .. there also
appears to be a stack overflow occurring:

 2547 ?        Ss     3:10 /usr/bin/abrt-watch-log -F BUG: WARNING: at
WARNING: CPU: INFO: possible recursive locking detected ernel BUG at
list_del corruption list_add corruption do_IRQ: stack overflow: ear stack
overflow (cur: eneral protection fault nable to handle kernel ouble fault:
RTNL: assertion failed eek! page_mapcount(page) went negative! adness at
NETDEV WATCHDOG ysctl table check failed : nobody cared IRQ handler type
mismatch Kernel panic - not syncing: Machine Check Exception: Machine
check events logged divide error: bounds: coprocessor segment overrun:
invalid TSS: segment not present: invalid opcode: alignment check: stack
segment: fpu exception: simd exception: iret exception: /var/log/messages
-- /usr/bin/abrt-dump-oops -xtD

Any pointers on identifying the source?

        TIA!
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