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* Re: [REGRESSION] kexec does firmware reboot in kernel v6.7.6
@ 2024-03-05 10:39 Eric Hagberg
  2024-03-07 16:33 ` Steve Wahl
  0 siblings, 1 reply; 26+ messages in thread
From: Eric Hagberg @ 2024-03-05 10:39 UTC (permalink / raw)
  To: me; +Cc: dave.hansen, regressions, stable, steve.wahl

To add another datapoint to this - I've seen the same problem on Dell
PowerEdge R6615 servers... but no others.

The problem also crept into the 6.1.79 kernel with the commit
mentioned earlier, and is fixed by reverting that commit. Adding
nogbpages to the kernel command line can cause the failure to
reproduce on that hardware as well.

^ permalink raw reply	[flat|nested] 26+ messages in thread
* [REGRESSION] kexec does firmware reboot in kernel v6.7.6
@ 2024-03-01 14:10 Pavin Joseph
  2024-03-01 14:45 ` Linux regression tracking (Thorsten Leemhuis)
  0 siblings, 1 reply; 26+ messages in thread
From: Pavin Joseph @ 2024-03-01 14:10 UTC (permalink / raw)
  To: stable; +Cc: regressions

Hello everyone,

#regzbot introduced v6.7.5..v6.7.6

I'm experiencing an issue where kexec does a full firmware reboot 
instead of kexec reboot.

Issue first submitted at OpenSuse bugzilla [0].

OS details as follows:
Distributor ID:	openSUSE
Description:	openSUSE Tumbleweed-Slowroll
Release:	20240213

Issue has been reproduced by building kernel from source.

kexec works as expected in kernel v6.7.5.
kexec does full firmware reboot in kernel v6.7.6.

I followed the docs here [1] to perform git bisect and find the culprit, 
hope it's alright as I'm quite out of my depth here.

Git bisect logs:
git bisect start
# status: waiting for both good and bad commits
# bad: [b631f5b445dc3379f67ff63a2e4c58f22d4975dc] Linux 6.7.6
git bisect bad b631f5b445dc3379f67ff63a2e4c58f22d4975dc
# status: waiting for good commit(s), bad commit known
# good: [004dcea13dc10acaf1486d9939be4c793834c13c] Linux 6.7.5
git bisect good 004dcea13dc10acaf1486d9939be4c793834c13c

Let me know if there's anything else I can do to help troubleshoot the 
issue.

[0]: https://bugzilla.suse.com/show_bug.cgi?id=1220541
[1]: https://docs.kernel.org/admin-guide/bug-bisect.html

Kind regards,
Pavin Joseph.

^ permalink raw reply	[flat|nested] 26+ messages in thread

end of thread, other threads:[~2024-03-14  9:25 UTC | newest]

Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-03-05 10:39 [REGRESSION] kexec does firmware reboot in kernel v6.7.6 Eric Hagberg
2024-03-07 16:33 ` Steve Wahl
     [not found]   ` <CAJbxNHfPHpbzRwfuFw6j7SxR1OsgBH2VJFPnchBHTtRueJna4A@mail.gmail.com>
2024-03-12 15:13     ` Steve Wahl
2024-03-12 18:42       ` Pavin Joseph
2024-03-12 20:09         ` Steve Wahl
2024-03-12 22:02         ` Steve Wahl
2024-03-12 22:02           ` Steve Wahl
2024-03-13 12:16           ` Eric W. Biederman
2024-03-13 12:16             ` Eric W. Biederman
2024-03-13 16:17             ` Steve Wahl
2024-03-13 16:17               ` Steve Wahl
2024-03-14  9:25               ` Dave Young
2024-03-14  9:25                 ` Dave Young
  -- strict thread matches above, loose matches on Subject: below --
2024-03-01 14:10 Pavin Joseph
2024-03-01 14:45 ` Linux regression tracking (Thorsten Leemhuis)
2024-03-02  8:24   ` Pavin Joseph
2024-03-02 15:17     ` Linux regression tracking (Thorsten Leemhuis)
2024-03-02 16:10       ` Pavin Joseph
2024-03-03  0:00         ` Steve Wahl
2024-03-03  6:32           ` Pavin Joseph
2024-03-04 16:15             ` Steve Wahl
2024-03-04 17:48               ` Pavin Joseph
2024-03-05 15:25                 ` Steve Wahl
2024-03-05 19:58                   ` Pavin Joseph
2024-03-06  3:09                     ` Pavin Joseph
2024-03-06 15:50                       ` Steve Wahl

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