NAK Re: [PATCH 0/1][SRU][OEM-5.14] Fix system hang during suspend and resume with atlantic nic
tjaalton at ubuntu.com
Thu Jun 9 07:54:55 UTC 2022
Koba Ko kirjoitti 9.6.2022 klo 8.54:
> BugLink: https://bugs.launchpad.net/bugs/1978058
> During suspend and resume, system would hang.
> The impact of this regression is the same for resume that I saw on
> thaw: the kernel hangs and nothing except SysRq rebooting can be done.
> Fixes regression in commit cbe6c3a8f8f4 ("net: atlantic: invert deep
> par in pm functions, preventing null derefs"), where I disabled deep
> pm resets in suspend and resume, trying to make sense of the
> atl_resume_common() deep parameter in the first place.
> It turns out, that atlantic always has to deep reset on pm
> operations. Even though I expected that and tested resume, I screwed
> up by kexec-rebooting into an unpatched kernel, thus missing the
> This fixup obsoletes the deep parameter of atl_resume_common, but I
> leave the cleanup for the maintainers to post to mainline.
> Suspend and hibernation were successfully tested by the reporters.
> [Test Case]
> 1. Suspend the machine
> 2. wake up the machine and check if system could work.
> [Where problems could occur]
> Manuel Ullmann (1):
> net: atlantic: always deep reset on pm op, fixing up my null deref
> drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
this came via stable backports
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