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Subject: Re: [PATCH v2 1/6] panic: Add a notifier chain for pre-kdump callbacks
Date: Mon, 28 Sep 2026 18:04:09 +0000 [thread overview]
Message-ID: <20260928180411.682061F000FF@smtp.kernel.org> (raw)
In-Reply-To: <81cb85568b36273a8e66215b3e6d671b8488d402.1790014793.git.zack.rusin@broadcom.com>
> Selected crash callbacks should not require running every panic notifier
> before kdump. Add a separate atomic chain with an at-most-once dispatch
> helper, and invoke it before panic reaches the kmsg dumpers.
>
> The helper permits another call from the crash path without repeating
> callbacks or recursing into them. Document that callbacks may run in NMI
> context, with other CPUs running and the kexec lock held.
>
> Link: https://lore.kernel.org/r/aquttpMVKX8e6zGB@pathway.suse.cz
> Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/cover.1790014793.git.zack.rusin@broadcom.com?part=1
next prev parent reply other threads:[~2026-09-28 18:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-28 17:55 [PATCH v2 0/6] panic, x86/vmware: Preserve crash logs before kdump Zack Rusin
2026-09-28 17:55 ` [PATCH v2 1/6] panic: Add a notifier chain for pre-kdump callbacks Zack Rusin
2026-09-28 18:04 ` sashiko-bot [this message]
2026-09-28 17:55 ` [PATCH v2 2/6] crash: Notify pre-kdump callbacks before switching kernels Zack Rusin
2026-09-28 18:08 ` sashiko-bot
2026-09-28 18:40 ` Zack Rusin
2026-09-28 17:55 ` [PATCH v2 3/6] panic: Allow postponing pre-kdump notifiers Zack Rusin
2026-09-28 18:04 ` sashiko-bot
2026-09-28 17:55 ` [PATCH v2 4/6] x86/vmware: Add a bounded pre-kdump log sender Zack Rusin
2026-09-28 18:07 ` sashiko-bot
2026-09-28 17:55 ` [PATCH v2 5/6] x86/vmware: Add the vmware_record_panic_msg sysctl Zack Rusin
2026-09-28 18:06 ` sashiko-bot
2026-09-28 17:55 ` [PATCH v2 6/6] x86/vmware: Report guest crashes after kmsg dumpers Zack Rusin
2026-09-28 18:03 ` sashiko-bot
2026-09-28 20:39 ` [PATCH v2 0/6] panic, x86/vmware: Preserve crash logs before kdump Bradley Morgan
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