From: Roman Mamedov <rm@romanrm.net>
To: Wols Lists <antlists@youngman.org.uk>
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: Debugging system hangs
Date: Tue, 14 Dec 2021 22:46:58 +0500 [thread overview]
Message-ID: <20211214224658.26cea5a0@nvm> (raw)
In-Reply-To: <d8a0d8c9-f8cc-a70a-03a0-aae2fd6c68c2@youngman.org.uk>
On Tue, 14 Dec 2021 15:54:50 +0000
Wols Lists <antlists@youngman.org.uk> wrote:
> Don't know if this is off-topic or not, seeing as my system is very much
> reliant on raid ...
>
> But basically I'm seeing the system just stop responding. Typically it's
> in screensaver mode, I've got a blank screen, and it won't wake up. (I
> used to think it was something to do with Thunderbird, it mostly
> happened while TB was hammering the system, but no ...)
>
> Today, I had it happen while the system was idle but not in screensaver,
> I run xosview, and everything was clearly frozen - including xosview.
>
> As you might know, my stack is ext4 over lvm (over raid over
> dm-integrity for /home) over spinning rust.
>
> And I run gentoo/systemd - currently on the latest stable kernel afaik,
> 5.10.76-gentoo-r1 SMP x86_64.
>
> Any advice on how to debug a hang - basically I need something that'll
> just sit there so when it crashes (and I press the reset button to
> recover) I'll have some sort of trace. It would be nice to prove it's
> not the disk stack at fault ...
>
> Obviously, "set these options in the kernel" won't faze me ...
Set up "netconsole":
https://www.kernel.org/doc/html/latest/networking/netconsole.html
https://wiki.ubuntu.com/Kernel/Netconsole
--
With respect,
Roman
next prev parent reply other threads:[~2021-12-14 17:47 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-14 15:54 Debugging system hangs Wols Lists
2021-12-14 17:46 ` Roman Mamedov [this message]
2021-12-14 21:59 ` Phil Turmel
2021-12-15 1:08 ` John Stoffel
2021-12-15 21:45 ` Wol
2021-12-15 12:07 ` o1bigtenor
2021-12-15 16:45 ` Roger Heflin
2021-12-15 21:53 ` Wol
2021-12-15 22:05 ` Roger Heflin
2021-12-16 21:43 ` John Stoffel
2021-12-16 21:50 ` Roger Heflin
2021-12-16 22:08 ` John Stoffel
2021-12-16 22:30 ` Wols Lists
2021-12-17 10:07 ` Jani Partanen
2021-12-19 17:52 ` Wols Lists
[not found] ` <CAAMCDecF2PoAtAb1w6reU=RYocaDPb0ZVQ20S44QOrh3fVEXNw@mail.gmail.com>
2021-12-19 19:27 ` Wols Lists
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