linux-kernel - Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")

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Message-Id: <277CDE7C-7ED8-4840-9C30-533C9327B028@gmail.com>
Date: Sat, 31 Aug 2024 11:41:05 +0200
From: Piotr Oniszczuk <piotr.oniszczuk@...il.com>
To: Yosry Ahmed <yosryahmed@...gle.com>
Cc: Pedro Falcato <pedro.falcato@...il.com>,
 Nhat Pham <nphamcs@...il.com>,
 Matthew Wilcox <willy@...radead.org>,
 Linux regressions mailing list <regressions@...ts.linux.dev>,
 LKML <linux-kernel@...r.kernel.org>,
 Johannes Weiner <hannes@...xchg.org>,
 Linux-MM <linux-mm@...ck.org>
Subject: Re: [regression] oops on heavy compilations ("kernel BUG at
 mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")



> Wiadomość napisana przez Yosry Ahmed <yosryahmed@...gle.com> w dniu 29.08.2024, o godz. 23:54:
> 
> I also noticed that you are using z3fold as the zpool. Is the problem
> reproducible with zsmalloc? I wouldn't be surprised if there's a
> z3fold bug somewhere.
> 

Hmm - yesterday i recompiled 6.9.12 with zsmalloc and …. after 16h of continuous tests I can’t reproduce issue.
With zsmalloc 6.9.12 looks to me like stable.

With this - what will be your advice to move forward?
Is there any possibility/way to avoid bisecting? (due limited time from my side)