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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Subject: Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
From: Piotr Oniszczuk <piotr.oniszczuk@xxxxxxxxx>
Date: Sat, 31 Aug 2024 11:41:05 +0200
Cc: Pedro Falcato <pedro.falcato@xxxxxxxxx>, Nhat Pham <nphamcs@xxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Linux regressions mailing list <regressions@xxxxxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>, Linux-MM <linux-mm@xxxxxxxxx>
In-reply-to: <CAJD7tkZ01PPYMzcTyX_cwr836jGonJT=fwT3ovc4ixW44keRgg@mail.gmail.com>
References: <BD22A15A-9216-4FA0-82DF-C7BBF8EE642E@gmail.com> <6f65e3a6-5f1a-4fda-b406-17598f4a72d5@leemhuis.info> <ZsiLElTykamcYZ6J@casper.infradead.org> <02D2DA66-4A91-4033-8B98-ED25FC2E0CD6@gmail.com> <CAKEwX=N-10A=C_Cp_m8yxfeTigvmZp1v7TrphcrHuRkHJ8837g@mail.gmail.com> <A512FD59-63DF-48D3-BCB3-83DF8505E7E0@gmail.com> <oophwj3aj2fnfi57ebzjuc536iltilmcpoucyms6nfk2alwvtr@pdj4cn4rvpdn> <3D1B8F1F-2C41-4CCD-A5D7-41CF412F99DE@gmail.com> <CAJD7tkbF2Cx4uRCJAN=EKDLkVC=CApiLAsYt4ZN9YcVUJZp_5g@mail.gmail.com> <EE83D424-A546-410D-B5ED-6E9631746ACF@gmail.com> <CAJD7tkZ01PPYMzcTyX_cwr836jGonJT=fwT3ovc4ixW44keRgg@mail.gmail.com>


> Wiadomość napisana przez Yosry Ahmed <yosryahmed@xxxxxxxxxx> 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)

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

References:
- [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Linux regression tracking (Thorsten Leemhuis)
- Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Matthew Wilcox
- Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Piotr Oniszczuk
- Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Nhat Pham
- Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Piotr Oniszczuk
- Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Pedro Falcato
- Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Piotr Oniszczuk
- Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Yosry Ahmed
- Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Piotr Oniszczuk
- Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
  - From: Yosry Ahmed

Prev by Date: [PATCH RFC] mm: entirely reuse the whole anon mTHP in do_wp_page
Next by Date: Re: [PATCH RFC] mm: entirely reuse the whole anon mTHP in do_wp_page
Previous by thread: Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
Next by thread: Re: [regression] oops on heavy compilations ("kernel BUG at mm/zswap.c:1005!" and "Oops: invalid opcode: 0000")
Index(es):
- Date
- Thread

[Index of Archives] [Linux ARM Kernel] [Linux ARM] [Linux Omap] [Fedora ARM] [IETF Annouce] [Bugtraq] [Linux OMAP] [Linux MIPS] [eCos] [Asterisk Internet PBX] [Linux API]