linux-kernel - Re: next: armv7: kernel BUG at mm/slub.c:4240! - PC is at __kmem_cache

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Message-Id: <ae159daf-28cb-4d48-9ae8-2f2d1dd5970b@app.fastmail.com>
Date:   Tue, 18 Apr 2023 09:13:50 +0200
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Naresh Kamboju" <naresh.kamboju@...aro.org>,
        linux-next <linux-next@...r.kernel.org>,
        "Linux ARM" <linux-arm-kernel@...ts.infradead.org>,
        "open list" <linux-kernel@...r.kernel.org>,
        lkft-triage@...ts.linaro.org, linux-mm <linux-mm@...ck.org>
Cc:     "Andrew Morton" <akpm@...ux-foundation.org>,
        "Stephen Rothwell" <sfr@...b.auug.org.au>,
        "Ard Biesheuvel" <ardb@...nel.org>,
        "Anders Roxell" <anders.roxell@...aro.org>
Subject: Re: next: armv7: kernel BUG at mm/slub.c:4240! - PC is at
 __kmem_cache_create+0x580/0x588

On Tue, Apr 18, 2023, at 08:51, Naresh Kamboju wrote:

> <0>[    0.000000]  __kmem_cache_create from create_boot_cache+0x9c/0xc4
> <0>[    0.000000]  create_boot_cache from kmem_cache_init+0x8c/0x150
> <0>[    0.000000]  kmem_cache_init from mm_core_init+0x34/0x44
> <0>[    0.000000]  mm_core_init from start_kernel+0x18c/0x3b4
> <0>[    0.000000]  start_kernel from 0x0
> <0>[    0.000000] Code: e3100801 1affff5b eaffff62 e7f001f2 (e7f001f2)
> <4>[    0.000000] ---[ end trace 0000000000000000 ]---
> <0>[    0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
> <0>[    0.000000] ---[ end Kernel panic - not syncing: Attempted to
> kill the idle task! ]---
>

Sorry about this regression. Andrew picked up my follow-up fix today,
should work again tomorrow:

https://lore.kernel.org/all/20230417185525.1420-1-sj@kernel.org/T/#u
https://lore.kernel.org/all/20230418013829.5957EC433D2@smtp.kernel.org/

     Arnd