linux-kernel - Re: [PATCH v2 12/19] lib/stackdepot: use list

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Message-Id: <20230916130412.bdd04e5344f80af583332e9d@linux-foundation.org>
Date:   Sat, 16 Sep 2023 13:04:12 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Anders Roxell <anders.roxell@...aro.org>
Cc:     andrey.konovalov@...ux.dev, Marco Elver <elver@...gle.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Vlastimil Babka <vbabka@...e.cz>, kasan-dev@...glegroups.com,
        Evgenii Stepanov <eugenis@...gle.com>,
        Oscar Salvador <osalvador@...e.de>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Andrey Konovalov <andreyknvl@...gle.com>, arnd@...db.de,
        sfr@...b.auug.org.au
Subject: Re: [PATCH v2 12/19] lib/stackdepot: use list_head for stack record
 links

On Sat, 16 Sep 2023 19:43:35 +0200 Anders Roxell <anders.roxell@...aro.org> wrote:

> On 2023-09-13 19:14, andrey.konovalov@...ux.dev wrote:
> > From: Andrey Konovalov <andreyknvl@...gle.com>
> > 
> > Switch stack_record to use list_head for links in the hash table
> > and in the freelist.
> > 
> > This will allow removing entries from the hash table buckets.
> > 
> > This is preparatory patch for implementing the eviction of stack records
> > from the stack depot.
> > 
> > Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
> > 
> 
> Building on an arm64 kernel from linux-next tag next-20230915, and boot
> that in QEMU. I see the following kernel panic.
> 
> ...
>
> The full log can be found [1] and the .config file [2]. I bisected down
> to this commit, see the bisect log [3].
> 
> When reverted these two commits I managed to build and the kernel
> booted.
> 
> 47590ecf1166 ("lib/stackdepot: use list_head for stack record links")
> 8729f3c26fc2 ("lib/stackdepot: allow users to evict stack traces")

Thanks, I have dropped this v2 series.