From: Harry Yoo <harry@kernel.org>
To: Oliver Sang <oliver.sang@intel.com>
Cc: oe-lkp@lists.linux.dev, lkp@intel.com,
Danielle Constantino <dconstantino@meta.com>,
Shakeel Butt <shakeel.butt@linux.dev>,
linux-mm@kvack.org
Subject: Re: [harry:kmalloc-no-objext-rfc-v1r1] [mm/slab] 6bc21472e7: BUG:kernel_NULL_pointer_dereference,address
Date: Fri, 10 Jul 2026 19:04:50 +0900 [thread overview]
Message-ID: <292ffec0-6a6b-451d-8977-3a5217c65d2c@kernel.org> (raw)
In-Reply-To: <alCddXaJ4HkjZNXi@xsang-OptiPlex-9020>
[-- Attachment #1.1: Type: text/plain, Size: 1323 bytes --]
On 7/10/26 4:21 PM, Oliver Sang wrote:
> hi, Harry Yoo,
Hi Oliver,
> On Thu, Jul 09, 2026 at 06:26:54PM +0900, Harry Yoo wrote:
>> On 7/9/26 5:48 PM, kernel test robot wrote:
>>>
>>>
>>> Hello,
>>>
>>> kernel test robot noticed "BUG:kernel_NULL_pointer_dereference,address" on:
>>>
>>> commit: 6bc21472e7eb9f8c771ffdf86266aa6d9dcb1dac ("mm/slab: prevent unbounded recursion due to obj_exts in free path")
>>> https://git.kernel.org/cgit/linux/kernel/git/harry/linux.git kmalloc-no-objext-rfc-v1r1
>>
>> This is v1r1, and I posted v1r3, because it was bootstrapping sheaves
>> for normal kmalloc only. This crashed the kernel but was fixed in v1r2.
>>
>> Apologies for the confusion, I discovered bugs after exposing it in my
>> tree (force pushing isn't great, you know...) I should probably have
>> deleted that broken one, though. :)
>>
>> Will be posting v2 that fixes false warnings w/ memalloc profiling
>> debug shortly.
>
> thanks a lot for information! sorry that our bot still cannot analyze branch
> version so far.
No worries :)
Is there any way to tell the bot that a branch is broken,
e.g.) deleting a broken branch from the repository?
> we will check the latest branch in your repo before reporting
> in the future.
Thanks!
--
Cheers,
Harry / Hyeonggon
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 228 bytes --]
prev parent reply other threads:[~2026-07-10 10:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-09 8:48 [harry:kmalloc-no-objext-rfc-v1r1] [mm/slab] 6bc21472e7: BUG:kernel_NULL_pointer_dereference,address kernel test robot
2026-07-09 9:26 ` Harry Yoo
2026-07-10 7:21 ` Oliver Sang
2026-07-10 10:04 ` Harry Yoo [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=292ffec0-6a6b-451d-8977-3a5217c65d2c@kernel.org \
--to=harry@kernel.org \
--cc=dconstantino@meta.com \
--cc=linux-mm@kvack.org \
--cc=lkp@intel.com \
--cc=oe-lkp@lists.linux.dev \
--cc=oliver.sang@intel.com \
--cc=shakeel.butt@linux.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox