From: Bob Pearson <rpearsonhpe@gmail.com>
To: Bart Van Assche <bvanassche@acm.org>, Jason Gunthorpe <jgg@ziepe.ca>
Cc: "Daisuke Matsuda (Fujitsu)" <matsuda-daisuke@fujitsu.com>,
'Rain River' <rain.1986.08.12@gmail.com>,
Zhu Yanjun <yanjun.zhu@linux.dev>,
"leon@kernel.org" <leon@kernel.org>,
Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>,
RDMA mailing list <linux-rdma@vger.kernel.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
Subject: Re: [bug report] blktests srp/002 hang
Date: Wed, 18 Oct 2023 15:03:01 -0500 [thread overview]
Message-ID: <643bc60c-bb30-440a-9aa9-6e400c275bbe@gmail.com> (raw)
In-Reply-To: <8e7dbd64-856d-47cc-9d2f-73aa101afa11@acm.org>
On 10/18/23 14:48, Bart Van Assche wrote:
>
> On 10/18/23 12:17, Jason Gunthorpe wrote:
>> If siw hangs as well, I definitely comfortable continuing to debug and
>> leaving the work queues in-tree for now.
>
> Regarding the KASAN complaint that I shared about one month ago, can that complaint have any other root cause than the patch "RDMA/rxe: Add
> workqueue support for rxe tasks"? That report shows a use-after-free by
> rxe code with a pointer to memory that was owned by the rxe driver and
> that was freed by the rxe driver. That memory is an skbuff. The rxe
> driver manages skbuffs. The SRP driver doesn't even know about these
> skbuff objects. See also https://lore.kernel.org/linux-rdma/8ee2869b-3f51-4195-9883-015cd30b4241@acm.org/
>
> Thanks,
>
> Bart.
>
Bart,
I agree with you that that is a rxe issue. But, I haven't been able to reproduce it. However, I am able
to generate hangs without the KASAN bug so it seems to me that they are unrelated. In addition to the
kernel debugging I have added tracing to ib_srp and ib_srpt which may help delay things.
Bob
next prev parent reply other threads:[~2023-10-18 20:03 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-21 6:46 [bug report] blktests srp/002 hang Shinichiro Kawasaki
2023-08-22 1:46 ` Bob Pearson
2023-08-22 10:18 ` Shinichiro Kawasaki
2023-08-22 15:20 ` Bart Van Assche
2023-08-23 16:19 ` Bob Pearson
2023-08-23 19:46 ` Bart Van Assche
2023-08-24 16:24 ` Bob Pearson
2023-08-24 8:55 ` Bernard Metzler
2023-08-24 15:35 ` Bernard Metzler
2023-08-24 16:05 ` Bart Van Assche
2023-08-24 16:27 ` Bob Pearson
2023-08-25 1:11 ` Shinichiro Kawasaki
2023-08-25 1:36 ` Bob Pearson
2023-08-25 10:16 ` Shinichiro Kawasaki
2023-08-25 13:49 ` Bart Van Assche
2023-08-25 13:52 ` Bart Van Assche
2023-09-13 17:36 ` Bob Pearson
2023-09-13 23:38 ` Zhu Yanjun
2023-09-16 5:59 ` Zhu Yanjun
2023-09-19 4:14 ` Shinichiro Kawasaki
2023-09-19 8:07 ` Zhu Yanjun
2023-09-19 16:30 ` Pearson, Robert B
2023-09-19 18:11 ` Bob Pearson
2023-09-20 4:22 ` Zhu Yanjun
2023-09-20 16:24 ` Bob Pearson
2023-09-20 16:36 ` Bart Van Assche
2023-09-20 17:18 ` Bob Pearson
2023-09-20 17:22 ` Bart Van Assche
2023-09-20 17:29 ` Bob Pearson
2023-09-21 5:46 ` Zhu Yanjun
2023-09-21 10:06 ` Zhu Yanjun
2023-09-21 14:23 ` Rain River
2023-09-21 14:39 ` Bob Pearson
2023-09-21 15:08 ` Zhu Yanjun
2023-09-21 15:10 ` Zhu Yanjun
2023-09-22 18:14 ` Bob Pearson
2023-09-22 22:06 ` Bart Van Assche
2023-09-24 1:17 ` Rain River
2023-09-25 4:47 ` Daisuke Matsuda (Fujitsu)
2023-09-25 14:31 ` Zhu Yanjun
2023-09-26 1:09 ` Daisuke Matsuda (Fujitsu)
2023-09-26 6:09 ` Zhu Yanjun
2023-09-25 15:00 ` Bart Van Assche
2023-09-25 15:25 ` Bob Pearson
2023-09-25 15:52 ` Jason Gunthorpe
2023-09-25 15:54 ` Bob Pearson
2023-09-25 19:57 ` Bob Pearson
2023-09-25 20:33 ` Bart Van Assche
2023-09-25 20:40 ` Bob Pearson
2023-09-26 15:36 ` Rain River
2023-09-26 1:17 ` Daisuke Matsuda (Fujitsu)
2023-10-17 17:09 ` Bob Pearson
2023-10-17 17:13 ` Bart Van Assche
2023-10-17 17:15 ` Bob Pearson
2023-10-17 17:19 ` Bob Pearson
2023-10-17 17:34 ` Bart Van Assche
2023-10-17 17:58 ` Jason Gunthorpe
2023-10-17 18:44 ` Bob Pearson
2023-10-17 18:51 ` Jason Gunthorpe
2023-10-17 19:55 ` Bob Pearson
2023-10-17 20:06 ` Bart Van Assche
2023-10-17 20:13 ` Bob Pearson
2023-10-17 21:14 ` Bob Pearson
2023-10-17 21:18 ` Bart Van Assche
2023-10-17 21:23 ` Bob Pearson
2023-10-17 21:30 ` Bart Van Assche
2023-10-17 21:39 ` Bob Pearson
2023-10-17 22:42 ` Bart Van Assche
2023-10-18 18:29 ` Bob Pearson
2023-10-18 19:17 ` Jason Gunthorpe
2023-10-18 19:48 ` Bart Van Assche
2023-10-18 20:03 ` Bob Pearson [this message]
2023-10-18 20:04 ` Bob Pearson
2023-10-18 20:14 ` Bob Pearson
2023-10-18 20:29 ` Bob Pearson
2023-10-18 20:49 ` Bart Van Assche
2023-10-18 21:17 ` Pearson, Robert B
2023-10-18 21:27 ` Bart Van Assche
2023-10-18 21:52 ` Bob Pearson
2023-10-19 19:17 ` Bart Van Assche
2023-10-20 17:12 ` Bob Pearson
2023-10-20 17:41 ` Bart Van Assche
2023-10-18 19:38 ` Bart Van Assche
2023-10-17 19:18 ` Bart Van Assche
2023-10-18 8:16 ` Zhu Yanjun
2023-09-22 11:06 ` Linux regression tracking #adding (Thorsten Leemhuis)
2023-10-13 12:51 ` Linux regression tracking #update (Thorsten Leemhuis)
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=643bc60c-bb30-440a-9aa9-6e400c275bbe@gmail.com \
--to=rpearsonhpe@gmail.com \
--cc=bvanassche@acm.org \
--cc=jgg@ziepe.ca \
--cc=leon@kernel.org \
--cc=linux-rdma@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=matsuda-daisuke@fujitsu.com \
--cc=rain.1986.08.12@gmail.com \
--cc=shinichiro.kawasaki@wdc.com \
--cc=yanjun.zhu@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.