From: Jason Gunthorpe <jgg-uk2M96/98Pc@public.gmane.org>
To: Laurence Oberman <loberman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Bart Van Assche <Bart.VanAssche-Sjgp3cTcYWE@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"Dutile, Don" <ddutile-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: Kernel v4.16 / v4.17 SRP and SRPT patches
Date: Wed, 10 Jan 2018 11:26:48 -0700 [thread overview]
Message-ID: <20180110182648.GI4518@ziepe.ca> (raw)
In-Reply-To: <1515591723.26021.6.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On Wed, Jan 10, 2018 at 08:42:03AM -0500, Laurence Oberman wrote:
> [ 946.647514] kernel tried to execute NX-protected page - exploit
> attempt? (uid: 0)
> [ 946.691954] BUG: unable to handle kernel paging request at
> 00000000a2129b93
> [ 947.889552] Call Trace:
> [ 947.903724] ? __ib_process_cq+0x55/0xa0 [ib_core]
> [ 947.931179] ? ib_cq_poll_work+0x1b/0x60 [ib_core]
> [ 947.958153] ? process_one_work+0x141/0x340
> [ 947.981362] ? worker_thread+0x47/0x3e0
> [ 948.002102] ? kthread+0xf5/0x130
> [ 948.020538] ? rescuer_thread+0x380/0x380
> [ 948.043180] ? kthread_associate_blkcg+0x90/0x90
> [ 948.070184] ? ret_from_fork+0x1f/0x30
These oops's you have are very suggestive that ib_wc->wr_cqe
is garbage..
Did SRP free its wr_cqe data before completion somehow?
Turn on slab poisoning to confirm?
Jason
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next prev parent reply other threads:[~2018-01-10 18:26 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-06 0:22 [PATCH 5/8] infiniband: fix ulp/srpt/ib_srpt.c kernel-doc notation Randy Dunlap
[not found] ` <5a5016c0.4c0a620a.ed2b3.60da-ATjtLOhZ0NVl57MIdRCFDg@public.gmane.org>
2018-01-06 0:36 ` Bart Van Assche
[not found] ` <fcc3f226-848d-abc4-2a81-f4fd821761c9-Sjgp3cTcYWE@public.gmane.org>
2018-01-06 5:55 ` Randy Dunlap
[not found] ` <31f69352-b8b1-9ed1-635b-2c654b49c775-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2018-01-06 16:50 ` Bart Van Assche
2018-01-09 20:15 ` Laurence Oberman
[not found] ` <1515528956.3919.3.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-09 20:31 ` Laurence Oberman
[not found] ` <1515529869.3919.4.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-09 20:51 ` Kernel v4.16 / v4.17 SRP and SRPT patches Bart Van Assche
[not found] ` <1515531079.2721.26.camel-Sjgp3cTcYWE@public.gmane.org>
2018-01-09 21:00 ` Laurence Oberman
[not found] ` <1515531652.26021.1.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-09 22:40 ` Laurence Oberman
[not found] ` <1515537614.26021.3.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-10 13:42 ` Laurence Oberman
[not found] ` <1515591723.26021.6.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-10 18:26 ` Jason Gunthorpe [this message]
[not found] ` <20180110182648.GI4518-uk2M96/98Pc@public.gmane.org>
2018-01-10 18:40 ` Bart Van Assche
[not found] ` <1515609623.2745.20.camel-Sjgp3cTcYWE@public.gmane.org>
2018-01-10 18:59 ` Laurence Oberman
[not found] ` <1515610750.10153.1.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-10 19:15 ` Jason Gunthorpe
[not found] ` <20180110191510.GK4518-uk2M96/98Pc@public.gmane.org>
2018-01-10 19:30 ` Laurence Oberman
[not found] ` <1515612639.10153.3.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-10 20:52 ` Jason Gunthorpe
[not found] ` <20180110205243.GP4776-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2018-01-10 21:11 ` Laurence Oberman
[not found] ` <1515618674.10153.6.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-10 21:15 ` Jason Gunthorpe
[not found] ` <20180110211501.GS4776-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2018-01-11 13:02 ` Laurence Oberman
[not found] ` <1515675741.21421.1.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-11 18:20 ` Laurence Oberman
[not found] ` <1515694855.21421.3.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-11 18:35 ` Patch: RDMA mlx5_core.c : mlx5_try_fast_unload causes panics Laurence Oberman
2018-01-11 20:43 ` Kernel v4.16 / v4.17 SRP and SRPT patches Laurence Oberman
[not found] ` <1515703435.21421.9.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-11 21:15 ` Bart Van Assche
[not found] ` <1515705340.2752.60.camel-Sjgp3cTcYWE@public.gmane.org>
2018-01-11 21:33 ` Laurence Oberman
[not found] ` <1515706433.21421.11.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-11 21:43 ` Bart Van Assche
2018-01-12 21:11 ` Bart Van Assche
[not found] ` <1515791472.2396.57.camel-Sjgp3cTcYWE@public.gmane.org>
2018-01-13 0:09 ` Laurence Oberman
[not found] ` <1515802177.1566.1.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-13 1:57 ` Laurence Oberman
[not found] ` <1515808673.11354.1.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-13 14:53 ` Laurence Oberman
[not found] ` <1515855226.32050.1.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-01-15 16:12 ` Bart Van Assche
[not found] ` <1516032762.3951.5.camel-Sjgp3cTcYWE@public.gmane.org>
2018-01-15 16:52 ` Laurence Oberman
2018-01-10 21:17 ` Laurence Oberman
2018-01-10 19:17 ` Jason Gunthorpe
[not found] ` <20180110191758.GL4518-uk2M96/98Pc@public.gmane.org>
2018-01-10 19:32 ` Bart Van Assche
[not found] ` <1515612733.2745.27.camel-Sjgp3cTcYWE@public.gmane.org>
2018-01-10 22:43 ` Jason Gunthorpe
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