From: Tomas Winkler <tomas.winkler@intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alexander Usyskin <alexander.usyskin@intel.com>,
linux-kernel@vger.kernel.org,
Tomas Winkler <tomas.winkler@intel.com>
Subject: [char-misc for 4.19 0/2] mei: fix suspend/hibernation regression
Date: Mon, 27 Aug 2018 22:40:14 +0300 [thread overview]
Message-ID: <20180827194016.1287-1-tomas.winkler@intel.com> (raw)
A kernel panic during suspend/hibernation was reported on kernel 4.17.
RIP: mei_cl_set_disconnected+0x5/0x260[mei]
Call trace:
mei_cl_all_disconnect+0x22/0x30
mei_reset+0x194/0x250
__synchronize_hardirq+0x43/0x50
_cond_resched+0x15/0x30
mei_me_intr_clear+0x20/0x100
mei_stop+0x76/0xb0
mei_me_shutdown+0x3f/0x80
pci_device_shutdown+0x34/0x60
kernel_restart+0x0e/0x30
Bugzilla entries:
https://bugzilla.redhat.com/show_bug.cgi?id=1597481
https://bugzilla.kernel.org/show_bug.cgi?id=200455
The regression is caused by a combination of two coding errors
in two separate patches. In addition, this currently only happens
on platforms with AMT watchdog enabled that systemd holds.
Both patches bellow should be applied.
Tomas Winkler (2):
mei: bus: fix hw module get/put balance
mei: bus: need to unlink client before freeing
drivers/misc/mei/bus.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
--
2.14.4
next reply other threads:[~2018-08-27 19:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-27 19:40 Tomas Winkler [this message]
2018-08-27 19:40 ` [char-misc for 4.9 1/2] mei: bus: fix hw module get/put balance Tomas Winkler
2018-08-27 19:40 ` [char-misc for 4.9 2/2] mei: bus: need to unlink client before freeing Tomas Winkler
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=20180827194016.1287-1-tomas.winkler@intel.com \
--to=tomas.winkler@intel.com \
--cc=alexander.usyskin@intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
/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;
as well as URLs for NNTP newsgroup(s).