All of lore.kernel.org
 help / color / mirror / Atom feed
From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 198669] Driver crash at radeon_ring_backup+0xd3/0x140 [radeon]
Date: Tue, 06 Feb 2018 14:12:02 +0000	[thread overview]
Message-ID: <bug-198669-2300-NaQOVYmydJ@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-198669-2300@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=198669

--- Comment #6 from Christian König (christian.koenig@amd.com) ---
Well the issue is triggered by the driver reading nonsense values from the
hardware.

E.g. we ask the hardware what the last good position on a 16k ring buffer is
and get 0xffffffff as result (or something like this) which obviously can't be
correct.

My patch mitigated that by clamping the value to a valid range, but if you read
nonsense values from the hardware because the hardware has a loose connection
and acts strange on vibrations then I basically can't guarantee for anything.

-- 
You are receiving this mail because:
You are watching the assignee of the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  parent reply	other threads:[~2018-02-06 14:12 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-04 17:39 [Bug 198669] New: Driver crash at radeon_ring_backup+0xd3/0x140 [radeon] bugzilla-daemon
2018-02-04 17:41 ` [Bug 198669] " bugzilla-daemon
2018-02-04 18:26 ` bugzilla-daemon
2018-02-04 20:55 ` bugzilla-daemon
2018-02-05 12:16 ` bugzilla-daemon
2018-02-05 22:03 ` bugzilla-daemon
2018-02-06 14:05 ` bugzilla-daemon
2018-02-06 14:12 ` bugzilla-daemon [this message]
2018-02-06 15:19 ` bugzilla-daemon
2018-02-06 15:53 ` bugzilla-daemon
2018-02-06 21:39 ` bugzilla-daemon
2018-02-07  8:22 ` bugzilla-daemon
2018-02-07  9:12 ` bugzilla-daemon
2018-02-07  9:16 ` bugzilla-daemon
2018-02-07 12:45 ` bugzilla-daemon
2018-12-03  3:55 ` bugzilla-daemon
2018-12-03  8:14 ` bugzilla-daemon
2018-12-03  8:18 ` bugzilla-daemon
2018-12-03 11:12 ` bugzilla-daemon

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=bug-198669-2300-NaQOVYmydJ@https.bugzilla.kernel.org/ \
    --to=bugzilla-daemon@bugzilla.kernel.org \
    --cc=dri-devel@lists.freedesktop.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 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.