Messages in this thread | | | Subject | RE: [Bug 25832] kernel crashes when a mounted ext3/4 file system is physically removed | From | Ben Hutchings <> | Date | Mon, 19 Sep 2011 00:00:18 +0100 |
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On Sat, 2011-09-17 at 13:34 -0400, Alan Stern wrote: > On Sat, 17 Sep 2011, Rocko Requin wrote: > > > > Why were you using gnome-terminal? You should be running the tests at > > > a console VT, not under X at all. Ctrl-Alt-F2 or the equivalent... > > > > Because with Ted's patch it doesn't crash when run from a console VT, even with an X server running. > > That's weird. Maybe the screen updates change some timing. > > > > Here's another patch to address the new problem. You can apply it on > > > top of all the other patches. > > > > Attached is the crash log I get with the latest patch applied. > > Okay, more fallout from the same problem. Here's an updated version of > the previous patch. [...]
There have been reports of this in Debian going back to 2.6.39:
http://bugs.debian.org/631187 http://bugs.debian.org/636263 http://bugs.debian.org/642043
Plus possibly related crashes in elv_put_request after CD-ROM removal:
http://bugs.debian.org/633890 http://bugs.debian.org/634681 http://bugs.debian.org/636103
The former was also reported in Ubuntu since their 2.6.38-10:
https://bugs.launchpad.net/debian/+source/linux-2.6/+bug/793796
The result of the discussion there was that it appeared to be a regression due to commit 86cbfb5607d4b81b1a993ff689bbd2addd5d3a9b ("[SCSI] put stricter guards on queue dead checks") which was also included in a stable update for 2.6.38.
There was also a report on bugzilla.kernel.org, though no-one can see quite what that says now:
https://bugzilla.kernel.org/show_bug.cgi?id=38842
I also reported most of the above to James Bottomley and linux-scsi nearly 2 months ago, to no response.
Ben.
-- Ben Hutchings Power corrupts. Absolute power is kind of neat. - John Lehman, Secretary of the US Navy 1981-1987 [unhandled content-type:application/pgp-signature] | |