lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <200910272031.n9RKVTA4012312@demeter.kernel.org>
Date:	Tue, 27 Oct 2009 20:31:29 GMT
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 14354] Bad corruption with 2.6.32-rc1 and upwards

http://bugzilla.kernel.org/show_bug.cgi?id=14354





--- Comment #132 from Eric Sandeen <sandeen@...hat.com>  2009-10-27 20:31:28 ---
A few other observations from testing today.

I'm driving a test on a lab box by doing a make modules_install into
/tmp/modules on the victim box, and cycling power at some random point while
that runs.

2.6.32 seems to hit this reliably, with the root fs pretty well munged.  2.6.31
hasn't seen it hit yet in my testing, maybe Linus' ext4_write_inode vs.
writeback theory is correct ...

Perhaps more strange, doing the same test on a non-root fs under 2.6.32 also
doesn't seem to hit it reliably.  Could it be something about the remount,ro
flush of the root fs on the way down?

Suspecting that possibly "mount -o ro; e2fsck -a /dev/root" during bootup was
causing problems by writing to the mounted fs, I short-circuited the boot-time
fsck -a; things were still badly corrupted so that doesn't seem to be it.

-- 
Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ