Thread (5 messages) 5 messages, 4 authors, 2008-02-12

Re: [2.6.24 REGRESSION] BUG: Soft lockup - with VFS

From: Oliver Pinter <hidden>
Date: 2008-02-05 21:48:34
Also in: linux-fsdevel, lkml

On 2/5/08, Oliver Pinter [off-list ref] wrote:
http://students.zipernowsky.hu/~oliverp/kernel/regression_2624/

uploaded:
kernel image
.config
new pictures
lspci
lsusb

-----

when read for /dev/uba then crashed the kernel, the read is egal, thet
dd or mount is ...

On 2/5/08, Oliver Pinter [off-list ref] wrote:
quoted
yes, but auch too with latest git ... my top is on:
9ef9dc69d4167276c04590d67ee55de8380bc1ad

then i complie the new kernel

On 2/5/08, Andrew Morton [off-list ref] wrote:
quoted
On Tue, 05 Feb 2008 08:46:56 -0500 Stephen Smalley [off-list ref]
wrote:
quoted
On Mon, 2008-02-04 at 21:39 -0800, Andrew Morton wrote:
quoted
On Mon, 28 Jan 2008 09:31:43 +0100 "Oliver Pinter (Pintér Olivér)"
[off-list ref] wrote:
quoted
quoted
quoted
hi all!

in the 2.6.24 become i some soft lockups with usb-phone, when i
pluged
quoted
quoted
quoted
quoted
in the mobile, then the vfs-layer crashed. am afternoon can i the
.config send, and i bisected the kernel, when i have time.

pictures from crash:
http://students.zipernowsky.hu/~oliverp/kernel/regression_2624/
It looks like selinux's file_has_perm() is doing spin_lock() on an
uninitialised (or already locked) spinlock.
The trace looks bogus to me - I don't see how file_has_perm() could
have
quoted
quoted
been called there, and file_has_perm() doesn't directly take any spin
locks.
Oliver, could you please set CONFIG_FRAME_POINTER=y (which might get a
better trace), and perhaps try Linus's latest tree from
ftp://ftp.kernel.org/pub/linux/kernel/v2.6/snapshots/ (which is a bit
more
quoted
careful about telling us about possibly-bogus backtrace entries)?

Thanks.

--
Thanks,
Oliver

--
Thanks,
Oliver

-- 
Thanks,
Oliver
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