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    SubjectRe: [2.6.24 REGRESSION] BUG: Soft lockup - with VFS
    On 2/5/08, Oliver Pinter <oliver.pntr@gmail.com> 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 <oliver.pntr@gmail.com> wrote:
    > > yes, but auch too with latest git ... my top is on:
    > > 9ef9dc69d4167276c04590d67ee55de8380bc1ad
    > >
    > > then i complie the new kernel
    > >
    > > On 2/5/08, Andrew Morton <akpm@linux-foundation.org> wrote:
    > > > On Tue, 05 Feb 2008 08:46:56 -0500 Stephen Smalley <sds@tycho.nsa.gov>
    > > > wrote:
    > > >
    > > > >
    > > > > On Mon, 2008-02-04 at 21:39 -0800, Andrew Morton wrote:
    > > > > > On Mon, 28 Jan 2008 09:31:43 +0100 "Oliver Pinter (Pintér Olivér)"
    > > > <oliver.pntr@gmail.com> wrote:
    > > > > >
    > > > > > > hi all!
    > > > > > >
    > > > > > > in the 2.6.24 become i some soft lockups with usb-phone, when i
    > > pluged
    > > > > > > 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
    > > > > 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
    > > > careful about telling us about possibly-bogus backtrace entries)?
    > > >
    > > > Thanks.
    > > >
    > >
    > >
    > > --
    > > Thanks,
    > > Oliver
    > >
    >
    >
    > --
    > Thanks,
    > Oliver
    >


    --
    Thanks,
    Oliver
    --
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