Re: system gets stuck in a lock during boot

From: Justin P. Mattock
Date: Tue Aug 18 2009 - 16:05:48 EST


Steven Rostedt wrote:
On Tue, 18 Aug 2009, Justin Mattock wrote:

On Tue, Aug 18, 2009 at 9:09 AM, Steven Rostedt<rostedt@xxxxxxxxxxx> wrote:
On Tue, Aug 18, 2009 at 12:49:06PM +0200, Frederic Weisbecker wrote:
On Thu, Aug 13, 2009 at 08:42:21AM -0700, Justin P. Mattock wrote:
I posted already and had no reply,
I cannot boot my system with the latest git

seems to be stuck in some lock:

[ 0.655640] [<ffffffff81440c33>] panic+0x84/0x129
[ 0.655883] [<ffffffff81063f96>] do_exit+0x84/0x67e
[ 0.656125] [<ffffffff81445044>] oops_end+0x9c/0xb7
[ 0.656368] [<ffffffff81044a6c>] no_context+0x200/0x223
[ 0.656611] [<ffffffff81442d3d>] ? __mutex_lock_slowpath+0x226/0x249
[ 0.656848] [<ffffffff81044c36>] __bad_area_nosemaphore+0x1a7/0x1e1
[ 0.657097] [<ffffffff81442b01>]? mutex_unlock+0x1c/0x32
[ 0.657097] [<ffffffff811ce094>] ? inode_doinit_with_dentry+0x533/0x5be
[ 0.657579] [<ffffffff81443ee0>] ? _spin_unlock+0x1c/0x32
[ 0.657822] [<ffffffff81044c91>] bad_area_nosemaphore+0x2a/0x40
[ 0.658066] [<ffffffff811ce149>] ? selinux_d_instantiate+0x2a/0x40
[ 0.658309] [<ffffffff8144687d>] do_page_fault+0x192/0x2dd
[ 0.658549] [<ffffffff814444cf>] page_fault+0x1f/0x30
[ 0.658791] [<ffffffff8120e856>] ? strcmp+0x17/0x46
[ 0.659040] [<ffffffff810b9ca0>] event_create_dir+0x49/0x37b

Ouch...

I've never seen such panic. Could you send me your config, hopefully
I could reproduce it?
Send me the config too please.

-- Steve


yeah this happens with rc6 but not with rc5.

The system is a linux from scratch build
x86_64 I used these flags for building everything:

CFLAGS=" -m64 -mtune=core2 -march=core2 -mfpmath=both -O2 -pipe
-fomit-frame-pointer -fstack-protector" CXXFLAGS="${CFLAGS}" MAKEOPTS="{-j3}"

also: I have a macbook(not x86_64) that is running rc6 that seems
to be fine.(I can double check).

attached is .config, dmesg as well.

I used your config and I can not reproduce the bug you have. Was this a
constant issue? That is, was it reproducible at every boot?

-- Steve
yes.
every boot this shows up.

Justin P. Mattock

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