linux-kernel - 2.6.32-rc7 regression, oops on boot starting udev

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Date:	Sat, 14 Nov 2009 11:16:11 +0100
From:	Soeren Sonnenburg <sonne@...ian.org>
To:	linux-kernel@...r.kernel.org
Subject: 2.6.32-rc7 regression, oops on boot starting udev

Dear all,

I've just git pull'd to -rc7 (was running something between -rc6 and
-rc7 before) and am now getting the attached oopses as soon as udev is
started (before that the kernel boots just fine and I can mount devices)

[  562.738810] BUG: unable to handle kernel paging request at ffffffffa00144a0
[  562.739268] IP: [<ffffffff8126f776>] vsnprintf+0x56/0x5f0
[  562.739579] PGD 1003067 PUD 1007063 PMD 13fa46067 PTE 0
[  562.739948] Oops: 0000 [#1] PREEMPT SMP 
[  562.739948] last sysfs file: /sys/module/evdev/initstate
[  562.739948] CPU 0 
[  562.739948] Modules linked in: evdev(+) usb_storage
[  562.739948] Pid: 1020, comm: modprobe Not tainted 2.6.32-rc7-sonne #16 MacBookPro5,3
[  562.739948] RIP: 0010:[<ffffffff8126f776>]  [<ffffffff8126f776>] vsnprintf+0x56/0x5f0
[  562.739948] RSP: 0018:ffff88011f183c88  EFLAGS: 00010246
[  562.739948] RAX: 0000000000000000 RBX: 00000000000000d0 RCX: ffff88011f183d28
[  562.739948] RDX: ffffffffa00144a0 RSI: 0000000000000000 RDI: 0000000000000000
[  562.739948] RBP: ffff88011f183d18 R08: 0000000000000000 R09: ffff88011f76f800
[  562.739948] R10: 0000000000000000 R11: 0000000000000005 R12: ffffffffa00144a0
[  562.739948] R13: ffff88011f76f800 R14: ffffffffa00144a0 R15: ffff88011f183d28
[  562.739948] FS:  00007ff24ba186f0(0000) GS:ffff880028200000(0000) knlGS:0000000000000000
[  562.739948] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  562.739948] CR2: ffffffffa00144a0 CR3: 000000011ffd3000 CR4: 00000000000406f0
[  562.739948] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  562.739948] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  562.739948] Process modprobe (pid: 1020, threadinfo ffff88011f182000, task ffff88013f371620)
[  562.739948] Stack:
[  562.739948]  0000000000000000 0000000000000000 ffff88011f183d28 ffffffff812677a0
[  562.739948] <0> 0000000000000000 0000000000000000 0000000000000000 ffff880100f707d0
[  562.739948] <0> 0000000000000000 0000000000000000 0000000000000000 0000000000000001
[  562.739948] Call Trace:
[  562.747779]  [<ffffffff812677a0>] ? ida_get_new_above+0xa0/0x200
[  562.747931]  [<ffffffff81271d17>] kvasprintf+0x47/0x90
[  562.747931]  [<ffffffff810e0f0d>] ? __vunmap+0xbd/0x110
[  562.747931]  [<ffffffff812689bd>] kobject_set_name_vargs+0x2d/0x80
[  562.747931]  [<ffffffff81320e84>] dev_set_name+0x64/0x70
[  562.747931]  [<ffffffff810e0f0d>] ? __vunmap+0xbd/0x110
[  562.747931]  [<ffffffff8108bd50>] ? load_module+0x1860/0x19d0
[  562.747931]  [<ffffffff810ec759>] ? kmem_cache_alloc+0x79/0x130
[  562.747931]  [<ffffffffa00123da>] evdev_connect+0xda/0x250 [evdev]
[  562.747931]  [<ffffffff81392b58>] input_attach_handler+0x68/0xa0
[  562.747931]  [<ffffffff81393f2b>] input_register_handler+0xcb/0x120
[  562.747931]  [<ffffffffa0016000>] ? evdev_init+0x0/0x12 [evdev]
[  562.747931]  [<ffffffffa0016010>] evdev_init+0x10/0x12 [evdev]
[  562.747931]  [<ffffffff81009048>] do_one_initcall+0x38/0x190
[  562.747931]  [<ffffffff8108bfa1>] sys_init_module+0xe1/0x260
[  562.747931]  [<ffffffff8100b46b>] system_call_fastpath+0x16/0x1b
[  562.747931] Code: 48 c7 45 b8 00 00 00 00 48 c7 45 c0 00 00 00 00 45 85 c0 0f 88 70 05 00 00 48 8b 45 98 48 03 45 90 48 89 45 a0 0f 82 b2 03 00 00 <41> 0f b6 14 24 8b 45 98 4c 8b 6d 98 89 45 ac 84 d2 
[  562.747931] RIP  [<ffffffff8126f776>] vsnprintf+0x56/0x5f0
[  562.747931]  RSP <ffff88011f183c88>
[  562.747931] CR2: ffffffffa00144a0
[  562.747931] ---[ end trace f41212aa2a59a20c ]---


Soeren
-- 
For the one fact about the future of which we can be certain is that it
will be utterly fantastic. -- Arthur C. Clarke, 1962

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