DWARF2 unwinder stuck

[Jiri Kosina <jikos@jikos.cz>]

Hi Andi,

I know you are hunting all the DWARF2 unwinding stucks. I have just got 
the one below, when debuging kernel panic in MPU401 driver, with Linus' 
current git tree.

Do you have fix for this one queued somewhere?

Thanks.

Call Trace:
 [<c025e0a6>]  bus_remove_device+0x78/0x91
 [<c025d106>]  device_del+0x141/0x172
 [<c025fc9a>]  platform_device_unregister+0x8/0x10
 [<c01004ae>]  alsa_card_mpu401_init+0x4c/0x78
 [<c0104087>]  kernel_thread_helper+0x7/0x10
DWARF2 unwinder stuck at kernel_thread_helper+0x7/0x10

Leftover inexact backtrace:
=======================
Code: fe ff ff 89 d8 e8 89 20 00 00 8d 43 04 8d 56 04 8b 48 04 89 50 04 89 46 04 00 00 89 f8 e8 19 ff ff ff 85 c0 b8 00
EIP: [<c041f280>] klist_del+0x7/0x31 SS:ESP 0068:c14c1f6c

-- 
Jiri Kosina
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