DWARF2 unwinder stuck

From: Jiri Kosina
Date: Wed Oct 04 2006 - 16:46:57 EST


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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