mmotm 2008-12-09-15-24: e1000e mutex contention

[Jiri Slaby]

Hi,

during bootup, I got ton of these:

WARNING: at drivers/net/e1000e/ich8lan.c:413
e1000_acquire_swflag_ich8lan+0x43/0xf0()
Hardware name: To Be Filled By O.E.M.
e1000e mutex contention. Owned by pid -1
Modules linked in:
Pid: 1, comm: swapper Tainted: G        W  2.6.28-rc7-mm1_64 #490
Call Trace:
 [<ffffffff8023e25f>] warn_slowpath+0xaf/0x110
 [<ffffffff803c1b1d>] ? vt_console_print+0x26d/0x380
 [<ffffffff8023e403>] ? __call_console_drivers+0x73/0x90
 [<ffffffff80259954>] ? up+0x34/0x50
 [<ffffffff8023e98d>] ? release_console_sem+0x1bd/0x210
 [<ffffffff803fe333>] e1000_acquire_swflag_ich8lan+0x43/0xf0
 [<ffffffff803fe748>] e1000_read_nvm_ich8lan+0x78/0x130
 [<ffffffff80401ad1>] e1000e_read_pba_num+0x31/0x80
 [<ffffffff80589609>] e1000_probe+0xcb9/0xd00
 [<ffffffff8035d46a>] ? kobject_get+0x1a/0x30
 [<ffffffff80370092>] local_pci_probe+0x12/0x20
 [<ffffffff80370c50>] pci_device_probe+0x80/0xa0
 [<ffffffff803f36eb>] ? driver_sysfs_add+0x6b/0x90
 [<ffffffff803f3832>] driver_probe_device+0xa2/0x1e0
 [<ffffffff803f3a0b>] __driver_attach+0x9b/0xa0
 [<ffffffff803f3970>] ? __driver_attach+0x0/0xa0
 [<ffffffff803f2ff3>] bus_for_each_dev+0x63/0x90
 [<ffffffff80791560>] ? e1000_init_module+0x0/0x70
 [<ffffffff803f367c>] driver_attach+0x1c/0x20
 [<ffffffff803f28a8>] bus_add_driver+0x1f8/0x270
 [<ffffffff80791560>] ? e1000_init_module+0x0/0x70
 [<ffffffff803f3bf0>] driver_register+0x70/0x160
 [<ffffffff80791560>] ? e1000_init_module+0x0/0x70
 [<ffffffff80370f2a>] __pci_register_driver+0x5a/0xa0
 [<ffffffff80791560>] ? e1000_init_module+0x0/0x70
 [<ffffffff807915af>] e1000_init_module+0x4f/0x70
 [<ffffffff80791360>] ? loop_init+0x0/0x1dc
 [<ffffffff8020903c>] _stext+0x3c/0x170
 [<ffffffff8027f068>] ? register_irq_proc+0xb8/0xe0
 [<ffffffff80300000>] ? load_script+0x70/0x250
 [<ffffffff807726ab>] kernel_init+0x166/0x1c2
 [<ffffffff8020d5ba>] child_rip+0xa/0x20
 [<ffffffff80772545>] ? kernel_init+0x0/0x1c2
 [<ffffffff8020d5b0>] ? child_rip+0x0/0x20
---[ end trace 9c09681510f4b604 ]---

I've found few reports of this in the past, not sure if this one is related.
The last known working is some mmotm based on -rc5.
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