When using the linux-next kernel from 13 May 2008 I see the following in
the logs when resuming from hibernate (system is Ubuntu 7.10):
[ 3283.928033] BUG: sleeping function called from invalid context at kernel/rwsem.c:21
[ 3283.928033] in_atomic():0, irqs_disabled():1
[ 3283.928033] 3 locks held by hibernate.sh/5892:
[ 3283.928033] #0: (&buffer->mutex){--..}, at: [<c01958e3>] sysfs_write_file+0x25/0xdf
[ 3283.928033] #1: (pm_mutex){--..}, at: [<c013d6c1>] hibernate+0x10/0x177
[ 3283.928033] #2: (pm_sleep_rwsem){--..}, at: [<c021c32f>] device_suspend+0x2a/0x1c7
[ 3283.928033] irq event stamp: 461790
[ 3283.928033] hardirqs last enabled at (461789): [<c0298283>] __mutex_unlock_slowpath+0xd6/0xde
[ 3283.928033] hardirqs last disabled at (461790): [<c013d5fa>] hibernation_snapshot+0xab/0x162
[ 3283.928033] softirqs last enabled at (461166): [<c011e1de>] __do_softirq+0x8f/0x94
[ 3283.928033] softirqs last disabled at (461161): [<c011e20d>] do_softirq+0x2a/0x42
[ 3283.928033] Pid: 5892, comm: hibernate.sh Not tainted 2.6.25skw #25
[ 3283.928033] [<c0114aad>] __might_sleep+0xb8/0xbf
[ 3283.928033] [<c0298835>] down_read+0x19/0x68
[ 3283.928033] [<c01c5152>] pci_get_subsys+0x48/0xc5
[ 3283.928033] [<c01c51dd>] pci_get_device+0xe/0x10
[ 3283.928033] [<c01c41eb>] quirk_vialatency+0x1b/0xac
[ 3283.928033] [<c01c3fe0>] pci_fixup_device+0x70/0x7c
[ 3283.928033] [<c01c4ae5>] pci_device_resume_early+0x17/0x2e
[ 3283.928033] [<c021c154>] dpm_power_up+0x66/0x94
[ 3283.928033] [<c021c4d9>] device_power_up+0xd/0xf
[ 3283.928033] [<c013d66f>] hibernation_snapshot+0x120/0x162
[ 3283.928033] [<c013d771>] hibernate+0xc0/0x177
[ 3283.928033] [<c013c5ce>] ? state_store+0x0/0xaa
[ 3283.928033] [<c013c613>] state_store+0x45/0xaa
[ 3283.928033] [<c013c5ce>] ? state_store+0x0/0xaa
[ 3283.928033] [<c01b0c3d>] kobj_attr_store+0x1a/0x22
[ 3283.928033] [<c019596b>] sysfs_write_file+0xad/0xdf
[ 3283.928033] [<c01958be>] ? sysfs_write_file+0x0/0xdf
[ 3283.928033] [<c0164afd>] vfs_write+0x88/0xf8
[ 3283.928033] [<c0164f76>] sys_write+0x3b/0x60
[ 3283.928033] [<c01047a2>] sysenter_past_esp+0x5f/0xa5
[ 3283.928033] =======================
[ 3283.928033] pci 0000:00:07.0: Disabling VIA external APIC routing
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Sitsofe | http://sucs.org/~sits/
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