2.6.33-rc2: WARNING: at kernel/lockdep.c:2830

From: Grant Wilson
Date: Sun Dec 27 2009 - 08:56:41 EST


Hit the following running 2.6.33-rc2. Config available at http://swandive.no-ip.com/linux/config

[ 9675.476027] WARNING: at kernel/lockdep.c:2830 __lock_acquire+0x598/0xb30()
[ 9675.476030] Hardware name: System Product Name
[ 9675.476032] Modules linked in:
[ 9675.476036] Pid: 2733, comm: X Tainted: G W 2.6.33-rc2 #2
[ 9675.476039] Call Trace:
[ 9675.476045] [<ffffffff8106b0c8>] warn_slowpath_common+0x78/0xb0
[ 9675.476048] [<ffffffff8106b10f>] warn_slowpath_null+0xf/0x20
[ 9675.476051] [<ffffffff81098ab8>] __lock_acquire+0x598/0xb30
[ 9675.476056] [<ffffffff81030e92>] ? native_sched_clock+0x22/0x70
[ 9675.476060] [<ffffffff81030d09>] ? sched_clock+0x9/0x10
[ 9675.476064] [<ffffffff8108a41d>] ? sched_clock_cpu+0xcd/0x110
[ 9675.476067] [<ffffffff810990b5>] lock_acquire+0x65/0x90
[ 9675.476073] [<ffffffff8135e670>] ? radeon_fence_signaled+0x30/0xc0
[ 9675.476077] [<ffffffff815fea0a>] _raw_write_lock_irqsave+0x5a/0xa0
[ 9675.476080] [<ffffffff8135e670>] ? radeon_fence_signaled+0x30/0xc0
[ 9675.476083] [<ffffffff815feff5>] ? _raw_spin_unlock_irqrestore+0x45/0x80
[ 9675.476087] [<ffffffff8135e670>] radeon_fence_signaled+0x30/0xc0
[ 9675.476090] [<ffffffff8135e900>] radeon_fence_wait+0x200/0x3c0
[ 9675.476094] [<ffffffff81083e80>] ? autoremove_wake_function+0x0/0x40
[ 9675.476099] [<ffffffff8136f5cf>] radeon_ib_get+0xaf/0x210
[ 9675.476102] [<ffffffff8137046f>] radeon_cs_ioctl+0x8f/0x1c0
[ 9675.476107] [<ffffffff8131b893>] drm_ioctl+0x1c3/0x490
[ 9675.476110] [<ffffffff81098a17>] ? __lock_acquire+0x4f7/0xb30
[ 9675.476113] [<ffffffff813703e0>] ? radeon_cs_ioctl+0x0/0x1c0
[ 9675.476117] [<ffffffff8108a41d>] ? sched_clock_cpu+0xcd/0x110
[ 9675.476120] [<ffffffff810946ea>] ? get_lock_stats+0x2a/0x60
[ 9675.476123] [<ffffffff8109472e>] ? put_lock_stats+0xe/0x30
[ 9675.476126] [<ffffffff81094803>] ? lock_release_holdtime+0xb3/0x160
[ 9675.476130] [<ffffffff81106318>] vfs_ioctl+0x38/0xd0
[ 9675.476133] [<ffffffff811064ea>] do_vfs_ioctl+0x8a/0x5b0
[ 9675.476137] [<ffffffff8127a7f9>] ? __up_read+0x99/0xc0
[ 9675.476140] [<ffffffff81088ac6>] ? up_read+0x26/0x30
[ 9675.476144] [<ffffffff81028bba>] ? sysret_check+0x2e/0x69
[ 9675.476148] [<ffffffff81106a5a>] sys_ioctl+0x4a/0x80
[ 9675.476151] [<ffffffff81028b82>] system_call_fastpath+0x16/0x1b

Cheers,
Grant
--
Running Linux 2.6.33-rc2 on x86_64
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