Am seeing this at boot on next-20140114, but I hit this same exact stack trace at least once on next-20131218. v3.13-rc7 doesn't have the problem, so it's not a 3.13 release showstopper. I may not be able to bisect this, as there's 2 or 3 other now-fixed bugs that cause lots of 'bisect skips' because the system won't boot far enough to hit this issue.
I'm not sure who to blame - Jan beat up on fs/notify/notification.c pretty heavily a few days ago, but I hit this at least once last month and that file hasn't been touched since 2012, so the root cause is probably elsewhere. I'm reasonably sure that rebuilding with CONFIG_DEBUG_SPINLOCK=n will "fix" my issue, but that's just papering it over... [ 93.724597] SELinux: initialized (dev autofs, type autofs), uses genfs_contexts [ 93.759851] BUG: spinlock wrong CPU on CPU#3, mount/597 [ 93.759854] lock: 0xffff8800b87f04a8, .magic: dead4ead, .owner: mount/597, .owner_cpu: 35 [ 93.759857] CPU: 3 PID: 597 Comm: mount Not tainted 3.13.0-rc8-next-20140114 #151 [ 93.759858] Hardware name: Dell Inc. Latitude E6530/07Y85M, BIOS A11 03/12/2013 [ 93.759863] 0000000000000000 ffff8800b87e7cd8 ffffffff8164e7e7 ffff8800b8194590 [ 93.759867] ffff8800b87e7cf8 ffffffff8107c42c ffff8800b87f04a8 0000000000000001 [ 93.759871] ffff8800b87e7d18 ffffffff8107c457 ffff8800b87f04a8 ffffffff81aa8b43 [ 93.759872] Call Trace: [ 93.759879] [<ffffffff8164e7e7>] dump_stack+0x4f/0xa2 [ 93.759883] [<ffffffff8107c42c>] spin_dump+0x8c/0x91 [ 93.759886] [<ffffffff8107c457>] spin_bug+0x26/0x28 [ 93.759889] [<ffffffff8107c75e>] do_raw_spin_unlock+0xdc/0xf3 [ 93.759892] [<ffffffff816586b0>] _raw_spin_unlock_irqrestore+0x27/0x83 [ 93.759895] [<ffffffff81073b76>] __wake_up+0x3f/0x46 [ 93.759899] [<ffffffff811630c6>] fsnotify_add_notify_event+0xba/0xdf [ 93.759902] [<ffffffff81166058>] ? SyS_inotify_rm_watch+0xf3/0xf3 [ 93.759905] [<ffffffff81166265>] fanotify_handle_event+0x16f/0x256 [ 93.759910] [<ffffffff8112069b>] ? ac_get_obj.constprop.61+0x39/0x1be [ 93.759913] [<ffffffff8116293b>] send_to_group.isra.1+0x114/0x123 [ 93.759915] [<ffffffff81162c49>] fsnotify+0x2dd/0x41d [ 93.759918] [<ffffffff8165864a>] ? _raw_spin_unlock+0x5b/0x67 [ 93.759922] [<ffffffff8112a73d>] do_sys_open+0x109/0x12e [ 93.759925] [<ffffffff8112a77b>] SyS_open+0x19/0x1b [ 93.759928] [<ffffffff8165f7a2>] system_call_fastpath+0x16/0x1b [ 93.994336] SELinux: initialized (dev hugetlbfs, type hugetlbfs), uses transition SIDs Any brilliant ideas?
pgpW0p3iid004.pgp
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