)]}'
{
  "commit": "e32e58a96de4ac35a03349db2ab69f263ded958f",
  "tree": "aba1b570defb51a6bee2b3ae247d7b6cae16e67d",
  "parents": [
    "52aaa12fbe786c90396f1b11ec39c924ccdd8fd5"
  ],
  "author": {
    "name": "Peter Zijlstra",
    "email": "a.p.zijlstra@chello.nl",
    "time": "Fri Jun 06 10:14:08 2008 +0200"
  },
  "committer": {
    "name": "Ingo Molnar",
    "email": "mingo@elte.hu",
    "time": "Thu Jun 12 21:27:09 2008 +0200"
  },
  "message": "x86: fix lockdep warning during suspend-to-ram\n\nAndrew Morton wrote:\n\n\u003e I\u0027ve been seeing the below for a long time during suspend-to-ram on the Vaio.\n\u003e\n\u003e\n\u003e PM: Syncing filesystems ... done.\n\u003e PM: Preparing system for mem sleep\n\u003e Freezing user space processes ... \u003c4\u003e------------[ cut here ]------------\n\u003e WARNING: at kernel/lockdep.c:2658 check_flags+0x4c/0x127()\n\u003e Modules linked in: i915 drm ipw2200 sonypi ipv6 autofs4 hidp l2cap bluetooth sunrpc nf_conntrack_netbios_ns ipt_REJECT nf_conntrack_ipv4 xt_state nf_conntrack xt_tcpudp iptable_filter ip_tables x_tables acpi_cpufreq nvram ohci1394 ieee1394 ehci_hcd uhci_hcd sg joydev snd_hda_intel snd_seq_dummy sr_mod snd_seq_oss cdrom snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss ieee80211 pcspkr ieee80211_crypt snd_pcm i2c_i801 snd_timer i2c_core ide_pci_generic piix snd soundcore snd_page_alloc button ext3 jbd ide_disk ide_core [last unloaded: ipw2200]\n\u003e Pid: 3250, comm: zsh Not tainted 2.6.26-rc5 #1\n\u003e  [\u003cc011c5f5\u003e] warn_on_slowpath+0x41/0x6d\n\u003e  [\u003cc01080e6\u003e] ? native_sched_clock+0x82/0x96\n\u003e  [\u003cc013789c\u003e] ? mark_held_locks+0x41/0x5c\n\u003e  [\u003cc0315688\u003e] ? _spin_unlock_irqrestore+0x36/0x58\n\u003e  [\u003cc0137a29\u003e] ? trace_hardirqs_on+0xe6/0x10d\n\u003e  [\u003cc0138637\u003e] ? __lock_acquire+0xae3/0xb2b\n\u003e  [\u003cc0313413\u003e] ? schedule+0x39b/0x3b4\n\u003e  [\u003cc0135596\u003e] check_flags+0x4c/0x127\n\u003e  [\u003cc01386b9\u003e] lock_acquire+0x3a/0x86\n\u003e  [\u003cc0315075\u003e] _spin_lock+0x26/0x53\n\u003e  [\u003cc0140660\u003e] ? refrigerator+0x13/0xc3\n\u003e  [\u003cc0140660\u003e] refrigerator+0x13/0xc3\n\u003e  [\u003cc012684a\u003e] get_signal_to_deliver+0x3c/0x31e\n\u003e  [\u003cc0102fe7\u003e] do_notify_resume+0x91/0x6ee\n\u003e  [\u003cc01359fd\u003e] ? lock_release_holdtime+0x50/0x56\n\u003e  [\u003cc0315688\u003e] ? _spin_unlock_irqrestore+0x36/0x58\n\u003e  [\u003cc0235d24\u003e] ? read_chan+0x0/0x58c\n\u003e  [\u003cc0137a29\u003e] ? trace_hardirqs_on+0xe6/0x10d\n\u003e  [\u003cc0315694\u003e] ? _spin_unlock_irqrestore+0x42/0x58\n\u003e  [\u003cc0230afa\u003e] ? tty_ldisc_deref+0x5c/0x63\n\u003e  [\u003cc0233104\u003e] ? tty_read+0x66/0x98\n\u003e  [\u003cc014b3f0\u003e] ? audit_syscall_exit+0x2aa/0x2c5\n\u003e  [\u003cc0109430\u003e] ? do_syscall_trace+0x6b/0x16f\n\u003e  [\u003cc0103a9c\u003e] work_notifysig+0x13/0x1b\n\u003e  \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\u003e ---[ end trace 25b49fe59a25afa5 ]---\n\u003e possible reason: unannotated irqs-off.\n\u003e irq event stamp: 58919\n\u003e hardirqs last  enabled at (58919): [\u003cc0103afd\u003e] syscall_exit_work+0x11/0x26\n\nJoy - I so love entry.S\n\nBest I can make of it:\n\nsyscall_exit_work\n  resume_userspace\n    DISABLE_INTERRUPTS\n    (no TRACE_IRQS_OFF)\n      work_pending\n        work_notifysig\n          do_notify_resume()\n            do_signal()\n              get_signal_to_deliver()\n                try_to_freeze()\n                  refrigerator()\n                    task_lock() -\u003e check_flags() -\u003e BANG\n\nThe normal path is:\n\nsyscall_exit_work\n  resume_userspace\n    DISABLE_INTERRUPTS\n    restore_all\n      TRACE_IRQS_IRET\n      iret\n\nNo idea why that would not warn..\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "2a609dc3271c3dc2008ad740133f314e5ed177b6",
      "old_mode": 33188,
      "old_path": "arch/x86/kernel/entry_32.S",
      "new_id": "c778e4fa55a2eacc79d34954c2fdcef1367d5732",
      "new_mode": 33188,
      "new_path": "arch/x86/kernel/entry_32.S"
    }
  ]
}