I've been running 2.6.35 rc's and xf86-drv-intel git master for awhile, and X has been a bit unstable. Every now and then, graphics freeze completely, except that the mouse still works (I think) and capslock toggles the LED.
If I switch to a different VT and killall -9 Xorg, everything recovers. If I switch to a different VT and switch directly back to X, X hangs completely -- mouse can't move and capslock doesn't work. Alt-SysRq-R doesn't work either (not sure why). It just happened again and I tried something a bit different. I switched to a console, did 'echo 1 >i915_wedged', and got an oops: [20815.509691] [drm] Manually setting wedged to 1 [20815.509701] BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1072 [20815.509708] in_atomic(): 0, irqs_disabled(): 1, pid: 4543, name: bash [20815.509716] Pid: 4543, comm: bash Not tainted 2.6.35-rc6+ #40 [20815.509722] Call Trace: [20815.509738] [<ffffffff81036eed>] __might_sleep+0xe8/0xed [20815.509749] [<ffffffff81446e2d>] do_page_fault+0x1aa/0x2ac [20815.509759] [<ffffffff814441ef>] page_fault+0x1f/0x30 [20815.509770] [<ffffffff8102c1af>] ? __wake_up_common+0x25/0x84 [20815.509778] [<ffffffff8102fc53>] __wake_up+0x39/0x4d [20815.509823] [<ffffffffa0079608>] i915_wedged_write+0xd4/0x10d [i915] [20815.509834] [<ffffffff811b6e0f>] ? security_file_permission+0x16/0x18 [20815.509845] [<ffffffff810f4f3d>] vfs_write+0xae/0x10b [20815.509852] [<ffffffff810f505a>] sys_write+0x4a/0x6e [20815.509863] [<ffffffff81002b2b>] system_call_fastpath+0x16/0x1b [20815.509880] Oops: 0000 [#1] SMP [20815.509947] last sysfs file: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:00/PNP0C09:00/PNP0C0A:00/power_supply/BAT0/voltage_now [20815.510097] CPU 1 [20815.510128] Modules linked in: fuse tun tp_smapi thinkpad_ec cpufreq_ondemand xt_multiport ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 kvm_intel kvm uinput arc4 snd_hda_codec_conexant ecb snd_hda_intel iwlagn snd_hda_codec snd_hwdep iwlcore snd_seq snd_seq_device snd_pcm mac80211 thinkpad_acpi snd_timer tpm_tis hwmon cfg80211 tpm iTCO_wdt i2c_i801 tpm_bios snd iTCO_vendor_support snd_page_alloc microcode soundcore aes_x86_64 aes_generic xts gf128mul dm_crypt i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: scsi_wait_scan] [20815.510257] [20815.510257] Pid: 4543, comm: bash Not tainted 2.6.35-rc6+ #40 7465CTO/7465CTO [20815.510257] RIP: 0010:[<ffffffff8102c1af>] [<ffffffff8102c1af>] __wake_up_common+0x25/0x84 [20815.510257] RSP: 0018:ffff8800378f1e28 EFLAGS: 00010082 [20815.510257] RAX: ffffffffffffffe8 RBX: ffff880135770350 RCX: 0000000000000000 [20815.510257] RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff880135770358 [20815.510257] RBP: ffff8800378f1e68 R08: 0000000000000000 R09: 000000000000000a [20815.510257] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000003 [20815.510257] R13: 0000000000000001 R14: 00007fd2044d5000 R15: 0000000000000001 [20815.510257] FS: 00007fd2044a5700(0000) GS:ffff880001f00000(0000) knlGS:0000000000000000 [20815.510257] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [20815.510257] CR2: 0000000000000000 CR3: 00000000b805c000 CR4: 00000000000406e0 [20815.510257] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [20815.510257] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [20815.510257] Process bash (pid: 4543, threadinfo ffff8800378f0000, task ffff880137705bc0) [20815.510257] Stack: [20815.510257] ffff880135770000 0000000000000001 00007fd2044d5000 ffff880135770350 [20815.510257] <0> 0000000000000286 0000000000000001 00007fd2044d5000 0000000000000001 [20815.510257] <0> ffff8800378f1ea8 ffffffff8102fc53 ffff8800378f1e98 0000000000000000 [20815.510257] Call Trace: [20815.510257] [<ffffffff8102fc53>] __wake_up+0x39/0x4d [20815.510257] [<ffffffffa0079608>] i915_wedged_write+0xd4/0x10d [i915] [20815.510257] [<ffffffff811b6e0f>] ? security_file_permission+0x16/0x18 [20815.510257] [<ffffffff810f4f3d>] vfs_write+0xae/0x10b [20815.510257] [<ffffffff810f505a>] sys_write+0x4a/0x6e [20815.510257] [<ffffffff81002b2b>] system_call_fastpath+0x16/0x1b [20815.510257] Code: 48 01 78 28 c9 c3 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 18 0f 1f 44 00 00 48 8b 47 08 41 89 f4 48 83 e8 18 48 83 c7 08 <4c> 8b 68 18 89 d3 41 89 cf 49 83 ed 18 48 89 7d c8 eb 33 44 8b [20815.510257] RIP [<ffffffff8102c1af>] __wake_up_common+0x25/0x84 [20815.510257] RSP <ffff8800378f1e28> [20815.510257] CR2: 0000000000000000 I then switched back to Xorg and it was completely frozen. SysRq+R did nothing, but SysRq+K got me a VT back. Xorg was unkillable (sorry, should have gotten a stack trace, but I didn't). cat i915_wedged showed that wedged = 1. I tried echo 1 >i915_wedged again and the system froze hard -- even SysRq+B did nothing. This is my trusty bug-exposing GM45 laptop :) The backtrace is on 2.6.35-rc6+. --Andy _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
