Description of problem: Kernel panic on resume. (Not sure if the resume is a red-herring). As of now, not been able to reproduce, but even if reproduced, not sure how to get more information out since its a hard hang. Version-Release number of selected component (if applicable): [dhaval@mordor ~]$ uname -r 2.6.40-4.fc15.x86_64 [dhaval@mordor ~]$ How reproducible: Not been able to reproduce it yet Steps to Reproduce: This specific time, things done. 1.Suspend laptop 2.Remove USB devices connected (mouse, phone, external disk) 3.Resume (Not been able to reproduce this because I had to run immediately so could not see if I can reproduce, but I am assuming its not reproducible) Actual results: Kernel Panic Expected results: System should resume Additional info: 1. mcelog does show hardware issues but those are with thermal trip limits. 2. I have an image that shows the panic, will attach to bug [dhaval@mordor ~]$ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 2 Core(s) per socket: 2 CPU socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 42 Stepping: 7 CPU MHz: 800.000 BogoMIPS: 5382.51 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 4096K NUMA node0 CPU(s): 0-3 [dhaval@mordor ~]$ lspci 00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Device 0126 (rev 09) 00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev b4) 00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 4 (rev b4) 00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b4) 00:1c.6 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 7 (rev b4) 00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Cougar Point LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 04) 03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000 0d:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 04) 0e:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) [dhaval@mordor ~]$ If you need additional data, please let me know. I will try to reproduce later on tonight, once I am back and have the same setup again.
Created attachment 516748 [details] panic picture
(In reply to comment #1) > Created attachment 516748 [details] > panic picture Bummer. That doesn't really show much in the way of a backtrace. I seem to have the same laptop you do, so I'll try and recreate it tomorrow.
So, I managed to hit something. Cannot confirm if it is the same thing. The steps 1. Suspend laptop 2. Disconnect USB devices 3. Resume laptop That crashed it all again. However I cannot confirm that it was the same crash since it not fall through to the console. It is not 100% reproducible yet but I am sure I will figure it out.
So i finally have a trace that made it to hard disk same bug, but different kernel version [dhaval@mordor ~]$ uname -r 2.6.40.6-0.fc15.x86_64 [dhaval@mordor ~]$ backtrace BUG: unable to handle kernel NULL pointer dereference at 0000000000000002 IP: [<ffffffff81116b0e>] kmem_cache_alloc_node+0x10c/0x137 PGD 1f3753067 PUD 1f34c6067 PMD 0 Oops: 0000 [#2] SMP CPU 0 Modules linked in: tcp_lp usb_storage uas fuse ppdev parport_pc lp parport 8021q garp stp llc cpufreq_ondemand acpi_cpufreq mperf bnep bluetooth xts gf128mul dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant arc4 iwlagn snd_hda_intel snd_hda_codec virtio_net snd_hwdep snd_seq snd_seq_device snd_pcm xhci_hcd thinkpad_acpi uvcvideo videodev media v4l2_compat_ioctl32 snd_timer e1000e i2c_i801 mac80211 cfg80211 joydev snd iTCO_wdt iTCO_vendor_support soundcore kvm_intel kvm rfkill snd_page_alloc microcode ipv6 sdhci_pci sdhci mmc_core wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan] Pid: 9855, comm: bash Tainted: G D 2.6.40.6-0.fc15.x86_64 #1 LENOVO 4286CTO/4286CTO RIP: 0010:[<ffffffff81116b0e>] [<ffffffff81116b0e>] kmem_cache_alloc_node+0x10c/0x137 RSP: 0018:ffff8801d00e7dc0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000001200011 RCX: 00000000000013b6 RDX: 00000000000013b5 RSI: 00000000000158c0 RDI: ffffffff817b4cc3 RBP: ffff8801d00e7e10 R08: ffff88021e2158c0 R09: 0000000000000000 R10: 00007ffdb5ea99f0 R11: 0000000000000246 R12: ffff88021dc07600 R13: 0000000000000002 R14: 0000000000000000 R15: 00000000000000d0 FS: 00007ffdb5ea9720(0000) GS:ffff88021e200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000002 CR3: 0000000149fb1000 CR4: 00000000000406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process bash (pid: 9855, threadinfo ffff8801d00e6000, task ffff8801d0971730) Stack: ffff8801f34c6010 ffff8801f360b0b0 ffff88020d4cad80 ffffffff81053066 ffff8801d00e7df0 0000000001200011 ffffffffffffffea 0000000000000000 ffff8801d0971730 00007ffdb5ea99f0 ffff8801d00e7ea0 ffffffff81053066 Call Trace: [<ffffffff81053066>] ? copy_process+0xd2/0x1171 [<ffffffff81053066>] copy_process+0xd2/0x1171 [<ffffffff81486eb5>] ? _cond_resched+0xe/0x22 [<ffffffff811f39f6>] ? security_file_alloc+0x16/0x18 [<ffffffff81054244>] do_fork+0x104/0x2c8 [<ffffffff81063c9a>] ? recalc_sigpending+0x7e/0x82 [<ffffffff81064291>] ? __set_task_blocked+0x66/0x6e [<ffffffff8112fba4>] ? path_put+0x20/0x24 [<ffffffff810101e9>] sys_clone+0x28/0x2a [<ffffffff8148f023>] stub_clone+0x13/0x20 [<ffffffff8148ed02>] ? system_call_fastpath+0x16/0x1b Code: 24 49 83 c4 10 49 83 3c 24 00 eb 46 48 83 c4 28 4c 89 e8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 49 63 44 24 20 49 8b 34 24 48 8d 4a 01 RIP [<ffffffff81116b0e>] kmem_cache_alloc_node+0x10c/0x137 RSP <ffff8801d00e7dc0> CR2: 0000000000000002
something that should have been null had a single bit set, which does sound like it plausibly could be a hardware issue.
this is probably the i915 memory corruption issue that was fixed in 2.6.43.1