Package: linux-image-amd64 Version: 3.16.7-ckt25-1 Severity: normal Hi,
Since yesterday (update to debian 8.4) some PC at work, hangs randomly. All the machines freeze when reading e-mails, searching things online, reading PDF, lauching PHP Storm, etc ... All the machines are from Dell (tested on Dell 990 and Dell 9010). They are all equiped with a SSD disk. Updating to linux-image-4.4.0-0.bpo.1-amd64 seems to resolve the issue. I found this in /var/log/syslog : Apr 4 18:52:55 pci003-01 kernel: [ 79.316412] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 Apr 4 18:52:55 pci003-01 kernel: [ 79.317910] IP: [<ffffffffa042fc3d>] radeon_fence_ref+0xd/0x50 [radeon] Apr 4 18:52:55 pci003-01 kernel: [ 79.318687] PGD 0 Apr 4 18:52:55 pci003-01 kernel: [ 79.319445] Oops: 0002 [#1] SMP Apr 4 18:52:55 pci003-01 kernel: [ 79.320209] Modules linked in: md4 hmac nls_utf8 cifs dns_resolver pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) cpufreq_stats cpufreq_userspace cpufreq_conservative cpufreq_powersave nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc snd_pcm_oss snd_mixer_oss fuse joydev x86_pkg_temp_thermal intel_powerclamp intel_rapl coretemp kvm_intel kvm iTCO_wdt iTCO_vendor_support crc32_pclmul evdev snd_hda_codec_realtek snd_hda_codec_generic aesni_intel aes_x86_64 radeon lrw gf128mul glue_helper dcdbas ablk_helper cryptd ttm drm_kms_helper pcspkr serio_raw drm i2c_i801 i2c_algo_bit i2c_core lpc_ich snd_hda_intel mfd_core snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer tpm_tis snd tpm soundcore mei_me mei button shpchp video processor thermal_sys parport_pc ppdev lp parport autofs4 hid_generic usbhid hid ext4 crc16 mbcache jbd2 raid1 md_mod sg sr_mod sd_mod cdrom crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel psmouse ahci libahci ehci_pci ehci_hcd libata scsi_mod e1000e usbcore ptp usb_common pps_core Apr 4 18:52:55 pci003-01 kernel: [ 79.326413] CPU: 3 PID: 1604 Comm: Xorg Tainted: G O 3.16.0-4-amd64 #1 Debian 3.16.7-ckt25-1 Apr 4 18:52:55 pci003-01 kernel: [ 79.327346] Hardware name: Dell Inc. OptiPlex 990/06D7TR, BIOS A19 08/26/2015 Apr 4 18:52:55 pci003-01 kernel: [ 79.328278] task: ffff8802216c0a20 ti: ffff88003639c000 task.ti: ffff88003639c000 Apr 4 18:52:55 pci003-01 kernel: [ 79.329223] RIP: 0010:[<ffffffffa042fc3d>] [<ffffffffa042fc3d>] radeon_fence_ref+0xd/0x50 [radeon] Apr 4 18:52:55 pci003-01 kernel: [ 79.330192] RSP: 0018:ffff88003639fb18 EFLAGS: 00010292 Apr 4 18:52:55 pci003-01 kernel: [ 79.331154] RAX: 0000000000000000 RBX: ffff8802218f55f8 RCX: ffff8802218f4d08 Apr 4 18:52:55 pci003-01 kernel: [ 79.332125] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 Apr 4 18:52:55 pci003-01 kernel: [ 79.333110] RBP: ffff8802218f5550 R08: ffff8802218f4000 R09: 0000000000000000 Apr 4 18:52:55 pci003-01 kernel: [ 79.334119] R10: 0000000000000002 R11: ffff88003639fe08 R12: 0000000000000020 Apr 4 18:52:55 pci003-01 kernel: [ 79.335117] R13: ffff88003639fbe0 R14: ffff88003639fbb0 R15: ffff8802218f55f8 Apr 4 18:52:55 pci003-01 kernel: [ 79.336120] FS: 00007fd8f5323980(0000) GS:ffff88022dc60000(0000) knlGS:0000000000000000 Apr 4 18:52:55 pci003-01 kernel: [ 79.337143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Apr 4 18:52:55 pci003-01 kernel: [ 79.338142] CR2: 0000000000000008 CR3: 0000000223b3e000 CR4: 00000000000407e0 Apr 4 18:52:55 pci003-01 kernel: [ 79.339125] Stack: Apr 4 18:52:55 pci003-01 kernel: [ 79.340065] ffffffffa04900bc 0020000000000000 0000eea000000100 ffff88003639fcd0 Apr 4 18:52:55 pci003-01 kernel: [ 79.341006] ffff8802218f4000 ffff8802216c0a20 ffff8802216c0a20 0000000000000001 Apr 4 18:52:55 pci003-01 kernel: [ 79.341952] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 Apr 4 18:52:55 pci003-01 kernel: [ 79.342899] Call Trace: Apr 4 18:52:55 pci003-01 kernel: [ 79.343854] [<ffffffffa04900bc>] ? radeon_sa_bo_new+0x25c/0x460 [radeon] Apr 4 18:52:55 pci003-01 kernel: [ 79.344808] [<ffffffffa0444f3e>] ? radeon_ib_get+0x2e/0xd0 [radeon] Apr 4 18:52:55 pci003-01 kernel: [ 79.345758] [<ffffffffa044747c>] ? radeon_cs_ioctl+0x13c/0x730 [radeon] Apr 4 18:52:55 pci003-01 kernel: [ 79.346702] [<ffffffffa03848b7>] ? drm_ioctl+0x1c7/0x5b0 [drm] Apr 4 18:52:55 pci003-01 kernel: [ 79.347637] [<ffffffff81057311>] ? __do_page_fault+0x1d1/0x4f0 Apr 4 18:52:55 pci003-01 kernel: [ 79.348572] [<ffffffffa0414046>] ? radeon_drm_ioctl+0x46/0x80 [radeon] Apr 4 18:52:55 pci003-01 kernel: [ 79.349500] [<ffffffff811bacdf>] ? do_vfs_ioctl+0x2cf/0x4b0 Apr 4 18:52:55 pci003-01 kernel: [ 79.350437] [<ffffffff81407705>] ? __sys_recvmsg+0x65/0x80 Apr 4 18:52:55 pci003-01 kernel: [ 79.351355] [<ffffffff811baf41>] ? SyS_ioctl+0x81/0xa0 Apr 4 18:52:55 pci003-01 kernel: [ 79.352265] [<ffffffff81514a0d>] ? system_call_fast_compare_end+0x10/0x15 Apr 4 18:52:55 pci003-01 kernel: [ 79.353167] Code: e4 48 8b 3b 89 c1 89 ea 48 c7 c6 80 f6 51 a0 31 c0 e8 68 17 f7 e0 eb cb 66 0f 1f 44 00 00 66 66 66 66 90 48 89 f8 ba 01 00 00 00 <f0> 0f c1 57 08 83 c2 01 83 fa 01 7e 01 c3 80 3d 0e 43 11 00 00 Apr 4 18:52:55 pci003-01 kernel: [ 79.355140] RIP [<ffffffffa042fc3d>] radeon_fence_ref+0xd/0x50 [radeon] Apr 4 18:52:55 pci003-01 kernel: [ 79.356104] RSP <ffff88003639fb18> Apr 4 18:52:55 pci003-01 kernel: [ 79.357057] CR2: 0000000000000008 Apr 4 18:52:55 pci003-01 kernel: [ 79.361494] ---[ end trace 2b8380e5f4744c45 ]--- If you need any informations, please let met know. Best regards -- System Information: Debian Release: 8.4 APT prefers stable-updates APT policy: (900, 'stable-updates'), (900, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.4.0-0.bpo.1-amd64 (SMP w/4 CPU cores) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system)
