Dear Chris and Uli, I booted the pokini now with HDMI and the issue is back:
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[ 5.998669] BUG: unable to handle kernel paging request at 206e7676 [ 5.998689] IP: [<c17a4592>] mutex_lock+0x12/0x30 [ 5.998704] *pdpt = 00000000320fb001 *pde = 0000000000000000 [ 5.998712] Oops: 0002 [#1] SMP [ 5.998720] Modules linked in: autofs4 hid_generic hid_cherry usbhid hid pata_acpi psmouse gma500_gfx r8169 sdhci_pci i2c_algo_bit drm_kms_helper pata_sch sdhci syscopyarea sysfillrect sysimgblt fb_sys_fops drm mii fjes video [ 5.998768] CPU: 0 PID: 346 Comm: plymouthd Not tainted 4.4.0-21-generic #37-Ubuntu [ 5.998775] Hardware name: CompuLab CM-iAM/SBC-FITPC2i/CM-iAM/SBC-FITPC2i, BIOS NAPA0001.86C.0000.D.1009141059 09/14/2010 [ 5.998782] task: f20db480 ti: f5a7a000 task.ti: f5a7a000 [ 5.998788] EIP: 0060:[<c17a4592>] EFLAGS: 00010286 CPU: 0 [ 5.998795] EIP is at mutex_lock+0x12/0x30 [ 5.998801] EAX: 206e7676 EBX: 206e7676 ECX: 00000000 EDX: 80000000 [ 5.998807] ESI: 206e754a EDI: 206e754a EBP: f5a7be88 ESP: f5a7be84 [ 5.998813] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 5.998818] CR0: 80050033 CR2: 206e7676 CR3: 335a0480 CR4: 000006f0 [ 5.998823] Stack: [ 5.998828] f3574ce0 f5a7be98 f8531021 f59d2100 f5a0bc00 f5a7beac f8586e50 f5a0bc00 [ 5.998842] f5a0bc00 f5a0bc00 f5a7bebc f8b07039 f19809c0 00000001 f5a7bed4 f851589a [ 5.998857] f74bcc00 00000000 00000000 f5a0bc00 f5a7bf18 f8515c4f 00000000 00000000 [ 5.998870] Call Trace: [ 5.999009] [<f8531021>] drm_modeset_lock_all+0x31/0xb0 [drm] [ 5.999072] [<f8586e50>] drm_fb_helper_restore_fbdev_mode_unlocked+0x20/0x70 [drm_kms_helper] [ 5.999127] [<f8b07039>] psb_driver_lastclose+0x19/0x50 [gma500_gfx] [ 5.999187] [<f851589a>] drm_lastclose+0x2a/0x140 [drm] [ 5.999236] [<f8515c4f>] drm_release+0x29f/0x490 [drm] [ 5.999247] [<c11dc24f>] __fput+0xcf/0x210 [ 5.999255] [<c11dc3cd>] ____fput+0xd/0x10 [ 5.999264] [<c108991f>] task_work_run+0x7f/0xa0 [ 5.999275] [<c1003115>] exit_to_usermode_loop+0xd5/0xe0 [ 5.999284] [<c10039f7>] do_fast_syscall_32+0x147/0x150 [ 5.999295] [<c17a6cd8>] sysenter_past_esp+0x3d/0x61 [ 5.999301] Code: 00 00 c3 8d b6 00 00 00 00 31 c0 5d c3 8d b6 00 00 00 00 8d bf 00 00 00 00 55 89 e5 53 3e 8d 74 26 00 89 c3 e8 70 ef ff ff 89 d8 <f0> ff 08 79 05 e8 74 07 00 00 64 a1 a8 72 c5 c1 89 43 10 5b 5d [ 5.999402] EIP: [<c17a4592>] mutex_lock+0x12/0x30 SS:ESP 0068:f5a7be84 [ 5.999414] CR2: 00000000206e7676 [ 5.999422] ---[ end trace 1d5c4a6d9395cec3 ]--- ----------------------------- I hope that helps now to continue... when I run the pokini with a non-HDMI display I get the graphical gui, not completely because the menues and the like is missing (seems still some components do not work properly), but at least I can login and open some terminal windows. regards hjl -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1567781 Title: unable to handle kernel NULL pointer dereference at 00000134 Status in linux package in Ubuntu: Incomplete Bug description: Problem is found in dmesg output: [ 11.660671] BUG: unable to handle kernel NULL pointer dereference at 00000134 [ 11.660688] IP: [<c17692b2>] mutex_lock+0x12/0x30 [ 11.660706] *pdpt = 0000000033ee5001 *pde = 0000000000000000 [ 11.660714] Oops: 0002 [#1] SMP [ 11.660723] Modules linked in: nfsd auth_rpcgss nfs_acl lockd parport_pc grace ppdev lp sunrpc parport autofs4 hid_generic hid_cherry pata_acpi usbhid hid psmouse gma500_gfx i2c_algo_bit r8169 drm_kms_helper drm sdhci_pci pata_sch sdhci mii video [ 11.660772] CPU: 1 PID: 242 Comm: plymouthd Not tainted 4.2.0-35-generic #40-Ubuntu [ 11.660779] Hardware name: CompuLab CM-iAM/SBC-FITPC2i/CM-iAM/SBC-FITPC2i, BIOS NAPA0001.86C.0000.D.1009141059 09/14/2010 [ 11.660785] task: f5cf08c0 ti: f2364000 task.ti: f2364000 [ 11.660792] EIP: 0060:[<c17692b2>] EFLAGS: 00010286 CPU: 1 [ 11.660798] EIP is at mutex_lock+0x12/0x30 [ 11.660804] EAX: 00000134 EBX: 00000134 ECX: 00000000 EDX: 80000000 [ 11.660810] ESI: 00000000 EDI: 00000000 EBP: f2365ea8 ESP: f2365ea4 [ 11.660815] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 11.660820] CR0: 80050033 CR2: 00000134 CR3: 31a1d540 CR4: 000006f0 [ 11.660824] Stack: [ 11.660828] f19f93a0 f2365ec0 f8586171 f326dea0 f1ad7000 00000000 f1a0a400 f2365ec8 [ 11.660842] f858621f f2365edc f845ff47 f1a0a400 f1a0a400 f1a0a400 f2365eec f84b6019 [ 11.660856] f2365f04 c11b2de4 f2365f04 f856a78a f74d59d0 00000000 00000000 f1a0a400 [ 11.660869] Call Trace: [ 11.660935] [<f8586171>] __drm_modeset_lock_all+0x91/0x130 [drm] [ 11.660986] [<f858621f>] drm_modeset_lock_all+0xf/0x30 [drm] [ 11.661018] [<f845ff47>] drm_fb_helper_restore_fbdev_mode_unlocked+0x17/0x50 [drm_kms_helper] [ 11.661048] [<f84b6019>] psb_driver_lastclose+0x19/0x50 [gma500_gfx] [ 11.661060] [<c11b2de4>] ? kfree+0x134/0x140 [ 11.661110] [<f856a78a>] drm_lastclose+0x2a/0x140 [drm] [ 11.661159] [<f856ab3f>] drm_release+0x29f/0x490 [drm] [ 11.661170] [<c11cd0af>] __fput+0xcf/0x210 [ 11.661179] [<c11cd22d>] ____fput+0xd/0x10 [ 11.661189] [<c10869af>] task_work_run+0x7f/0xa0 [ 11.661200] [<c1012035>] do_notify_resume+0x75/0x80 [ 11.661209] [<c176bbcb>] work_notifysig+0x16/0x1b [ 11.661215] Code: 00 00 c3 8d b6 00 00 00 00 31 c0 5d c3 8d b6 00 00 00 00 8d bf 00 00 00 00 55 89 e5 53 3e 8d 74 26 00 89 c3 e8 60 ef ff ff 89 d8 <f0> ff 08 79 05 e8 74 07 00 00 64 a1 c8 c0 bf c1 89 43 10 5b 5d [ 11.661311] EIP: [<c17692b2>] mutex_lock+0x12/0x30 SS:ESP 0068:f2365ea4 [ 11.661323] CR2: 0000000000000134 [ 11.661332] ---[ end trace 3bb80835d39a3e44 ]--- ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-35-generic 4.2.0-35.40 ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5 Uname: Linux 4.2.0-35-generic i686 ApportVersion: 2.19.1-0ubuntu5 Architecture: i386 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Fri Apr 8 08:21:26 2016 HibernationDevice: RESUME=UUID=fda9b258-61a9-4bc5-974e-738538cee628 InstallationDate: Installed on 2013-07-09 (1003 days ago) InstallationMedia: Lubuntu 13.04 "Raring Ringtail" - Release i386 (20130423.1) MachineType: CompuLab CM-iAM/SBC-FITPC2i ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-35-generic root=UUID=41b7698f-f3fa-4940-8e13-9378c5021e90 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-35-generic N/A linux-backports-modules-4.2.0-35-generic N/A linux-firmware 1.149.3 RfKill: 0: phy0: Wireless LAN Soft blocked: yes Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to wily on 2015-12-23 (106 days ago) dmi.bios.date: 09/14/2010 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: NAPA0001.86C.0000.D.1009141059 dmi.board.name: CM-iAM/SBC-FITPC2i dmi.board.vendor: Intel Corporation dmi.board.version: 1.x dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 1 dmi.chassis.vendor: OEM dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrNAPA0001.86C.0000.D.1009141059:bd09/14/2010:svnCompuLab:pnCM-iAM/SBC-FITPC2i:pvrNotApplicable:rvnIntelCorporation:rnCM-iAM/SBC-FITPC2i:rvr1.x:cvnOEM:ct1:cvrN/A: dmi.product.name: CM-iAM/SBC-FITPC2i dmi.product.version: Not Applicable dmi.sys.vendor: CompuLab To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1567781/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
