Dear Chris and Uli, I booted the pokini now with HDMI and the issue is back:
----------------------------------------- ... [ 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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1567781 Title: unable to handle kernel NULL pointer dereference at 00000134 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1567781/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
