Re: [Bug 1567781] Re: unable to handle kernel NULL pointer dereference at 00000134
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: [] mutex_lock+0x12/0x30 [5.998704] *pdpt = 320fb001 *pde = [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..D.1009141059 09/14/2010 [5.998782] task: f20db480 ti: f5a7a000 task.ti: f5a7a000 [5.998788] EIP: 0060:[] EFLAGS: 00010286 CPU: 0 [5.998795] EIP is at mutex_lock+0x12/0x30 [5.998801] EAX: 206e7676 EBX: 206e7676 ECX: EDX: 8000 [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: 06f0 [5.998823] Stack: [5.998828] f3574ce0 f5a7be98 f8531021 f59d2100 f5a0bc00 f5a7beac f8586e50 f5a0bc00 [5.998842] f5a0bc00 f5a0bc00 f5a7bebc f8b07039 f19809c0 0001 f5a7bed4 f851589a [5.998857] f74bcc00 f5a0bc00 f5a7bf18 f8515c4f [5.998870] Call Trace: [5.999009] [] drm_modeset_lock_all+0x31/0xb0 [drm] [5.999072] [] drm_fb_helper_restore_fbdev_mode_unlocked+0x20/0x70 [drm_kms_helper] [5.999127] [] psb_driver_lastclose+0x19/0x50 [gma500_gfx] [5.999187] [] drm_lastclose+0x2a/0x140 [drm] [5.999236] [] drm_release+0x29f/0x490 [drm] [5.999247] [] __fput+0xcf/0x210 [5.999255] [] fput+0xd/0x10 [5.999264] [] task_work_run+0x7f/0xa0 [5.999275] [] exit_to_usermode_loop+0xd5/0xe0 [5.999284] [] do_fast_syscall_32+0x147/0x150 [5.999295] [] 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 ff 08 79 05 e8 74 07 00 00 64 a1 a8 72 c5 c1 89 43 10 5b 5d [5.999402] EIP: [] mutex_lock+0x12/0x30 SS:ESP 0068:f5a7be84 [5.999414] CR2: 206e7676 [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 0134 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
Re: [Bug 1567781] Re: unable to handle kernel NULL pointer dereference at 00000134
Dear Chris and Uli, I have installed Lubuntu 16.04 on another disk with pokini1. Running kernel 4.4.0 does not produce the bug anymore. But, the Gui is still broken, just no more kernel NULL pointer dereference error. I had to change the display also and it is not HDMI. I had gotten following info from Uli: cause of problem is the GMA500 driver which causes the issues when used with an HDMI display and the 1920x1080 resolution. So far I was able to verify that. The issue is related to the HDMI resolution and hence the driver. My bios has two options for the shared memory for the display: - 128 MiB and - 256 MiB I use since the very first installation the 256MiB option in then which never gave issues. Seems that the current GMA500 driver needs more than 256 MiB or some checks on available memory are not done properly... I shall try now to blacklist the GMA500 driver and will let you know Thahnks for your help and patience. 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 0134 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
Re: [Bug 1567781] Re: unable to handle kernel NULL pointer dereference at 00000134
On Tue, Jun 07, 2016 at 03:57:55AM -, Christopher M. Penalver wrote: > hjl, could you please test the latest mainline kernel (4.7-rc2) and > advise to the results? > Chris, I have installed the 4.7rc2 kernel like 4.6rc6 before but unfortunately the new kernel ist not started, the grub menu has the 4.7rc2 entry but does not offer it during start of the system. 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 0134 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
Re: [Bug 1567781] Re: unable to handle kernel NULL pointer dereference at 00000134
On Sat, Jun 04, 2016 at 12:19:56PM -, Christopher M. Penalver wrote: > hjl, could you please provide the full computer manufacturer and model > as noted on the sticker of the computer itself (not from the Bug > Description)? > > ** Tags added: apport-bug i386 wily > Chris, I tried to read the printing on the processor chip. it is not readable, processor is soldered to the downside of the board... the BIOS summary tell that I use a Intel ATOM Z550, the modell is a POKINI Z manufactured by exone company. ( the current description from the internet tells the the pokiniZ has a ATOM Z530 build in). I hope this helps. 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 0134 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
