update, this is caused by efl/src/lib/ecore_x/xlib/ecore_x_vsync.c "#define ECORE_X_VSYNC_DRM 1". If you remove that line (or #undef the sym), it works, now to find out the actual call that triggers it to produce a test case for them...
On Wed, Aug 6, 2014 at 12:38 PM, Gustavo Sverzut Barbieri <barbi...@gmail.com> wrote: > sorry for the noise, this has nothing to do with Enlightenment or new > vsync. I've disabled it and still happens, we're just triggering a bug > in drm. > > if you suffer from this problem just remove virtualbox-guest-modules > and you'll fallback to fbdev without problems (just setting X to use > fbdev does not help, you need to remove vboxvideo.ko so it's never > loaded). > > On Wed, Aug 6, 2014 at 11:42 AM, Gustavo Sverzut Barbieri > <barbi...@gmail.com> wrote: >> Hi all, >> >> Just a heads up that recent Enlightenment (GIT) is causing problems >> with ArchLinux vanilla kernel (3.15.8-1-ARCH), at least running inside >> VirtualBox 4.3.14. >> >> I'm trying to isolate the problem to report that to kernel guys since >> a Kernel Oops is always a kernel bug, until then watch out if you want >> to update and run similar setup. >> >> The relevant dmesg part is: >> >> [ 7.142526] BUG: unable to handle kernel NULL pointer dereference at >> (null) >> [ 7.142532] IP: [< (null)>] (null) >> [ 7.142534] *pde = 00000000 >> [ 7.142536] Oops: 0000 [#1] PREEMPT SMP >> [ 7.142539] Modules linked in: ext4 crc16 mbcache jbd2 ppdev >> snd_intel8x0 snd_ac97_codec intel_rapl microcode ac97_bus pcspkr >> snd_pcm psmouse serio_raw snd_timer i2c_piix4 joydev mousedev snd >> soundcore mac_hid e1000 parport_pc parport floppy(+) ac battery >> intel_agp intel_gtt button evdev vboxvideo(O) drm agpgart i2c_core >> vboxsf(O) vboxguest(O) hid_generic usbhid hid crc32c_generic btrfs xor >> raid6_pq sd_mod crc_t10dif crct10dif_common atkbd libps2 ohci_pci >> ohci_hcd ehci_pci ehci_hcd ahci libahci libata scsi_mod usbcore >> usb_common i8042 serio >> [ 7.142562] CPU: 0 PID: 254 Comm: enlightenment Tainted: G >> O 3.15.8-1-ARCH #1 >> [ 7.142564] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS >> VirtualBox 12/01/2006 >> [ 7.142566] task: f39fd2c0 ti: f3a58000 task.ti: f3a58000 >> [ 7.142568] EIP: 0060:[<00000000>] EFLAGS: 00210046 CPU: 0 >> [ 7.142570] EIP is at 0x0 >> [ 7.142572] EAX: f5228400 EBX: f5228400 ECX: f8b7d140 EDX: 00000000 >> [ 7.142573] ESI: f9fdb560 EDI: 00000000 EBP: f3a59de4 ESP: f3a59d90 >> [ 7.142574] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 >> [ 7.142576] CR0: 80050033 CR2: 00000000 CR3: 33a5c000 CR4: 000006d0 >> [ 7.142581] Stack: >> [ 7.142583] f9fda8c2 f53a1d90 f5228400 f5228438 f5121cc0 00000000 >> f539f9c0 f3a59db4 >> [ 7.142586] f9fdd1e0 00200046 f52284e8 f52284ea 00200246 00000000 >> 00000000 f5b75024 >> [ 7.142589] f539f9c0 c29a0d46 f5228400 f9fdb560 04000001 f3a59e44 >> f9fdb5d8 f57cf948 >> [ 7.142592] Call Trace: >> [ 7.142601] [<f9fda8c2>] ? drm_vblank_get+0xd2/0x240 [drm] >> [ 7.142607] [<f9fdd1e0>] ? drm_minor_release+0x10/0x20 [drm] >> [ 7.142613] [<f9fdb560>] ? drm_modeset_ctl+0x70/0x70 [drm] >> [ 7.142617] [<f9fdb5d8>] drm_wait_vblank+0x78/0x5e0 [drm] >> [ 7.142622] [<c12320e0>] ? lockref_put_or_lock+0x20/0x40 >> [ 7.142625] [<c11835f6>] ? mntput_no_expire+0x26/0x160 >> [ 7.142629] [<f9fdb560>] ? drm_modeset_ctl+0x70/0x70 [drm] >> [ 7.142633] [<f9fd7585>] drm_ioctl+0x1f5/0x560 [drm] >> [ 7.142637] [<f9fdb560>] ? drm_modeset_ctl+0x70/0x70 [drm] >> [ 7.142641] [<c1175d2d>] ? do_filp_open+0x3d/0xa0 >> [ 7.142645] [<f9fd7390>] ? drm_copy_field+0x70/0x70 [drm] >> [ 7.142648] [<c11782c2>] do_vfs_ioctl+0x302/0x4f0 >> [ 7.142651] [<c11713bd>] ? final_putname+0x1d/0x40 >> [ 7.142653] [<c11713bd>] ? final_putname+0x1d/0x40 >> [ 7.142656] [<c10ad8f0>] ? ktime_get_ts+0x40/0x140 >> [ 7.142658] [<c1181547>] ? __fget+0x57/0x90 >> [ 7.142661] [<c1178530>] SyS_ioctl+0x80/0x90 >> [ 7.142665] [<c14575e3>] sysenter_do_call+0x12/0x12 >> [ 7.142666] Code: Bad EIP value. >> [ 7.142669] EIP: [<00000000>] 0x0 SS:ESP 0068:f3a59d90 >> [ 7.142672] CR2: 0000000000000000 >> [ 7.142674] ---[ end trace 9c935fa0060b0fa8 ]--- >> [ 7.142677] note: enlightenment[254] exited with preempt_count 2 >> >> If someone has the same problem running outside of VirtualBox let me >> know, likely kernel guys will not look at it since it's "tainted", >> however I don't think there is any relation to that. >> >> -- >> Gustavo Sverzut Barbieri >> -------------------------------------- >> Mobile: +55 (19) 99225-2202 >> Contact: http://www.gustavobarbieri.com.br/contact > > > > -- > Gustavo Sverzut Barbieri > -------------------------------------- > Mobile: +55 (19) 99225-2202 > Contact: http://www.gustavobarbieri.com.br/contact -- Gustavo Sverzut Barbieri -------------------------------------- Mobile: +55 (19) 99225-2202 Contact: http://www.gustavobarbieri.com.br/contact ------------------------------------------------------------------------------ Infragistics Professional Build stunning WinForms apps today! 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