[Bug 96603] [IGT] [BXT-P / KBL] vgem_basic / mmap causes segmentation fault (core dumped)
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Jun 21 06:06:51 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=96603
--- Comment #3 from yann <yann.argotti at intel.com> ---
Relevant piece of dmesg is linked to subtest mmap in vgem_basic test:
[ 13.881137] vgem_basic: starting subtest mmap
[ 13.881721] [drm:vgem_gem_dumb_create] Created object of size 4194304
[ 13.881744] ------------[ cut here ]------------
[ 13.882281] kernel BUG at mm/memory.c:1529!
[ 13.882826] invalid opcode: 0000 [#1] SMP
[ 13.883377] Modules linked in: vgem snd_hda_codec_hdmi bnep asix usbnet mii
spi_pxa2xx_platform 8250_dw i2c_designware_platform x86_pkg_temp_thermal
i2c_designware_core intel_powerclamp coretemp kvm_intel kvm irqbypass
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw
gf128mul glue_helper ablk_helper cryptd snd_hda_codec_realtek
snd_hda_codec_generic serio_raw binfmt_misc arc4 nls_iso8859_1 snd_hda_intel
iwlmvm input_leds mac80211 intel_lpss_pci btusb intel_lpss btrtl btbcm btintel
snd_hda_codec snd_hda_core snd_hwdep bluetooth snd_pcm iwlwifi snd_seq_midi
snd_seq_midi_event snd_rawmidi cfg80211 snd_seq snd_seq_device shpchp snd_timer
mei_me snd mei soundcore rfkill_gpio soc_button_array tpm_crb intel_pmc_ipc
mac_hid parport_pc ppdev lp parport autofs4 hid_generic usbhid
[ 13.885582] mmc_block i915 igb drm_kms_helper dca syscopyarea sysfillrect
ptp sysimgblt sdhci_pci fb_sys_fops pps_core sdhci i2c_algo_bit ahci drm
libahci i2c_hid hid video
[ 13.887183] CPU: 1 PID: 1244 Comm: vgem_basic Tainted: G U
4.7.0-rc4-drm-intel-nightly-ww26-commit-f586720+ #1
[ 13.888027] Hardware name: Intel Corp. Broxton P/NOTEBOOK, BIOS
APLKRVPA.X64.0138.B25.1605230512 05/23/2016
[ 13.888908] task: ffff880466bdcc40 ti: ffff88046bdbc000 task.ti:
ffff88046bdbc000
[ 13.889794] RIP: 0010:[<ffffffff811bc43b>] [<ffffffff811bc43b>]
vm_insert_page+0x19b/0x1b0
[ 13.890705] RSP: 0000:ffff88046bdbfd38 EFLAGS: 00010202
[ 13.891627] RAX: 0000000000000001 RBX: ffff880466947da8 RCX:
0000000000000000
[ 13.892569] RDX: 0000000000000002 RSI: 00007f15cc0b9000 RDI:
ffff880467a01c68
[ 13.893509] RBP: ffff88046bdbfd68 R08: ffff88046d37f100 R09:
ffff88046bdbfe58
[ 13.894470] R10: 00003fffffe00000 R11: 0000000000000000 R12:
ffffea001176eb40
[ 13.895450] R13: 00007f15cc0b9000 R14: ffff880466947da8 R15:
0000000000000002
[ 13.896436] FS: 00007f15ce7ca740(0000) GS:ffff88047f880000(0000)
knlGS:0000000000000000
[ 13.897434] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 13.898444] CR2: 00007f15cc0b9000 CR3: 000000046bd21000 CR4:
00000000003406e0
[ 13.899480] Stack:
[ 13.900517] 0000000000000000 00007f15cc0b9000 ffff88046bdbfe58
0000000000100000
[ 13.901579] ffff880466947da8 0000000000000002 ffff88046bdbfd78
ffffffffc052d12b
[ 13.902663] ffff88046bdbfde0 ffffffff811b8976 024200ca00000055
0000000000100000
[ 13.903766] Call Trace:
[ 13.904861] [<ffffffffc052d12b>] vgem_gem_fault+0x4b/0x90 [vgem]
[ 13.905974] [<ffffffff811b8976>] __do_fault+0x66/0x130
[ 13.907095] [<ffffffff811b9bc8>] ? __pte_alloc+0xb8/0x110
[ 13.908183] [<ffffffff811bd33d>] handle_mm_fault+0x35d/0x1c90
[ 13.909231] [<ffffffff811c4c00>] ? do_mmap+0x440/0x540
[ 13.910260] [<ffffffff81374018>] ? common_mmap+0x48/0x50
[ 13.911290] [<ffffffff81374066>] ? apparmor_mmap_file+0x16/0x20
[ 13.912321] [<ffffffff81067022>] __do_page_fault+0x1e2/0x4d0
[ 13.913331] [<ffffffff81067332>] do_page_fault+0x22/0x30
[ 13.914353] [<ffffffff81800438>] page_fault+0x28/0x30
[ 13.915370] Code: 83 c4 08 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 b8 f2 ff
ff ff c3 48 8b 7d d0 c6 07 00 0f 1f 40 00 b8 f0 ff ff ff e9 06 ff ff ff <0f> 0b
0f 0b b8 ea ff ff ff c3 66 66 2e 0f 1f 84 00 00 00 00 00
[ 13.916560] RIP [<ffffffff811bc43b>] vm_insert_page+0x19b/0x1b0
[ 13.917639] RSP <ffff88046bdbfd38>
[ 13.918754] ---[ end trace 22452399a79e67b6 ]---
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