Hi Shirish, looks like somebody is calling fork() while a TTM BO is illegally mapped with the wrong file mapping. What application is this and what does this application tries to do with the kernel driver? Regards, Christian. Am 13.11.2017 um 11:56 schrieb S, Shirish: > > Hi All, > > I find the below WARN_ON() message while rendering on eDP in ST > platform with > https://cgit.freedesktop.org/~airlied/linux/log/?h=drm-next-amd-dc-staging > <https://cgit.freedesktop.org/%7Eairlied/linux/log/?h=drm-next-amd-dc-staging> > branch: > > WARNING kernel: [Â 344.159552] WARNING: CPU: 1 PID: 899 at > /mnt/host/source/src/third_party/kernel/v4.12/drivers/gpu/drm/ttm/ttm_bo_ > > vm.c:287 ttm_bo_vm_open+0x2b/0x38 > > [Â 344.159552] Modules linked in: ccm cmac rfcomm uinput > rtsx_pci_sdmmc xt_nat lzo lzo_compress ath10k_pci ath10k_co > > re i2c_piix4 mac80211 zram bridge designware_i2s stp ath rtsx_pci llc > acpi_als ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 > nf_nat fuse xt_mark cfg8 > > 0211 ip6table_filter iio_trig_sysfs cros_ec_sensors > industrialio_triggered_buffer kfifo_buf cros_ec_sensors_core > industrialio ax88179_178a usbnet mii btusb btrtl btb > > cm btintel bluetooth ecdh_generic joydev uvcvideo videobuf2_vmalloc > videobuf2_memops videobuf2_v4l2 videobuf2_core > > WARNING kernel: [Â 344.159594] CPU: 1 PID: 899 Comm: TaskSchedulerSi > Tainted: GÂ Â Â Â Â Â Â W 4.14.0-00021-g4448b9a68413 #467 > > WARNING kernel: [Â 344.159595] Hardware name: Google Kahlee/Kahlee, > BIOS Google_Kahlee.10122.0.0 11/10/2017 > > WARNING kernel: [Â 344.159597] task: ffff967e1f750000 task.stack: > ffffa4aa00d78000 > > WARNING kernel: [Â 344.159600] RIP: 0010:ttm_bo_vm_open+0x2b/0x38 > > WARNING kernel: [Â 344.159602] RSP: 0018:ffffa4aa00d7bdb0 EFLAGS: 00010202 > > WARNING kernel: [Â 344.159605] RAX: ffff967d6505e858 RBX: > ffff967da2415100 RCX: ffff967e2a3b2830 > > WARNING kernel: [Â 344.159606] RDX: ffff967da679bb40 RSI: > ffff967e29f39510 RDI: ffff967d653682e0 > > WARNING kernel: [Â 344.159608] RBP: ffffa4aa00d7bdb0 R08: > ffffffff87932194 R09: 0000000000000000 > > WARNING kernel: [Â 344.159610] R10: 000000000001e1b1 R11: > 000000000001e168 R12: ffff967da6789d00 > > WARNING kernel: [Â 344.159611] R13: ffff967e274e3b80 R14: > ffff967d653682e0 R15: 0000000000000000 > > WARNING kernel: [Â 344.159614] FS: 00007ddd0559a700(0000) > GS:ffff967e2ed00000(0000) knlGS:0000000000000000 > > WARNING kernel: [Â 344.159616] CS:Â 0010 DS: 0000 ES: 0000 CR0: > 0000000080050033 > > WARNING kernel: [Â 344.159618] CR2: 0000162eb0bebb18 CR3: > 000000012133e000 CR4: 00000000001406e0 > > WARNING kernel: [Â 344.159619] Call Trace: > > WARNING kernel: [Â 344.159623] copy_process.part.49+0xf47/0x186e > > WARNING kernel: [Â 344.159627] _do_fork+0xcd/0x2d1 > > WARNING kernel: [Â 344.159631]Â ? __might_fault+0x35/0x37 > > WARNING kernel: [Â 344.159634]Â ? _copy_to_user+0x5e/0x6b > > WARNING kernel: [Â 344.159637] SyS_clone+0x19/0x1b > > WARNING kernel: [Â 344.159639] do_syscall_64+0x52/0x61 > > WARNING kernel: [Â 344.159642] entry_SYSCALL64_slow_path+0x25/0x25 > > WARNING kernel: [Â 344.159644] RIP: 0033:0x7ddd1224be3a > > WARNING kernel: [Â 344.159646] RSP: 002b:00007ddd05598ce0 EFLAGS: > 00000246 ORIG_RAX: 0000000000000038 > > WARNING kernel: [Â 344.159649] RAX: ffffffffffffffda RBX: > 00007ddd05598ce0 RCX: 00007ddd1224be3a > > WARNING kernel: [Â 344.159651] RDX: 0000000000000000 RSI: > 0000000000000000 RDI: 0000000001200011 > > WARNING kernel: [Â 344.159652] RBP: 00007ddd05598d50 R08: > 00000000000002e0 R09: 0000000000000383 > > WARNING kernel: [Â 344.159654] R10: 00007ddd0559a9d0 R11: > 0000000000000246 R12: 0000000000000000 > > WARNING kernel: [Â 344.159656] R13: 00007ddd05598d00 R14: > 00007ddd05598f01 R15: 0000162eb3b438a0 > > WARNING kernel: [Â 344.159658] Code: 0f 1f 44 00 00 55 48 8b 87 a8 00 > 00 00 48 8b 97 a0 00 00 00 48 89 e5 48 8b 48 08 48 8b b2 30 01 > > 00 00 48 39 b1 68 08 00 00 74 02 <0f> ff 48 8d 78 30 e8 59 ff ff ff 5d > c3 0f 1f 44 00 00 55 48 89 > > Does anybody know the fix for it? > > Regards, > > Shirish S > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20171113/13471235/attachment-0001.html>
