HEAD is now at 5a2aa64... 0day head guard for 'devel-roam-i386-201409052138' git checkout 69e273c0b0a3c337a521d083374c918dc52c666f ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linux-devel:devel-roam-i386-201409052138:69e273c0b0a3c337a521d083374c918dc52c666f:bisect-linux 2014-09-05 22:03:24 69e273c0b0a3c337a521d083374c918dc52c666f reuse /kernel/i386-randconfig-r3-0905/69e273c0b0a3c337a521d083374c918dc52c666f/vmlinuz-3.17.0-rc3 2014-09-05 22:03:24 detecting boot state .. 18. 19. 20 SUCCESS bisect: good commit 69e273c0b0a3c337a521d083374c918dc52c666f git bisect start 5a2aa64d4eafdaef278ff495025c59a5cd96eafb 69e273c0b0a3c337a521d083374c918dc52c666f -- /c/kernel-tests/linear-bisect: ["-b", "5a2aa64d4eafdaef278ff495025c59a5cd96eafb", "-g", "69e273c0b0a3c337a521d083374c918dc52c666f", "/c/kernel-tests/bisect-test-boot-failure.sh", "/c/boot-bisect/linux/obj-bisect"] Bisecting: 1198 revisions left to test after this (roughly 11 steps) [82c3b0c30522510fcee89a14302aeb06df65f8d1] Merge 'spi/fix/rockchip' into devel-roam-i386-201409052138 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linux-devel:devel-roam-i386-201409052138:82c3b0c30522510fcee89a14302aeb06df65f8d1:bisect-linux 2014-09-05 22:06:56 82c3b0c30522510fcee89a14302aeb06df65f8d1 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r3-0905-82c3b0c30522510fcee89a14302aeb06df65f8d1 Check for kernel in /kernel/i386-randconfig-r3-0905/82c3b0c30522510fcee89a14302aeb06df65f8d1 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r3-0905-82c3b0c30522510fcee89a14302aeb06df65f8d1 waiting for completion of /kbuild-tests/build-queue/roam-i386/i386-randconfig-r3-0905-82c3b0c30522510fcee89a14302aeb06df65f8d1 kernel: /kernel/i386-randconfig-r3-0905/82c3b0c30522510fcee89a14302aeb06df65f8d1/vmlinuz-3.17.0-rc3-00470-g82c3b0c 2014-09-05 22:40:56 detecting boot state . 4 19 20 SUCCESS Bisecting: 609 revisions left to test after this (roughly 10 steps) [259fc4e3fc3c3f073edd07564eb82433d7c86cc7] Merge 'drm-intel/drm-intel-nightly' into devel-roam-i386-201409052138 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linux-devel:devel-roam-i386-201409052138:259fc4e3fc3c3f073edd07564eb82433d7c86cc7:bisect-linux 2014-09-05 22:42:57 259fc4e3fc3c3f073edd07564eb82433d7c86cc7 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r3-0905-259fc4e3fc3c3f073edd07564eb82433d7c86cc7 Check for kernel in /kernel/i386-randconfig-r3-0905/259fc4e3fc3c3f073edd07564eb82433d7c86cc7 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r3-0905-259fc4e3fc3c3f073edd07564eb82433d7c86cc7 waiting for completion of /kbuild-tests/build-queue/roam-i386/i386-randconfig-r3-0905-259fc4e3fc3c3f073edd07564eb82433d7c86cc7 kernel: /kernel/i386-randconfig-r3-0905/259fc4e3fc3c3f073edd07564eb82433d7c86cc7/vmlinuz-3.17.0-rc3-00997-g259fc4e 2014-09-05 23:45:57 detecting boot state .. 20 SUCCESS Bisecting: 82 revisions left to test after this (roughly 7 steps) [70d805ad73fa5ee4d860ff10f4ff98050c01c2d9] Merge 'hch-scsi-queue/core-for-3.18' into devel-roam-i386-201409052138 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linux-devel:devel-roam-i386-201409052138:70d805ad73fa5ee4d860ff10f4ff98050c01c2d9:bisect-linux 2014-09-05 23:47:27 70d805ad73fa5ee4d860ff10f4ff98050c01c2d9 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r3-0905-70d805ad73fa5ee4d860ff10f4ff98050c01c2d9 Check for kernel in /kernel/i386-randconfig-r3-0905/70d805ad73fa5ee4d860ff10f4ff98050c01c2d9 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r3-0905-70d805ad73fa5ee4d860ff10f4ff98050c01c2d9 waiting for completion of /kbuild-tests/build-queue/lkp-hsx01-consumer/i386-randconfig-r3-0905-70d805ad73fa5ee4d860ff10f4ff98050c01c2d9 kernel: /kernel/i386-randconfig-r3-0905/70d805ad73fa5ee4d860ff10f4ff98050c01c2d9/vmlinuz-3.17.0-rc3-01019-g70d805a 2014-09-06 00:50:27 detecting boot state ................. TEST FAILURE [ 1.412174] [drm] radeon kernel modesetting enabled. [ 1.413218] [TTM] Zone kernel: Available graphics memory: 134870 kiB [ 1.413710] [TTM] Initializing pool allocator [ 1.414303] INFO: trying to register non-static key. [ 1.414691] the code is fine but needs lockdep annotation. [ 1.415096] turning off the locking correctness validator. [ 1.415500] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc3-01019-g70d805a #1 [ 1.416049] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 [ 1.416049] 00000000 00000000 cfc49c08 d0d9aebd d1797d38 cfc49c7c d007b771 d10a1fb8 [ 1.416049] 0940b205 cfc40000 cfc49c90 d0079fc6 cfc40000 502c816a cfc40000 502c816a [ 1.416049] 00000005 01c40000 00000000 ca7c8848 ca7c8848 00000000 d1767760 cfc405d0 [ 1.416049] Call Trace: [ 1.416049] [] dump_stack+0x48/0x60 [ 1.416049] [] __lock_acquire+0x1c21/0x1da0 [ 1.416049] [] ? __lock_acquire+0x476/0x1da0 [ 1.416049] [] ? __lock_is_held+0x46/0x60 [ 1.416049] [] lock_acquire+0x91/0xc0 [ 1.416049] [] ? drm_modeset_lock+0x31/0xf0 [ 1.416049] [] __ww_mutex_lock+0x6c/0x780 [ 1.416049] [] ? drm_modeset_lock+0x31/0xf0 [ 1.416049] [] ? drm_modeset_lock+0x31/0xf0 [ 1.416049] [] ? drm_modeset_lock+0x31/0xf0 [ 1.416049] [] drm_modeset_lock+0x31/0xf0 [ 1.416049] [] drm_modeset_lock_all_crtcs+0x34/0x50 [ 1.416049] [] __drm_modeset_lock_all+0xa4/0xe0 [ 1.416049] [] drm_modeset_lock_all+0xa/0x30 [ 1.416049] [] drm_encoder_init+0x1b/0xe0 [ 1.416049] [] ? kmem_cache_alloc+0x98/0x190 [ 1.416049] [] ? cirrus_modeset_init+0xe1/0x1c0 [ 1.416049] [] cirrus_modeset_init+0x107/0x1c0 [ 1.416049] [] cirrus_driver_load+0x57/0x120 [ 1.416049] [] drm_dev_register+0x9e/0x100 [ 1.416049] [] drm_get_pci_dev+0x91/0x1c0 [ 1.416049] [] ? trace_hardirqs_on+0xb/0x10 [ 1.416049] [] ? mutex_unlock+0x8/0x10 [ 1.416049] [] cirrus_pci_probe+0xac/0xf0 [ 1.416049] [] pci_device_probe+0x77/0xe0 [ 1.416049] [] ? sysfs_create_link+0x20/0x40 [ 1.416049] [] driver_probe_device+0x73/0x230 [ 1.416049] [] ? pci_match_device+0xc2/0xf0 [ 1.416049] [] __driver_attach+0x91/0xa0 [ 1.416049] [] ? __device_attach+0x50/0x50 [ 1.416049] [] bus_for_each_dev+0x4f/0x80 [ 1.416049] [] driver_attach+0x19/0x20 [ 1.416049] [] ? __device_attach+0x50/0x50 [ 1.416049] [] bus_add_driver+0x137/0x1f0 [ 1.416049] [] ? mgag200_init+0x22/0x22 [ 1.416049] [] ? mgag200_init+0x22/0x22 [ 1.416049] [] driver_register+0x54/0xe0 [ 1.416049] [] __pci_register_driver+0x45/0x50 [ 1.416049] [] drm_pci_init+0xea/0x110 [ 1.416049] [] ? trace_hardirqs_on+0xb/0x10 [ 1.416049] [] ? mgag200_init+0x22/0x22 [ 1.416049] [] cirrus_init+0x20/0x22 [ 1.416049] [] do_one_initcall+0x16a/0x179 [ 1.416049] [] ? parse_args+0x1e0/0x3e0 [ 1.416049] [] kernel_init_freeable+0xed/0x16a [ 1.416049] [] kernel_init+0xb/0xe0 [ 1.416049] [] ret_from_kernel_thread+0x21/0x30 [ 1.416049] [] ? rest_init+0x120/0x120 [ 1.437197] BUG: unable to handle kernel NULL pointer dereference at (null) [ 1.437793] IP: [] __ww_mutex_lock+0xfa/0x780 [ 1.438195] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 1.438661] Oops: 0002 [#1] SMP DEBUG_PAGEALLOC [ 1.439034] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc3-01019-g70d805a #1 [ 1.439601] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 [ 1.440357] task: cfc40000 ti: cfc48000 task.ti: cfc48000 [ 1.440768] EIP: 0060:[] EFLAGS: 00010082 CPU: 0 [ 1.441179] EIP is at __ww_mutex_lock+0xfa/0x780 [ 1.441188] EAX: 00000000 EBX: cbc792c0 ECX: ca7c8834 EDX: cfc49cdc [ 1.441188] ESI: ca7c8810 EDI: ca7c8814 EBP: cfc49cf8 ESP: cfc49cb4 [ 1.441188] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 1.441188] CR0: 8005003b CR2: 00000000 CR3: 11362000 CR4: 000006b0 [ 1.441188] Stack: [ 1.441188] 00000000 00000001 cbc792d8 d065fa51 d065fa51 ca7c8848 00000001 cfc40000 [ 1.441188] cbc792c0 00000246 ca7c8834 00000000 11111111 cfc49cdc cbc792c0 ca7c8810 [ 1.441188] cbc792c0 cfc49d0c d065fa51 ca7c8800 cfd3fc00 cbc792c0 cfc49d20 d065fce4 [ 1.441188] Call Trace: [ 1.441188] [] ? drm_modeset_lock+0x31/0xf0 [ 1.441188] [] ? drm_modeset_lock+0x31/0xf0 [ 1.441188] [] drm_modeset_lock+0x31/0xf0 [ 1.441188] [] drm_modeset_lock_all_crtcs+0x34/0x50 [ 1.441188] [] __drm_modeset_lock_all+0xa4/0xe0 [ 1.441188] [] drm_modeset_lock_all+0xa/0x30 [ 1.441188] [] drm_encoder_init+0x1b/0xe0 [ 1.441188] [] ? kmem_cache_alloc+0x98/0x190 [ 1.441188] [] ? cirrus_modeset_init+0xe1/0x1c0 [ 1.441188] [] cirrus_modeset_init+0x107/0x1c0 [ 1.441188] [] cirrus_driver_load+0x57/0x120 [ 1.441188] [] drm_dev_register+0x9e/0x100 [ 1.441188] [] drm_get_pci_dev+0x91/0x1c0 [ 1.441188] [] ? trace_hardirqs_on+0xb/0x10 [ 1.441188] [] ? mutex_unlock+0x8/0x10 [ 1.441188] [] cirrus_pci_probe+0xac/0xf0 [ 1.441188] [] pci_device_probe+0x77/0xe0 [ 1.441188] [] ? sysfs_create_link+0x20/0x40 [ 1.441188] [] driver_probe_device+0x73/0x230 [ 1.441188] [] ? pci_match_device+0xc2/0xf0 [ 1.441188] [] __driver_attach+0x91/0xa0 [ 1.441188] [] ? __device_attach+0x50/0x50 [ 1.441188] [] bus_for_each_dev+0x4f/0x80 [ 1.441188] [] driver_attach+0x19/0x20 [ 1.441188] [] ? __device_attach+0x50/0x50 [ 1.441188] [] bus_add_driver+0x137/0x1f0 [ 1.441188] [] ? mgag200_init+0x22/0x22 [ 1.441188] [] ? mgag200_init+0x22/0x22 [ 1.441188] [] driver_register+0x54/0xe0 [ 1.441188] [] __pci_register_driver+0x45/0x50 [ 1.441188] [] drm_pci_init+0xea/0x110 [ 1.441188] [] ? trace_hardirqs_on+0xb/0x10 [ 1.441188] [] ? mgag200_init+0x22/0x22 [ 1.441188] [] cirrus_init+0x20/0x22 [ 1.441188] [] do_one_initcall+0x16a/0x179 [ 1.441188] [] ? parse_args+0x1e0/0x3e0 [ 1.441188] [] kernel_init_freeable+0xed/0x16a [ 1.441188] [] kernel_init+0xb/0xe0 [ 1.441188] [] ret_from_kernel_thread+0x21/0x30 [ 1.441188] [] ? rest_init+0x120/0x120 [ 1.441188] Code: 55 e4 89 f0 e8 28 c1 2c ff 8b 45 d8 8d 55 e4 8b 48 04 89 f0 e8 58 c3 2c ff 8b 46 28 8d 4e 24 8d 55 e4 89 56 28 89 4d e4 89 45 e8 <89> 10 8b 45 d8 89 4d d4 89 45 ec 8d 74 26 00 8d bc 27 00 00 00 [ 1.441188] EIP: [] __ww_mutex_lock+0xfa/0x780 SS:ESP 0068:cfc49cb4 [ 1.441188] CR2: 0000000000000000 [ 1.441188] ---[ end trace 066b96658932ba35 ]--- [ 1.441188] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-r3-0905/70d805ad73fa5ee4d860ff10f4ff98050c01c2d9/dmesg-quantal-ivb41-19:20140906005849:i386-randconfig-r3-0905:: 0:1:1 all_good:bad:all_bad boots 2014-09-06 00:58:59 REPEAT COUNT: 20 # /c/boot-bisect/linux/obj-bisect/.repeat Bisecting: 18 revisions left to test after this (roughly 5 steps) [16cd192c2100085aa6ce04ec186fe62346a3b173] Merge 'drm/drm-mst-dell-30-hacks' into devel-roam-i386-201409052138 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linux-devel:devel-roam-i386-201409052138:16cd192c2100085aa6ce04ec186fe62346a3b173:bisect-linux 2014-09-06 00:58:59 16cd192c2100085aa6ce04ec186fe62346a3b173 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r3-0905-16cd192c2100085aa6ce04ec186fe62346a3b173 Check for kernel in /kernel/i386-randconfig-r3-0905/16cd192c2100085aa6ce04ec186fe62346a3b173 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r3-0905-16cd192c2100085aa6ce04ec186fe62346a3b173 waiting for completion of /kbuild-tests/build-queue/roam-i386/i386-randconfig-r3-0905-16cd192c2100085aa6ce04ec186fe62346a3b173 kernel: /kernel/i386-randconfig-r3-0905/16cd192c2100085aa6ce04ec186fe62346a3b173/vmlinuz-3.17.0-rc3-01008-g16cd192 2014-09-06 01:27:59 detecting boot state .. 2. 10 16 19 20 SUCCESS Bisecting: 7 revisions left to test after this (roughly 4 steps) [31c010b13c93e6a7e8553be9b1d885b61df434b4] Merge 'drm-intel/topic/core-stuff' into devel-roam-i386-201409052138 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linux-devel:devel-roam-i386-201409052138:31c010b13c93e6a7e8553be9b1d885b61df434b4:bisect-linux 2014-09-06 01:32:00 31c010b13c93e6a7e8553be9b1d885b61df434b4 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r3-0905-31c010b13c93e6a7e8553be9b1d885b61df434b4 Check for kernel in /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r3-0905-31c010b13c93e6a7e8553be9b1d885b61df434b4 waiting for completion of /kbuild-tests/build-queue/roam-i386/i386-randconfig-r3-0905-31c010b13c93e6a7e8553be9b1d885b61df434b4 kernel: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/vmlinuz-3.17.0-rc3-01010-g31c010b 2014-09-06 01:50:00 detecting boot state 1 TEST FAILURE [ 1.705109] [drm] radeon kernel modesetting enabled. [ 1.706772] [TTM] Zone kernel: Available graphics memory: 134874 kiB [ 1.707591] [TTM] Initializing pool allocator [ 1.708562] INFO: trying to register non-static key. [ 1.709167] the code is fine but needs lockdep annotation. [ 1.709848] turning off the locking correctness validator. [ 1.710513] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc3-01010-g31c010b #2 [ 1.711432] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 [ 1.712160] 00000000 00000000 d1c49c08 cc19adcd ccb92ce0 d1c49c7c cb47b771 cc4a1e1c [ 1.712160] 0950b205 d1c40000 d1c49c90 cb479fc6 d1c40000 542c816a d1c40000 542c816a [ 1.712160] 00000005 01c40000 00000000 d1d3b048 d1d3b048 00000000 ccb74918 d1c405d0 [ 1.712160] Call Trace: [ 1.712160] [] dump_stack+0x48/0x60 [ 1.712160] [] __lock_acquire+0x1c21/0x1da0 [ 1.712160] [] ? __lock_acquire+0x476/0x1da0 [ 1.712160] [] ? __lock_is_held+0x46/0x60 [ 1.712160] [] lock_acquire+0x91/0xc0 [ 1.712160] [] ? drm_modeset_lock+0x31/0xf0 [ 1.712160] [] __ww_mutex_lock+0x6c/0x780 [ 1.712160] [] ? drm_modeset_lock+0x31/0xf0 [ 1.712160] [] ? drm_modeset_lock+0x31/0xf0 [ 1.712160] [] ? drm_modeset_lock+0x31/0xf0 [ 1.712160] [] drm_modeset_lock+0x31/0xf0 [ 1.712160] [] drm_modeset_lock_all_crtcs+0x34/0x50 [ 1.712160] [] __drm_modeset_lock_all+0xa4/0xe0 [ 1.712160] [] drm_modeset_lock_all+0xa/0x30 [ 1.712160] [] drm_encoder_init+0x1b/0xe0 [ 1.712160] [] ? kmem_cache_alloc+0x98/0x190 [ 1.712160] [] ? cirrus_modeset_init+0xe1/0x1c0 [ 1.712160] [] cirrus_modeset_init+0x107/0x1c0 [ 1.712160] [] cirrus_driver_load+0x57/0x120 [ 1.712160] [] drm_dev_register+0x9e/0x100 [ 1.712160] [] drm_get_pci_dev+0x91/0x1c0 [ 1.712160] [] ? trace_hardirqs_on+0xb/0x10 [ 1.712160] [] ? mutex_unlock+0x8/0x10 [ 1.712160] [] cirrus_pci_probe+0xac/0xf0 [ 1.712160] [] pci_device_probe+0x77/0xe0 [ 1.712160] [] ? sysfs_create_link+0x20/0x40 [ 1.712160] [] driver_probe_device+0x73/0x230 [ 1.712160] [] ? pci_match_device+0xc2/0xf0 [ 1.712160] [] __driver_attach+0x91/0xa0 [ 1.712160] [] ? __device_attach+0x50/0x50 [ 1.712160] [] bus_for_each_dev+0x4f/0x80 [ 1.712160] [] driver_attach+0x19/0x20 [ 1.712160] [] ? __device_attach+0x50/0x50 [ 1.712160] [] bus_add_driver+0x137/0x1f0 [ 1.712160] [] ? mgag200_init+0x22/0x22 [ 1.712160] [] ? mgag200_init+0x22/0x22 [ 1.712160] [] driver_register+0x54/0xe0 [ 1.712160] [] __pci_register_driver+0x45/0x50 [ 1.712160] [] drm_pci_init+0xea/0x110 [ 1.712160] [] ? trace_hardirqs_on+0xb/0x10 [ 1.712160] [] ? mgag200_init+0x22/0x22 [ 1.712160] [] cirrus_init+0x20/0x22 [ 1.732030] [] do_one_initcall+0x16a/0x179 [ 1.732030] [] ? parse_args+0x1e0/0x3e0 [ 1.732030] [] kernel_init_freeable+0xed/0x16a [ 1.732030] [] kernel_init+0xb/0xe0 [ 1.732030] [] ret_from_kernel_thread+0x21/0x30 [ 1.732030] [] ? rest_init+0x120/0x120 [ 1.734827] BUG: unable to handle kernel NULL pointer dereference at (null) [ 1.735720] IP: [] __ww_mutex_lock+0xfa/0x780 [ 1.736369] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 1.737105] Oops: 0002 [#1] SMP DEBUG_PAGEALLOC [ 1.737709] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc3-01010-g31c010b #2 [ 1.738620] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 [ 1.738813] task: d1c40000 ti: d1c48000 task.ti: d1c48000 [ 1.738813] EIP: 0060:[] EFLAGS: 00010082 CPU: 1 [ 1.738813] EIP is at __ww_mutex_lock+0xfa/0x780 [ 1.738813] EAX: 00000000 EBX: cb25f680 ECX: d1d3b034 EDX: d1c49cdc [ 1.738813] ESI: d1d3b010 EDI: d1d3b014 EBP: d1c49cf8 ESP: d1c49cb4 [ 1.738813] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 1.744023] CR0: 8005003b CR2: 00000000 CR3: 0c760000 CR4: 000006b0 [ 1.744023] Stack: [ 1.744023] 00000000 00000001 cb25f698 cba5fa51 cba5fa51 d1d3b048 00000001 d1c40000 [ 1.744023] cb25f680 00000246 d1d3b034 00000000 11111111 d1c49cdc cb25f680 d1d3b010 [ 1.744023] cb25f680 d1c49d0c cba5fa51 d1d3b000 d1d3a400 cb25f680 d1c49d20 cba5fce4 [ 1.744023] Call Trace: [ 1.744023] [] ? drm_modeset_lock+0x31/0xf0 [ 1.744023] [] ? drm_modeset_lock+0x31/0xf0 [ 1.744023] [] drm_modeset_lock+0x31/0xf0 [ 1.744023] [] drm_modeset_lock_all_crtcs+0x34/0x50 [ 1.744023] [] __drm_modeset_lock_all+0xa4/0xe0 [ 1.744023] [] drm_modeset_lock_all+0xa/0x30 [ 1.744023] [] drm_encoder_init+0x1b/0xe0 [ 1.744023] [] ? kmem_cache_alloc+0x98/0x190 [ 1.744023] [] ? cirrus_modeset_init+0xe1/0x1c0 [ 1.744023] [] cirrus_modeset_init+0x107/0x1c0 [ 1.744023] [] cirrus_driver_load+0x57/0x120 [ 1.744023] [] drm_dev_register+0x9e/0x100 [ 1.744023] [] drm_get_pci_dev+0x91/0x1c0 [ 1.744023] [] ? trace_hardirqs_on+0xb/0x10 [ 1.744023] [] ? mutex_unlock+0x8/0x10 [ 1.744023] [] cirrus_pci_probe+0xac/0xf0 [ 1.744023] [] pci_device_probe+0x77/0xe0 [ 1.744023] [] ? sysfs_create_link+0x20/0x40 [ 1.744023] [] driver_probe_device+0x73/0x230 [ 1.744023] [] ? pci_match_device+0xc2/0xf0 [ 1.744023] [] __driver_attach+0x91/0xa0 [ 1.744023] [] ? __device_attach+0x50/0x50 [ 1.744023] [] bus_for_each_dev+0x4f/0x80 [ 1.744023] [] driver_attach+0x19/0x20 [ 1.744023] [] ? __device_attach+0x50/0x50 [ 1.744023] [] bus_add_driver+0x137/0x1f0 [ 1.744023] [] ? mgag200_init+0x22/0x22 [ 1.744023] [] ? mgag200_init+0x22/0x22 [ 1.744023] [] driver_register+0x54/0xe0 [ 1.744023] [] __pci_register_driver+0x45/0x50 [ 1.744023] [] drm_pci_init+0xea/0x110 [ 1.744023] [] ? trace_hardirqs_on+0xb/0x10 [ 1.744023] [] ? mgag200_init+0x22/0x22 [ 1.744023] [] cirrus_init+0x20/0x22 [ 1.744023] [] do_one_initcall+0x16a/0x179 [ 1.744023] [] ? parse_args+0x1e0/0x3e0 [ 1.744023] [] kernel_init_freeable+0xed/0x16a [ 1.744023] [] kernel_init+0xb/0xe0 [ 1.744023] [] ret_from_kernel_thread+0x21/0x30 [ 1.744023] [] ? rest_init+0x120/0x120 [ 1.744023] Code: 55 e4 89 f0 e8 18 c2 2c ff 8b 45 d8 8d 55 e4 8b 48 04 89 f0 e8 48 c4 2c ff 8b 46 28 8d 4e 24 8d 55 e4 89 56 28 89 4d e4 89 45 e8 <89> 10 8b 45 d8 89 4d d4 89 45 ec 8d 74 26 00 8d bc 27 00 00 00 [ 1.744023] EIP: [] __ww_mutex_lock+0xfa/0x780 SS:ESP 0068:d1c49cb4 [ 1.744023] CR2: 0000000000000000 [ 1.744023] ---[ end trace 88891200177bb883 ]--- [ 1.744023] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-101:20140906015005:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-102:20140906015005:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-116:20140906015010:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-13:20140906015004:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-42:20140906015004:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-46:20140906015009:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-49:20140906015010:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-52:20140906015004:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-60:20140906015004:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-61:20140906015005:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-64:20140906015009:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-66:20140906015005:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-67:20140906015010:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-74:20140906015005:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-78:20140906015004:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-84:20140906015005:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-8:20140906015004:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-quantal-ivb41-94:20140906015004:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/31c010b13c93e6a7e8553be9b1d885b61df434b4/dmesg-yocto-vp-36:20140906015015:i386-randconfig-r3-0905:3.17.0-rc3-01010-g31c010b:2 0:19:20 all_good:bad:all_bad boots 2014-09-06 01:50:31 REPEAT COUNT: 20 # /c/boot-bisect/linux/obj-bisect/.repeat linear-bisect: bad branch may be drm-intel/topic/core-stuff linear-bisect: handle over to git bisect linear-bisect: git bisect start 31c010b13c93e6a7e8553be9b1d885b61df434b4 16cd192c2100085aa6ce04ec186fe62346a3b173 -- Previous HEAD position was 31c010b... Merge 'drm-intel/topic/core-stuff' into devel-roam-i386-201409052138 HEAD is now at fcb2133... Merge 'jbarnes/async-fb-probe' into devel-roam-i386-201405300201 Bisecting: 0 revisions left to test after this (roughly 0 steps) [4e396fc20db96c0af710601f081ffb41b0fe611c] drm: Drop modeset locking from crtc init function linear-bisect: git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linux-devel:devel-roam-i386-201409052138:4e396fc20db96c0af710601f081ffb41b0fe611c:bisect-linux 2014-09-06 01:50:56 4e396fc20db96c0af710601f081ffb41b0fe611c compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r3-0905-4e396fc20db96c0af710601f081ffb41b0fe611c Check for kernel in /kernel/i386-randconfig-r3-0905/4e396fc20db96c0af710601f081ffb41b0fe611c waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r3-0905-4e396fc20db96c0af710601f081ffb41b0fe611c waiting for completion of /kbuild-tests/build-queue/roam-i386/i386-randconfig-r3-0905-4e396fc20db96c0af710601f081ffb41b0fe611c kernel: /kernel/i386-randconfig-r3-0905/4e396fc20db96c0af710601f081ffb41b0fe611c/vmlinuz-3.17.0-rc2-00221-g4e396fc 2014-09-06 02:14:56 detecting boot state . TEST FAILURE [ 6.639051] [drm] radeon kernel modesetting enabled. [ 6.644580] [TTM] Zone kernel: Available graphics memory: 145752 kiB [ 6.645440] [TTM] Initializing pool allocator [ 6.646373] INFO: trying to register non-static key. [ 6.648016] the code is fine but needs lockdep annotation. [ 6.648016] turning off the locking correctness validator. [ 6.648016] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc2-00221-g4e396fc #5 [ 6.648016] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 6.648016] 00000000 00000000 d3451c08 d07981fd d118f530 d3451c7c cfa7b341 d0a9ea3c [ 6.648016] 0910bc05 d3448000 d3451c90 cfa79b96 d3448000 442f017e d3448000 442f017e [ 6.648016] 00000005 01448000 00000000 d26b0048 d26b0048 00000000 d115a830 d34485d0 [ 6.648016] Call Trace: [ 6.648016] [] dump_stack+0x48/0x60 [ 6.648016] [] __lock_acquire+0x1c21/0x1da0 [ 6.648016] [] ? __lock_acquire+0x476/0x1da0 [ 6.648016] [] ? __lock_is_held+0x46/0x60 [ 6.648016] [] lock_acquire+0x91/0xc0 [ 6.648016] [] ? drm_modeset_lock+0x31/0xf0 [ 6.648016] [] __ww_mutex_lock+0x6c/0x780 [ 6.648016] [] ? drm_modeset_lock+0x31/0xf0 [ 6.648016] [] ? drm_modeset_lock+0x31/0xf0 [ 6.648016] [] ? drm_modeset_lock+0x31/0xf0 [ 6.648016] [] drm_modeset_lock+0x31/0xf0 [ 6.648016] [] drm_modeset_lock_all_crtcs+0x34/0x50 [ 6.648016] [] __drm_modeset_lock_all+0xa4/0xe0 [ 6.648016] [] drm_modeset_lock_all+0xa/0x30 [ 6.648016] [] drm_encoder_init+0x1b/0xe0 [ 6.648016] [] ? kmem_cache_alloc+0x98/0x190 [ 6.648016] [] ? cirrus_modeset_init+0xe1/0x1c0 [ 6.648016] [] cirrus_modeset_init+0x107/0x1c0 [ 6.648016] [] cirrus_driver_load+0x57/0x120 [ 6.648016] [] drm_dev_register+0x9e/0x100 [ 6.648016] [] drm_get_pci_dev+0x91/0x1c0 [ 6.648016] [] ? trace_hardirqs_on+0xb/0x10 [ 6.648016] [] ? mutex_unlock+0x8/0x10 [ 6.648016] [] cirrus_pci_probe+0xac/0xf0 [ 6.648016] [] pci_device_probe+0x77/0xe0 [ 6.648016] [] ? sysfs_create_link+0x20/0x40 [ 6.648016] [] driver_probe_device+0x73/0x230 [ 6.648016] [] ? pci_match_device+0xc2/0xf0 [ 6.648016] [] __driver_attach+0x91/0xa0 [ 6.648016] [] ? __device_attach+0x50/0x50 [ 6.648016] [] bus_for_each_dev+0x4f/0x80 [ 6.648016] [] driver_attach+0x19/0x20 [ 6.648016] [] ? __device_attach+0x50/0x50 [ 6.648016] [] bus_add_driver+0x137/0x1f0 [ 6.648016] [] ? mgag200_init+0x22/0x22 [ 6.648016] [] ? mgag200_init+0x22/0x22 [ 6.648016] [] driver_register+0x54/0xe0 [ 6.648016] [] __pci_register_driver+0x45/0x50 [ 6.648016] [] drm_pci_init+0xea/0x110 [ 6.648016] [] ? trace_hardirqs_on+0xb/0x10 [ 6.648016] [] ? mgag200_init+0x22/0x22 [ 6.648016] [] cirrus_init+0x20/0x22 [ 6.648016] [] do_one_initcall+0x16a/0x179 [ 6.648016] [] ? parse_args+0x150/0x3e0 [ 6.648016] [] kernel_init_freeable+0xed/0x16a [ 6.648016] [] kernel_init+0xb/0xe0 [ 6.648016] [] ret_from_kernel_thread+0x21/0x30 [ 6.648016] [] ? rest_init+0x120/0x120 [ 6.734966] BUG: unable to handle kernel NULL pointer dereference at (null) [ 6.735824] IP: [] __ww_mutex_lock+0xfa/0x780 [ 6.736469] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 6.738942] Oops: 0002 [#1] SMP DEBUG_PAGEALLOC [ 6.738942] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc2-00221-g4e396fc #5 [ 6.738942] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 6.738942] task: d3448000 ti: d3450000 task.ti: d3450000 [ 6.738942] EIP: 0060:[] EFLAGS: 00010082 CPU: 0 [ 6.738942] EIP is at __ww_mutex_lock+0xfa/0x780 [ 6.738942] EAX: 00000000 EBX: d2530b40 ECX: d26b0034 EDX: d3451cdc [ 6.738942] ESI: d26b0010 EDI: d26b0014 EBP: d3451cf8 ESP: d3451cb4 [ 6.738942] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 6.738942] CR0: 80050033 CR2: 00000000 CR3: 10d5b000 CR4: 000406b0 [ 6.738942] Stack: [ 6.738942] 00000000 00000001 d2530b58 d005e531 d005e531 d26b0048 00000001 d3448000 [ 6.738942] d2530b40 00000246 d26b0034 00000000 11111111 d3451cdc d2530b40 d26b0010 [ 6.738942] d2530b40 d3451d0c d005e531 d26b0000 d3533400 d2530b40 d3451d20 d005e7c4 [ 6.738942] Call Trace: [ 6.738942] [] ? drm_modeset_lock+0x31/0xf0 [ 6.738942] [] ? drm_modeset_lock+0x31/0xf0 [ 6.738942] [] drm_modeset_lock+0x31/0xf0 [ 6.738942] [] drm_modeset_lock_all_crtcs+0x34/0x50 [ 6.738942] [] __drm_modeset_lock_all+0xa4/0xe0 [ 6.738942] [] drm_modeset_lock_all+0xa/0x30 [ 6.738942] [] drm_encoder_init+0x1b/0xe0 [ 6.738942] [] ? kmem_cache_alloc+0x98/0x190 [ 6.738942] [] ? cirrus_modeset_init+0xe1/0x1c0 [ 6.738942] [] cirrus_modeset_init+0x107/0x1c0 [ 6.738942] [] cirrus_driver_load+0x57/0x120 [ 6.738942] [] drm_dev_register+0x9e/0x100 [ 6.738942] [] drm_get_pci_dev+0x91/0x1c0 [ 6.738942] [] ? trace_hardirqs_on+0xb/0x10 [ 6.738942] [] ? mutex_unlock+0x8/0x10 [ 6.738942] [] cirrus_pci_probe+0xac/0xf0 [ 6.738942] [] pci_device_probe+0x77/0xe0 [ 6.738942] [] ? sysfs_create_link+0x20/0x40 [ 6.738942] [] driver_probe_device+0x73/0x230 [ 6.738942] [] ? pci_match_device+0xc2/0xf0 [ 6.738942] [] __driver_attach+0x91/0xa0 [ 6.738942] [] ? __device_attach+0x50/0x50 [ 6.738942] [] bus_for_each_dev+0x4f/0x80 [ 6.738942] [] driver_attach+0x19/0x20 [ 6.738942] [] ? __device_attach+0x50/0x50 [ 6.738942] [] bus_add_driver+0x137/0x1f0 [ 6.738942] [] ? mgag200_init+0x22/0x22 [ 6.738942] [] ? mgag200_init+0x22/0x22 [ 6.738942] [] driver_register+0x54/0xe0 [ 6.738942] [] __pci_register_driver+0x45/0x50 [ 6.738942] [] drm_pci_init+0xea/0x110 [ 6.738942] [] ? trace_hardirqs_on+0xb/0x10 [ 6.738942] [] ? mgag200_init+0x22/0x22 [ 6.738942] [] cirrus_init+0x20/0x22 [ 6.738942] [] do_one_initcall+0x16a/0x179 [ 6.738942] [] ? parse_args+0x150/0x3e0 [ 6.738942] [] kernel_init_freeable+0xed/0x16a [ 6.738942] [] kernel_init+0xb/0xe0 [ 6.738942] [] ret_from_kernel_thread+0x21/0x30 [ 6.738942] [] ? rest_init+0x120/0x120 [ 6.738942] Code: 55 e4 89 f0 e8 a8 e9 2c ff 8b 45 d8 8d 55 e4 8b 48 04 89 f0 e8 d8 eb 2c ff 8b 46 28 8d 4e 24 8d 55 e4 89 56 28 89 4d e4 89 45 e8 <89> 10 8b 45 d8 89 4d d4 89 45 ec 8d 74 26 00 8d bc 27 00 00 00 [ 6.738942] EIP: [] __ww_mutex_lock+0xfa/0x780 SS:ESP 0068:d3451cb4 [ 6.738942] CR2: 0000000000000000 [ 6.738942] ---[ end trace cb2e2f0d9cfcc176 ]--- [ 6.738942] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-r3-0905/4e396fc20db96c0af710601f081ffb41b0fe611c/dmesg-yocto-kbuild-11:20140906021310:i386-randconfig-r3-0905:3.17.0-rc2-00221-g4e396fc:5 /kernel/i386-randconfig-r3-0905/4e396fc20db96c0af710601f081ffb41b0fe611c/dmesg-yocto-kbuild-1:20140906021309:i386-randconfig-r3-0905:3.17.0-rc2-00221-g4e396fc:5 /kernel/i386-randconfig-r3-0905/4e396fc20db96c0af710601f081ffb41b0fe611c/dmesg-yocto-kbuild-2:20140906021307:i386-randconfig-r3-0905:3.17.0-rc2-00221-g4e396fc:5 /kernel/i386-randconfig-r3-0905/4e396fc20db96c0af710601f081ffb41b0fe611c/dmesg-yocto-kbuild-31:20140906021308:i386-randconfig-r3-0905:3.17.0-rc2-00221-g4e396fc:5 0:4:4 all_good:bad:all_bad boots 2014-09-06 02:15:28 REPEAT COUNT: 20 # /c/boot-bisect/linux/obj-bisect/.repeat 4e396fc20db96c0af710601f081ffb41b0fe611c is the first bad commit commit 4e396fc20db96c0af710601f081ffb41b0fe611c Author: Daniel Vetter Date: Fri Sep 5 14:27:41 2014 +0200 drm: Drop modeset locking from crtc init function At driver init no one can access modeset objects and we're single-threaded. So locking is just cargo-culting here. Worse, with the new ww mutexes and ww mutex slowpath debugging the mutex_lock might actually fail, and we don't have the full-blown ww recovery dance. Which then leads to fireworks when we try to unlock the not-locked crtc lock. An audit of all the functions called from here shows that none of them contain locking checks, so there's also no reason to keep the locking around just for consistency of caller contexts. Besides that I have the rule (at least in i915) that such places where we take locks just to simplify locking checks and not for correctness always require a comment. This regression was introduced in commit 51fd371bbaf94018a1223b4e2cf20b9880fd92d4 Author: Rob Clark Date: Tue Nov 19 12:10:12 2013 -0500 drm: convert crtc and connection_mutex to ww_mutex (v5) Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=83341 Cc: Rob Clark Cc: thellstrom@vmware.com Cc: maarten.lankhorst@canonical.com Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter :040000 040000 92f33e2e3175928f6d4b07f6522cdc345c63cfdb 94387527e0921029c454169408ff0e6f371b5484 M drivers bisect run success Previous HEAD position was 4e396fc... drm: Drop modeset locking from crtc init function HEAD is now at 5c551b5... drm/i915/hdmi: Enable pipe pixel replication for SD interlaced modes ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linux-devel:devel-roam-i386-201409052138:5c551b501aa8637e844ea85eaea10f4f75aff716:bisect-linux 2014-09-06 02:15:29 5c551b501aa8637e844ea85eaea10f4f75aff716 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r3-0905-5c551b501aa8637e844ea85eaea10f4f75aff716 Check for kernel in /kernel/i386-randconfig-r3-0905/5c551b501aa8637e844ea85eaea10f4f75aff716 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r3-0905-5c551b501aa8637e844ea85eaea10f4f75aff716 waiting for completion of /kbuild-tests/build-queue/roam-i386/i386-randconfig-r3-0905-5c551b501aa8637e844ea85eaea10f4f75aff716 kernel: /kernel/i386-randconfig-r3-0905/5c551b501aa8637e844ea85eaea10f4f75aff716/vmlinuz-3.17.0-rc2-00220-g5c551b5 2014-09-06 02:50:29 detecting boot state 3 18 54 57 59.............. 60 SUCCESS Previous HEAD position was 5c551b5... drm/i915/hdmi: Enable pipe pixel replication for SD interlaced modes HEAD is now at 5a2aa64... 0day head guard for 'devel-roam-i386-201409052138' ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linux-devel:devel-roam-i386-201409052138:5a2aa64d4eafdaef278ff495025c59a5cd96eafb:bisect-linux TEST FAILURE [ 1.848111] [drm] radeon kernel modesetting enabled. [ 1.849790] [TTM] Zone kernel: Available graphics memory: 134874 kiB [ 1.850533] [TTM] Initializing pool allocator [ 1.851386] INFO: trying to register non-static key. [ 1.851987] the code is fine but needs lockdep annotation. [ 1.852020] turning off the locking correctness validator. [ 1.852020] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc3-01180-g5a2aa64 #1030 [ 1.852020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 [ 1.852020] 00000000 00000000 d1c49c08 cc99ae9d cd398ff8 d1c49c7c cbc7b771 ccca1e24 [ 1.852020] 0950b205 d1c40000 d1c49c90 cbc79fc6 d1c40000 542c816a d1c40000 542c816a [ 1.852020] 00000005 01c40000 00000000 c0019848 c0019848 00000000 cd374918 d1c405d0 [ 1.852020] Call Trace: [ 1.852020] [] dump_stack+0x48/0x60 [ 1.852020] [] __lock_acquire+0x1c21/0x1da0 [ 1.852020] [] ? __lock_acquire+0x476/0x1da0 [ 1.852020] [] ? __lock_is_held+0x46/0x60 [ 1.852020] [] lock_acquire+0x91/0xc0 [ 1.852020] [] ? drm_modeset_lock+0x31/0xf0 [ 1.852020] [] __ww_mutex_lock+0x6c/0x780 [ 1.852020] [] ? drm_modeset_lock+0x31/0xf0 [ 1.852020] [] ? drm_modeset_lock+0x31/0xf0 [ 1.852020] [] ? drm_modeset_lock+0x31/0xf0 [ 1.852020] [] drm_modeset_lock+0x31/0xf0 [ 1.852020] [] drm_modeset_lock_all_crtcs+0x34/0x50 [ 1.852020] [] __drm_modeset_lock_all+0xa4/0xe0 [ 1.852020] [] drm_modeset_lock_all+0xa/0x30 [ 1.852020] [] drm_encoder_init+0x1b/0xe0 [ 1.852020] [] ? kmem_cache_alloc+0x98/0x190 [ 1.852020] [] ? cirrus_modeset_init+0xe1/0x1c0 [ 1.852020] [] cirrus_modeset_init+0x107/0x1c0 [ 1.852020] [] cirrus_driver_load+0x57/0x120 [ 1.852020] [] drm_dev_register+0x9e/0x100 [ 1.852020] [] drm_get_pci_dev+0x91/0x1c0 [ 1.852020] [] ? trace_hardirqs_on+0xb/0x10 [ 1.852020] [] ? mutex_unlock+0x8/0x10 [ 1.852020] [] cirrus_pci_probe+0xac/0xf0 [ 1.852020] [] pci_device_probe+0x77/0xe0 [ 1.852020] [] ? sysfs_create_link+0x20/0x40 [ 1.852020] [] driver_probe_device+0x73/0x230 [ 1.852020] [] ? pci_match_device+0xc2/0xf0 [ 1.852020] [] __driver_attach+0x91/0xa0 [ 1.852020] [] ? __device_attach+0x50/0x50 [ 1.852020] [] bus_for_each_dev+0x4f/0x80 [ 1.852020] [] driver_attach+0x19/0x20 [ 1.852020] [] ? __device_attach+0x50/0x50 [ 1.852020] [] bus_add_driver+0x137/0x1f0 [ 1.852020] [] ? mgag200_init+0x22/0x22 [ 1.852020] [] ? mgag200_init+0x22/0x22 [ 1.852020] [] driver_register+0x54/0xe0 [ 1.852020] [] __pci_register_driver+0x45/0x50 [ 1.852020] [] drm_pci_init+0xea/0x110 [ 1.852020] [] ? trace_hardirqs_on+0xb/0x10 [ 1.852020] [] ? mgag200_init+0x22/0x22 [ 1.852020] [] cirrus_init+0x20/0x22 [ 1.852020] [] do_one_initcall+0x16a/0x179 [ 1.852020] [] ? parse_args+0x1e0/0x3e0 [ 1.852020] [] kernel_init_freeable+0xed/0x16a [ 1.852020] [] kernel_init+0xb/0xe0 [ 1.852020] [] ret_from_kernel_thread+0x21/0x30 [ 1.852020] [] ? rest_init+0x120/0x120 [ 1.887847] BUG: unable to handle kernel NULL pointer dereference at (null) [ 1.888732] IP: [] __ww_mutex_lock+0xfa/0x780 [ 1.889405] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 1.890120] Oops: 0002 [#1] SMP DEBUG_PAGEALLOC [ 1.890694] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc3-01180-g5a2aa64 #1030 [ 1.891605] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 [ 1.891824] task: d1c40000 ti: d1c48000 task.ti: d1c48000 [ 1.891824] EIP: 0060:[] EFLAGS: 00010082 CPU: 0 [ 1.891824] EIP is at __ww_mutex_lock+0xfa/0x780 [ 1.891824] EAX: 00000000 EBX: caa5fec0 ECX: c0019834 EDX: d1c49cdc [ 1.891824] ESI: c0019810 EDI: c0019814 EBP: d1c49cf8 ESP: d1c49cb4 [ 1.891824] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 1.891824] CR0: 8005003b CR2: 00000000 CR3: 0cf60000 CR4: 000006b0 [ 1.891824] Stack: [ 1.891824] 00000000 00000001 caa5fed8 cc25fa51 cc25fa51 c0019848 00000001 d1c40000 [ 1.891824] caa5fec0 00000246 c0019834 00000000 11111111 d1c49cdc caa5fec0 c0019810 [ 1.891824] caa5fec0 d1c49d0c cc25fa51 c0019800 c0018c00 caa5fec0 d1c49d20 cc25fce4 [ 1.891824] Call Trace: [ 1.891824] [] ? drm_modeset_lock+0x31/0xf0 [ 1.891824] [] ? drm_modeset_lock+0x31/0xf0 [ 1.891824] [] drm_modeset_lock+0x31/0xf0 [ 1.891824] [] drm_modeset_lock_all_crtcs+0x34/0x50 [ 1.891824] [] __drm_modeset_lock_all+0xa4/0xe0 [ 1.891824] [] drm_modeset_lock_all+0xa/0x30 [ 1.891824] [] drm_encoder_init+0x1b/0xe0 [ 1.891824] [] ? kmem_cache_alloc+0x98/0x190 [ 1.891824] [] ? cirrus_modeset_init+0xe1/0x1c0 [ 1.891824] [] cirrus_modeset_init+0x107/0x1c0 [ 1.891824] [] cirrus_driver_load+0x57/0x120 [ 1.891824] [] drm_dev_register+0x9e/0x100 [ 1.891824] [] drm_get_pci_dev+0x91/0x1c0 [ 1.891824] [] ? trace_hardirqs_on+0xb/0x10 [ 1.891824] [] ? mutex_unlock+0x8/0x10 [ 1.891824] [] cirrus_pci_probe+0xac/0xf0 [ 1.891824] [] pci_device_probe+0x77/0xe0 [ 1.891824] [] ? sysfs_create_link+0x20/0x40 [ 1.891824] [] driver_probe_device+0x73/0x230 [ 1.891824] [] ? pci_match_device+0xc2/0xf0 [ 1.891824] [] __driver_attach+0x91/0xa0 [ 1.891824] [] ? __device_attach+0x50/0x50 [ 1.891824] [] bus_for_each_dev+0x4f/0x80 [ 1.891824] [] driver_attach+0x19/0x20 [ 1.891824] [] ? __device_attach+0x50/0x50 [ 1.891824] [] bus_add_driver+0x137/0x1f0 [ 1.891824] [] ? mgag200_init+0x22/0x22 [ 1.891824] [] ? mgag200_init+0x22/0x22 [ 1.891824] [] driver_register+0x54/0xe0 [ 1.891824] [] __pci_register_driver+0x45/0x50 [ 1.891824] [] drm_pci_init+0xea/0x110 [ 1.891824] [] ? trace_hardirqs_on+0xb/0x10 [ 1.891824] [] ? mgag200_init+0x22/0x22 [ 1.891824] [] cirrus_init+0x20/0x22 [ 1.891824] [] do_one_initcall+0x16a/0x179 [ 1.891824] [] ? parse_args+0x1e0/0x3e0 [ 1.891824] [] kernel_init_freeable+0xed/0x16a [ 1.891824] [] kernel_init+0xb/0xe0 [ 1.891824] [] ret_from_kernel_thread+0x21/0x30 [ 1.891824] [] ? rest_init+0x120/0x120 [ 1.891824] Code: 55 e4 89 f0 e8 48 c1 2c ff 8b 45 d8 8d 55 e4 8b 48 04 89 f0 e8 78 c3 2c ff 8b 46 28 8d 4e 24 8d 55 e4 89 56 28 89 4d e4 89 45 e8 <89> 10 8b 45 d8 89 4d d4 89 45 ec 8d 74 26 00 8d bc 27 00 00 00 [ 1.891824] EIP: [] __ww_mutex_lock+0xfa/0x780 SS:ESP 0068:d1c49cb4 [ 1.891824] CR2: 0000000000000000 [ 1.891824] ---[ end trace 665d2f9001be918c ]--- [ 1.891824] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-125:20140905220305:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-51:20140905220305:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-65:20140905220305:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-53:20140905220305:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-yocto-vp-57:20140905215852:i386-randconfig-r3-0905:3.17.0-rc3-01180-g5a2aa64:1030 /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-77:20140905220305:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-97:20140905220305:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-26:20140905220305:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-43:20140905220305:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-7:20140905220305:i386-randconfig-r3-0905:: /kernel/i386-randconfig-r3-0905/5a2aa64d4eafdaef278ff495025c59a5cd96eafb/dmesg-quantal-ivb41-116:20140905220305:i386-randconfig-r3-0905:: 0:11:11 all_good:bad:all_bad boots HEAD is now at 5a2aa64 0day head guard for 'devel-roam-i386-201409052138' ========= linus/master ========= From git://gitmirror/linus b7fece1..fb76234 master -> linus/master Previous HEAD position was 5a2aa64... 0day head guard for 'devel-roam-i386-201409052138' HEAD is now at fb76234... Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/linus:master:fb762340e55638332407560396aea380b7af9cbf:bisect-linux 2014-09-06 03:00:46 fb762340e55638332407560396aea380b7af9cbf compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r3-0905-fb762340e55638332407560396aea380b7af9cbf Check for kernel in /kernel/i386-randconfig-r3-0905/fb762340e55638332407560396aea380b7af9cbf waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r3-0905-fb762340e55638332407560396aea380b7af9cbf waiting for completion of /kbuild-tests/build-queue/roam-i386/i386-randconfig-r3-0905-fb762340e55638332407560396aea380b7af9cbf kernel: /kernel/i386-randconfig-r3-0905/fb762340e55638332407560396aea380b7af9cbf/vmlinuz-3.17.0-rc3-00104-gfb76234 2014-09-06 03:08:48 detecting boot state 58. 59. 60 SUCCESS ========= next/master ========= From git://gitmirror/next + 56dac76...8724b07 akpm -> next/akpm (forced update) + 8f4fa98...4b34238 akpm-base -> next/akpm-base (forced update) + 9ae4363...92d88cb master -> next/master (forced update) 7505cea..b7fece1 stable -> next/stable From git://gitmirror/next * [new tag] next-20140904 -> next-20140904 * [new tag] next-20140905 -> next-20140905 Previous HEAD position was fb76234... Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k HEAD is now at 92d88cb... Add linux-next specific files for 20140905 ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r3-0905/next:master:92d88cb068a5dc66d53ef017999b2419b125f764:bisect-linux 2014-09-06 03:11:39 92d88cb068a5dc66d53ef017999b2419b125f764 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r3-0905-92d88cb068a5dc66d53ef017999b2419b125f764 Check for kernel in /kernel/i386-randconfig-r3-0905/92d88cb068a5dc66d53ef017999b2419b125f764 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r3-0905-92d88cb068a5dc66d53ef017999b2419b125f764 waiting for completion of /kbuild-tests/build-queue/roam-i386/i386-randconfig-r3-0905-92d88cb068a5dc66d53ef017999b2419b125f764 kernel: /kernel/i386-randconfig-r3-0905/92d88cb068a5dc66d53ef017999b2419b125f764/vmlinuz-3.17.0-rc3-next-20140905 2014-09-06 04:06:39 detecting boot state . 58................. 60 SUCCESS