git checkout 5d1caa385f1675caf09e13afcd2b1db7a1c9b8e8 ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:5d1caa385f1675caf09e13afcd2b1db7a1c9b8e8:bisect-linux 2014-02-16 23:14:55: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/5d1caa385f1675caf09e13afcd2b1db7a1c9b8e8' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-16-23:14:55 5d1caa385f1675caf09e13afcd2b1db7a1c9b8e8 compiling 44 real 740 user 52 sys 1769.11% cpu i386-randconfig-x1-02152208 2014-02-16-23:15:49 detecting boot state 3.14.0-rc2-03021-g5d1caa3............ TEST FAILURE [ 2.193723] .................................... done. [ 2.194585] Using IPI No-Shortcut mode [ 2.196329] Unregister pv shared memory for cpu 0 [ 2.211838] BUG: unable to handle kernel NULL pointer dereference at 00000040 [ 2.213070] IP: [] pick_next_task+0xa/0x48 [ 2.213812] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 2.214266] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 2.214266] CPU: 0 PID: 9 Comm: migration/0 Not tainted 3.14.0-rc2-03021-g5d1caa3 #101 [ 2.214266] task: cfc5d580 ti: cfc9c000 task.ti: cfc9c000 [ 2.214266] EIP: 0060:[] EFLAGS: 00010046 CPU: 0 [ 2.214266] EIP is at pick_next_task+0xa/0x48 [ 2.214266] EAX: d3cae100 EBX: d3cae100 ECX: 00000000 EDX: 00000000 [ 2.214266] ESI: d3cae100 EDI: 00000000 EBP: cfc9ddc0 ESP: cfc9ddb4 [ 2.214266] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 2.214266] CR0: 8005003b CR2: 00000040 CR3: 10770000 CR4: 000006b0 [ 2.214266] Stack: [ 2.214266] d3cae100 d3cae100 d0659930 cfc9dde4 d0061e2e 00000200 cfc5d580 00000082 [ 2.214266] 00000000 d065a864 00000000 d0659930 cfc9de00 d00595a8 00000000 00000008 [ 2.214266] ffffffff cfc55e6c 00000000 cfc9de14 d0059860 fffffffb 00000000 00000000 [ 2.214266] Call Trace: [ 2.214266] [] migration_call+0x10b/0x188 [ 2.214266] [] notifier_call_chain+0x32/0x4b [ 2.214266] [] __raw_notifier_call_chain+0x1e/0x23 [ 2.214266] [] __cpu_notify+0x24/0x3e [ 2.214266] [] cpu_notify+0x18/0x1a [ 2.214266] [] take_cpu_down+0x22/0x32 [ 2.214266] [] multi_cpu_stop+0x80/0xce [ 2.214266] [] ? __stop_cpus+0x55/0x55 [ 2.214266] [] cpu_stopper_thread+0x80/0x111 [ 2.214266] [] ? __lock_acquire.isra.27+0x1c5/0x4e4 [ 2.214266] [] ? __schedule+0x375/0x55c [ 2.214266] [] ? lock_acquire+0x93/0xe0 [ 2.214266] [] ? lock_release+0x16d/0x1b1 [ 2.214266] [] ? _raw_spin_unlock_irqrestore+0x44/0x4f [ 2.214266] [] smpboot_thread_fn+0x15d/0x173 [ 2.214266] [] ? smpboot_unpark_thread+0x2e/0x2e [ 2.214266] [] kthread+0x8d/0x92 [ 2.214266] [] ? __queue_work+0x65/0x205 [ 2.214266] [] ret_from_kernel_thread+0x1b/0x28 [ 2.214266] [] ? __kthread_parkme+0x55/0x55 [ 2.214266] Code: 00 ba 01 00 00 00 89 f0 eb 0e 89 f0 e8 de 4b 3a 00 ba 01 00 00 00 89 d8 e8 29 53 3a 00 5b 5e 5d c3 55 89 e5 57 89 d7 56 89 c6 53 <81> 7a 40 74 03 41 d0 74 07 bb a0 04 41 d0 eb 23 8b 40 6c 39 46 [ 2.214266] EIP: [] pick_next_task+0xa/0x48 SS:ESP 0068:cfc9ddb4 [ 2.214266] CR2: 0000000000000040 [ 2.214266] ---[ end trace 9b583b7803cc32c6 ]--- [ 2.214266] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-x1-02152208/5d1caa385f1675caf09e13afcd2b1db7a1c9b8e8/dmesg-yocto-xian-56:20140216232133:i386-randconfig-x1-02152208:3.14.0-rc2-03021-g5d1caa3:101 0:1:1 all_good:bad:all_bad boots bisect: bad commit 5d1caa385f1675caf09e13afcd2b1db7a1c9b8e8 git checkout v3.13 ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:d8ec26d7f8287f5788a494f56e8814210f0e64be:bisect-linux 2014-02-16 23:21:52: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/d8ec26d7f8287f5788a494f56e8814210f0e64be' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-16-23:21:52 d8ec26d7f8287f5788a494f56e8814210f0e64be compiling 41 real 733 user 52 sys 1912.09% cpu i386-randconfig-x1-02152208 2014-02-16-23:22:39 detecting boot state 3.13.0. 2 3 4 7... 9 10 13 15 16 19.. 20 21 22 SUCCESS bisect: good commit v3.13 git bisect start 5d1caa385f1675caf09e13afcd2b1db7a1c9b8e8 v3.13 -- /c/kernel-tests/linear-bisect: ["-b", "5d1caa385f1675caf09e13afcd2b1db7a1c9b8e8", "-g", "v3.13", "/c/kernel-tests/bisect-test-boot-failure.sh", "/kernel-tests/linux/obj-bisect"] Bisecting: 14600 revisions left to test after this (roughly 14 steps) [595bf999e3a864f40e049c67c42ecee50fb7a78a] Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:595bf999e3a864f40e049c67c42ecee50fb7a78a:bisect-linux 2014-02-16 23:32:12: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/595bf999e3a864f40e049c67c42ecee50fb7a78a' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-16-23:32:13 595bf999e3a864f40e049c67c42ecee50fb7a78a compiling 45 real 742 user 53 sys 1755.69% cpu i386-randconfig-x1-02152208 2014-02-16-23:33:06 detecting boot state 3.13.0-10706-g595bf99.. 1 5 7 13 15 17. 18 21 22 SUCCESS Bisecting: 3894 revisions left to test after this (roughly 12 steps) [55177c171200d841cdc23603f196e21a2d664c8f] Merge remote-tracking branch 'arm-perf/for-next/perf' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:55177c171200d841cdc23603f196e21a2d664c8f:bisect-linux 2014-02-16 23:39:08: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/55177c171200d841cdc23603f196e21a2d664c8f' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-16-23:39:08 55177c171200d841cdc23603f196e21a2d664c8f compiling 49 real 700 user 49 sys 1504.56% cpu i386-randconfig-x1-02152208 2014-02-16-23:40:04 detecting boot state 3.14.0-rc2-00497-g55177c1.... 2. 9 13 16 18 20... 22 SUCCESS Bisecting: 2524 revisions left to test after this (roughly 12 steps) [12915522027525880c8fdd3fe08a7c8a74213f31] Merge remote-tracking branch 'wireless-next/master' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:12915522027525880c8fdd3fe08a7c8a74213f31:bisect-linux 2014-02-16 23:47:36: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/12915522027525880c8fdd3fe08a7c8a74213f31' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-16-23:47:36 12915522027525880c8fdd3fe08a7c8a74213f31 compiling 55 real 676 user 47 sys 1303.64% cpu i386-randconfig-x1-02152208 2014-02-16-23:48:39 detecting boot state 3.14.0-rc2-01725-g1291552. 2. 4 5 9........................... 14 16 22 SUCCESS Bisecting: 1296 revisions left to test after this (roughly 11 steps) [cb628c275dcd8bbdd61df2d96355a88e96a26c04] Merge remote-tracking branch 'selinux/next' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:cb628c275dcd8bbdd61df2d96355a88e96a26c04:bisect-linux 2014-02-17 00:06:41: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/cb628c275dcd8bbdd61df2d96355a88e96a26c04' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-00:06:41 cb628c275dcd8bbdd61df2d96355a88e96a26c04 compiling 46 real 628 user 42 sys 1432.09% cpu i386-randconfig-x1-02152208 2014-02-17-00:07:36 detecting boot state 3.14.0-rc2-02357-gcb628c2............. 2. 6.. 7... 8 10 12 17 19 22 SUCCESS Bisecting: 664 revisions left to test after this (roughly 10 steps) [3c1530d6101118e3a025114883f03578d4db4b66] Merge remote-tracking branch 'regmap/for-next' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:3c1530d6101118e3a025114883f03578d4db4b66:bisect-linux 2014-02-17 00:21:38: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/3c1530d6101118e3a025114883f03578d4db4b66' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-00:21:38 3c1530d6101118e3a025114883f03578d4db4b66 compiling 59 real 729 user 51 sys 1314.13% cpu i386-randconfig-x1-02152208 2014-02-17-00:22:45 detecting boot state 3.14.0-rc2-02637-g3c1530d.... TEST FAILURE [ 3.278579] Using IPI No-Shortcut mode [ 3.279814] tsc: Refined TSC clocksource calibration: 2892.947 MHz [ 3.280881] Unregister pv shared memory for cpu 0 [ 3.297279] BUG: unable to handle kernel NULL pointer dereference at 00000040 [ 3.298195] IP: [] pick_next_task+0xa/0x48 [ 3.298876] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 3.299546] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 3.299746] CPU: 0 PID: 9 Comm: migration/0 Not tainted 3.14.0-rc2-02637-g3c1530d #107 [ 3.299746] task: cf85d580 ti: cf89c000 task.ti: cf89c000 [ 3.299746] EIP: 0060:[] EFLAGS: 00010046 CPU: 0 [ 3.299746] EIP is at pick_next_task+0xa/0x48 [ 3.299746] EAX: d279c100 EBX: d279c100 ECX: 00000000 EDX: 00000000 [ 3.299746] ESI: d279c100 EDI: 00000000 EBP: cf89ddc0 ESP: cf89ddb4 [ 3.299746] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 3.299746] CR0: 8005003b CR2: 00000040 CR3: 0b571000 CR4: 000006b0 [ 3.299746] Stack: [ 3.299746] d279c100 d279c100 cb459930 cf89dde4 cae61e4f 00000200 cf85d580 00000082 [ 3.299746] 00000000 cb45a824 00000000 cb459930 cf89de00 cae595a8 00000000 00000008 [ 3.299746] ffffffff cf855e6c 00000000 cf89de14 cae59860 fffffffb 00000000 00000000 [ 3.299746] Call Trace: [ 3.299746] [] migration_call+0x10b/0x188 [ 3.299746] [] notifier_call_chain+0x32/0x4b [ 3.299746] [] __raw_notifier_call_chain+0x1e/0x23 [ 3.299746] [] __cpu_notify+0x24/0x3e [ 3.299746] [] cpu_notify+0x18/0x1a [ 3.299746] [] take_cpu_down+0x22/0x32 [ 3.299746] [] multi_cpu_stop+0x80/0xce [ 3.299746] [] ? __stop_cpus+0x55/0x55 [ 3.299746] [] cpu_stopper_thread+0x80/0x111 [ 3.299746] [] ? __lock_acquire.isra.27+0x1c5/0x4e4 [ 3.299746] [] ? __schedule+0x375/0x55c [ 3.299746] [] ? lock_acquire+0x93/0xe0 [ 3.299746] [] ? lock_release+0x16d/0x1b1 [ 3.299746] [] ? _raw_spin_unlock_irqrestore+0x44/0x4f [ 3.299746] [] smpboot_thread_fn+0x15d/0x173 [ 3.299746] [] ? smpboot_unpark_thread+0x2e/0x2e [ 3.299746] [] kthread+0x8d/0x92 [ 3.299746] [] ? __queue_work+0x65/0x205 [ 3.299746] [] ret_from_kernel_thread+0x1b/0x28 [ 3.299746] [] ? __kthread_parkme+0x55/0x55 [ 3.299746] Code: 00 ba 01 00 00 00 89 f0 eb 0e 89 f0 e8 9e 51 3a 00 ba 01 00 00 00 89 d8 e8 e9 58 3a 00 5b 5e 5d c3 55 89 e5 57 89 d7 56 89 c6 53 <81> 7a 40 74 03 21 cb 74 07 bb a0 04 21 cb eb 23 8b 40 6c 39 46 [ 3.299746] EIP: [] pick_next_task+0xa/0x48 SS:ESP 0068:cf89ddb4 [ 3.299746] CR2: 0000000000000040 [ 3.299746] ---[ end trace 265084aa895e4c84 ]--- [ 3.299746] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-x1-02152208/3c1530d6101118e3a025114883f03578d4db4b66/dmesg-quantal-athens-51:20140217002430:i386-randconfig-x1-02152208:3.14.0-rc2-02637-g3c1530d:107 0:1:1 all_good:bad:all_bad boots Bisecting: 280 revisions left to test after this (roughly 9 steps) [782f3c7e70bbcd03be9f5f9119a10dee790c5349] Merge remote-tracking branch 'tip/auto-latest' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:782f3c7e70bbcd03be9f5f9119a10dee790c5349:bisect-linux 2014-02-17 00:24:46: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/782f3c7e70bbcd03be9f5f9119a10dee790c5349' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-00:24:46 782f3c7e70bbcd03be9f5f9119a10dee790c5349 compiling 46 real 722 user 51 sys 1675.61% cpu i386-randconfig-x1-02152208 2014-02-17-00:25:39 detecting boot state 3.14.0-rc2-02538-g782f3c7.... 1 TEST FAILURE [ 13.101475] .................................... done. [ 13.102276] Using IPI No-Shortcut mode [ 13.136417] Unregister pv shared memory for cpu 0 [ 13.159220] BUG: unable to handle kernel NULL pointer dereference at 00000040 [ 13.159373] IP: [] pick_next_task+0xa/0x48 [ 13.159373] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 13.159373] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 13.159373] CPU: 0 PID: 9 Comm: migration/0 Not tainted 3.14.0-rc2-02538-g782f3c7 #108 [ 13.159373] task: d305d580 ti: d309c000 task.ti: d309c000 [ 13.159373] EIP: 0060:[] EFLAGS: 00010046 CPU: 0 [ 13.159373] EIP is at pick_next_task+0xa/0x48 [ 13.159373] EAX: d3cae100 EBX: d3cae100 ECX: 00000003 EDX: 00000000 [ 13.159373] ESI: d3cae100 EDI: 00000000 EBP: d309ddc0 ESP: d309ddb4 [ 13.159373] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 13.159373] CR0: 8005003b CR2: 00000040 CR3: 1276e000 CR4: 000006b0 [ 13.159373] Stack: [ 13.159373] d3cae100 d3cae100 d2657930 d309dde4 d2061e4f 00000200 d305d580 00000082 [ 13.159373] 00000000 d2658824 00000000 d2657930 d309de00 d20595a8 00000000 00000008 [ 13.159373] ffffffff d3055e6c 00000000 d309de14 d2059860 fffffffb 00000000 00000000 [ 13.159373] Call Trace: [ 13.159373] [] migration_call+0x10b/0x188 [ 13.159373] [] notifier_call_chain+0x32/0x4b [ 13.159373] [] __raw_notifier_call_chain+0x1e/0x23 [ 13.159373] [] __cpu_notify+0x24/0x3e [ 13.159373] [] cpu_notify+0x18/0x1a [ 13.159373] [] take_cpu_down+0x22/0x32 [ 13.159373] [] multi_cpu_stop+0x80/0xce [ 13.159373] [] ? __stop_cpus+0x55/0x55 [ 13.159373] [] cpu_stopper_thread+0x80/0x111 [ 13.159373] [] ? __lock_acquire.isra.27+0x1c5/0x4e4 [ 13.159373] [] ? __schedule+0x375/0x55c [ 13.159373] [] ? lock_acquire+0x93/0xe0 [ 13.159373] [] ? lock_release+0x16d/0x1b1 [ 13.159373] [] ? _raw_spin_unlock_irqrestore+0x44/0x4f [ 13.159373] [] smpboot_thread_fn+0x15d/0x173 [ 13.159373] [] ? smpboot_unpark_thread+0x2e/0x2e [ 13.159373] [] kthread+0x8d/0x92 [ 13.159373] [] ? __queue_work+0x65/0x205 [ 13.159373] [] ret_from_kernel_thread+0x1b/0x28 [ 13.159373] [] ? __kthread_parkme+0x55/0x55 [ 13.159373] Code: 00 ba 01 00 00 00 89 f0 eb 0e 89 f0 e8 96 3f 3a 00 ba 01 00 00 00 89 d8 e8 e1 46 3a 00 5b 5e 5d c3 55 89 e5 57 89 d7 56 89 c6 53 <81> 7a 40 74 f3 40 d2 74 07 bb a0 f4 40 d2 eb 23 8b 40 6c 39 46 [ 13.159373] EIP: [] pick_next_task+0xa/0x48 SS:ESP 0068:d309ddb4 [ 13.159373] CR2: 0000000000000040 [ 13.159373] ---[ end trace 65b35e36cc6cef47 ]--- [ 13.159373] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-x1-02152208/782f3c7e70bbcd03be9f5f9119a10dee790c5349/dmesg-yocto-xian-36:20140217002757:i386-randconfig-x1-02152208:3.14.0-rc2-02538-g782f3c7:108 1:1:1 all_good:bad:all_bad boots 2014-02-17 00:28:10 REPEAT COUNT: 30 # /kernel-tests/linux/obj-bisect/.repeat Bisecting: 181 revisions left to test after this (roughly 8 steps) [b35e7aede6fb0226b4865450f62362e85bf6a306] Merge remote-tracking branch 'trivial/for-next' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:b35e7aede6fb0226b4865450f62362e85bf6a306:bisect-linux 2014-02-17 00:28:10: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/b35e7aede6fb0226b4865450f62362e85bf6a306' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-00:28:10 b35e7aede6fb0226b4865450f62362e85bf6a306 compiling 42 real 739 user 51 sys 1842.91% cpu i386-randconfig-x1-02152208 2014-02-17-00:29:01 detecting boot state 3.14.0-rc2-02362-gb35e7ae.. 3 9 10 11 12 13 15 17 20.. 21.. 25. 27.... 28................. 29........ 30 SUCCESS Bisecting: 176 revisions left to test after this (roughly 8 steps) [16af830af77fbfde49779f58328a2308593c9552] Merge remote-tracking branch 'devicetree/devicetree/next' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:16af830af77fbfde49779f58328a2308593c9552:bisect-linux 2014-02-17 00:54:31: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/16af830af77fbfde49779f58328a2308593c9552' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-00:54:31 16af830af77fbfde49779f58328a2308593c9552 compiling 16 real 151 user 11 sys 996.50% cpu i386-randconfig-x1-02152208 2014-02-17-00:54:54 detecting boot state 3.14.0-rc2-02373-g16af830....................... 2. 6 7 8 10 11 14. 15 16. 17....... 18 19.. 20 21 23.. 24 25....... 26............................................................... 27. 30 SUCCESS Bisecting: 165 revisions left to test after this (roughly 8 steps) [b74fcf317cca175426c2fee78ce8640ac91b6749] Merge remote-tracking branch 'spi/for-next' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:b74fcf317cca175426c2fee78ce8640ac91b6749:bisect-linux 2014-02-17 01:58:56: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/b74fcf317cca175426c2fee78ce8640ac91b6749' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-01:58:56 b74fcf317cca175426c2fee78ce8640ac91b6749 compiling 16 real 43 user 3 sys 293.80% cpu i386-randconfig-x1-02152208 2014-02-17-01:59:21 detecting boot state 3.14.0-rc2-02444-gb74fcf3... 1 3 6. 7 9 10 14 19. 20 22.. 25 26 28... 30 SUCCESS linear-bisect: bad branch may be remote-tracking branch 'tip/auto-latest' linear-bisect: handle over to git bisect linear-bisect: git bisect start 782f3c7e70bbcd03be9f5f9119a10dee790c5349 b74fcf317cca175426c2fee78ce8640ac91b6749 -- Previous HEAD position was b74fcf3... Merge remote-tracking branch 'spi/for-next' HEAD is now at 5e30025... Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Bisecting: 60 revisions left to test after this (roughly 6 steps) [3f67d962c64d9b6de9dab81bdbe6d5c94c80d9b9] cpuidle/pseries: Fix fallout caused due to cleanup in pseries cpuidle backend driver linear-bisect: git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:3f67d962c64d9b6de9dab81bdbe6d5c94c80d9b9:bisect-linux 2014-02-17 02:11:26: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/3f67d962c64d9b6de9dab81bdbe6d5c94c80d9b9' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-02:11:26 3f67d962c64d9b6de9dab81bdbe6d5c94c80d9b9 compiling 62 real 719 user 50 sys 1224.86% cpu i386-randconfig-x1-02152208 2014-02-17-02:12:38 detecting boot state 3.13.0-11340-g3f67d96. TEST FAILURE [ 4.320279] .................................... done. [ 4.321074] Using IPI No-Shortcut mode [ 4.323046] Unregister pv shared memory for cpu 0 [ 4.339283] BUG: unable to handle kernel NULL pointer dereference at 00000040 [ 4.340421] IP: [] pick_next_task+0xa/0x48 [ 4.341186] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 4.341707] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 4.341707] CPU: 0 PID: 9 Comm: migration/0 Not tainted 3.13.0-11340-g3f67d96 #112 [ 4.341707] task: cf85d580 ti: cf89c000 task.ti: cf89c000 [ 4.341707] EIP: 0060:[] EFLAGS: 00010046 CPU: 0 [ 4.341707] EIP is at pick_next_task+0xa/0x48 [ 4.341707] EAX: d279c100 EBX: d279c100 ECX: 00000001 EDX: 00000000 [ 4.341707] ESI: d279c100 EDI: 00000000 EBP: cf89ddc0 ESP: cf89ddb4 [ 4.341707] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 4.341707] CR0: 8005003b CR2: 00000040 CR3: 02769000 CR4: 000006b0 [ 4.341707] Stack: [ 4.341707] d279c100 d279c100 c2653870 cf89dde4 c2061e74 00000200 cf85d580 00000082 [ 4.341707] 00000000 c2654764 00000000 c2653870 cf89de00 c20595cd 00000000 00000008 [ 4.341707] ffffffff cf855e6c 00000000 cf89de14 c2059885 fffffffb 00000000 00000000 [ 4.341707] Call Trace: [ 4.341707] [] migration_call+0x10b/0x188 [ 4.341707] [] notifier_call_chain+0x32/0x4b [ 4.341707] [] __raw_notifier_call_chain+0x1e/0x23 [ 4.341707] [] __cpu_notify+0x24/0x3e [ 4.341707] [] cpu_notify+0x18/0x1a [ 4.341707] [] take_cpu_down+0x22/0x32 [ 4.341707] [] multi_cpu_stop+0x80/0xce [ 4.341707] [] ? __stop_cpus+0x55/0x55 [ 4.341707] [] cpu_stopper_thread+0x80/0x111 [ 4.341707] [] ? __lock_acquire.isra.27+0x1cb/0x4ea [ 4.341707] [] ? __schedule+0x375/0x55c [ 4.341707] [] ? lock_acquire+0x93/0xe0 [ 4.341707] [] ? lock_release+0x16d/0x1b1 [ 4.341707] [] ? _raw_spin_unlock_irqrestore+0x44/0x4f [ 4.341707] [] smpboot_thread_fn+0x15d/0x173 [ 4.341707] [] ? smpboot_unpark_thread+0x2e/0x2e [ 4.341707] [] kthread+0x8d/0x92 [ 4.341707] [] ? __queue_work+0x40/0x205 [ 4.341707] [] ret_from_kernel_thread+0x1b/0x28 [ 4.341707] [] ? __kthread_parkme+0x55/0x55 [ 4.341707] Code: 00 ba 01 00 00 00 89 f0 eb 0e 89 f0 e8 61 12 3a 00 ba 01 00 00 00 89 d8 e8 ac 19 3a 00 5b 5e 5d c3 55 89 e5 57 89 d7 56 89 c6 53 <81> 7a 40 34 c3 40 c2 74 07 bb 60 c4 40 c2 eb 23 8b 40 6c 39 46 [ 4.341707] EIP: [] pick_next_task+0xa/0x48 SS:ESP 0068:cf89ddb4 [ 4.341707] CR2: 0000000000000040 [ 4.341707] ---[ end trace 75b76bdc9a78cb30 ]--- [ 4.341707] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-x1-02152208/3f67d962c64d9b6de9dab81bdbe6d5c94c80d9b9/dmesg-quantal-xian-51:20140217021255:i386-randconfig-x1-02152208:3.13.0-11340-g3f67d96:112 0:1:1 all_good:bad:all_bad boots Bisecting: 16 revisions left to test after this (roughly 4 steps) [e5fc66119ec97054eefc83f173a7ee9e133c3c3a] sched: Fix race in idle_balance() running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:e5fc66119ec97054eefc83f173a7ee9e133c3c3a:bisect-linux 2014-02-17 02:13:09: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/e5fc66119ec97054eefc83f173a7ee9e133c3c3a' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-02:13:09 e5fc66119ec97054eefc83f173a7ee9e133c3c3a compiling 53 real 546 user 36 sys 1080.86% cpu i386-randconfig-x1-02152208 2014-02-17-02:14:09 detecting boot state 3.13.0-11323-ge5fc661.... 2 3................................................................... 4 5 7 11 15 18 19 21 22 23.. 25...... 26 27. 28.... 29........... 30 SUCCESS Bisecting: 8 revisions left to test after this (roughly 3 steps) [27f17580fd2c7514c8f5cce22ab903c6f3ddf458] sched: Delete is_same_group() outside CONFIG_FAIR_GROUP_SCHED running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:27f17580fd2c7514c8f5cce22ab903c6f3ddf458:bisect-linux 2014-02-17 03:10:40: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/27f17580fd2c7514c8f5cce22ab903c6f3ddf458' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-03:10:40 27f17580fd2c7514c8f5cce22ab903c6f3ddf458 compiling 53 real 548 user 37 sys 1101.61% cpu i386-randconfig-x1-02152208 2014-02-17-03:11:41 detecting boot state 3.13.0-11331-g27f1758 2 3 4...... TEST FAILURE [ 0.784326] Unpacking initramfs... [ 0.785751] Initramfs unpacking failed: junk in compressed archive [ 0.788424] debug: unmapping init [mem 0xce7ab000-0xcffeffff] [ 0.791199] BUG: unable to handle kernel paging request at ce8a9000 [ 0.793798] IP: [] __change_page_attr_set_clr+0xd9/0x5f5 [ 0.794739] *pdpt = 000000000e366001 *pde = 000000000e8a8067 Elapsed time: 10 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/i386-randconfig-x1-02152208/27f17580fd2c7514c8f5cce22ab903c6f3ddf458/vmlinuz-3.13.0-11331-g27f1758 -append 'hung_task_panic=1 earlyprintk=ttyS0,115200 debug apic=debug sysrq_always_enabled panic=10 softlockup_panic=1 nmi_watchdog=panic prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:27f17580fd2c7514c8f5cce22ab903c6f3ddf458:bisect-linux/.vmlinuz-27f17580fd2c7514c8f5cce22ab903c6f3ddf458-20140217031139-1-jaketown branch=next/master BOOT_IMAGE=/kernel/i386-randconfig-x1-02152208/27f17580fd2c7514c8f5cce22ab903c6f3ddf458/vmlinuz-3.13.0-11331-g27f1758' -initrd /kernel-tests/initrd/quantal-core-i386.cgz -m 256 -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1,hostfwd=tcp::48639-:22 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-quantal-jaketown-28 -serial file:/dev/shm/kboot/serial-quantal-jaketown-28 -daemonize -display none -monitor null /kernel/i386-randconfig-x1-02152208/27f17580fd2c7514c8f5cce22ab903c6f3ddf458/dmesg-quantal-snb-40:20140217031600:i386-randconfig-x1-02152208:3.13.0-11331-g27f1758:114 2:1:3 all_good:bad:all_bad boots 2014-02-17 03:16:11 REPEAT COUNT: 60 # /kernel-tests/linux/obj-bisect/.repeat Bisecting: 3 revisions left to test after this (roughly 2 steps) [f10447998a59b97747c16258a9c6e6a1512f27f3] sched/fair: Clean up the __clear_buddies_*() functions running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:f10447998a59b97747c16258a9c6e6a1512f27f3:bisect-linux 2014-02-17 03:16:12: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/f10447998a59b97747c16258a9c6e6a1512f27f3' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-03:16:12 f10447998a59b97747c16258a9c6e6a1512f27f3 compiling 11 real 27 user 2 sys 259.10% cpu i386-randconfig-x1-02152208 2014-02-17-03:16:29 detecting boot state 3.13.0-11327-gf104479. 1 2 6 7 9 10.. 11 14 21 26. 30 31 32..... 33 34. 35. 39 41. 43..... 44............................ 46 48 53 58.... 59........... 60 SUCCESS Bisecting: 1 revision left to test after this (roughly 1 step) [6c3b4d44ba2838f00614a5a2d777d4401e0bfd71] sched: Clean up idle task SMP logic running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:6c3b4d44ba2838f00614a5a2d777d4401e0bfd71:bisect-linux 2014-02-17 03:59:30: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/6c3b4d44ba2838f00614a5a2d777d4401e0bfd71' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-03:59:30 6c3b4d44ba2838f00614a5a2d777d4401e0bfd71 compiling 11 real 22 user 1 sys 213.88% cpu i386-randconfig-x1-02152208 2014-02-17-03:59:47 detecting boot state 3.13.0-11329-g6c3b4d4... 2. 5.. 6 7 8 10 12 14. 17 18.. 20 21 22. 24.. 25. 26......... 27 28.... 29. 30. 35. 36. 37 40. 45 49. 54. 57.... 58.. 59.. 60 SUCCESS Bisecting: 0 revisions left to test after this (roughly 0 steps) [38033c37faab850ed5d33bb675c4de6c66be84d8] sched: Push down pre_schedule() and idle_balance() running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:38033c37faab850ed5d33bb675c4de6c66be84d8:bisect-linux 2014-02-17 04:35:48: cmd_fail: '/bin/grep' '-r' '--include=dmesg-*' '-s' '-l' 'EIP is at pick_next_task+0x' '/kernel/i386-randconfig-x1-02152208/38033c37faab850ed5d33bb675c4de6c66be84d8' , ret=2, ref: /kernel-tests/failed-cmd/bee-grep-kbuild.log 2014-02-17-04:35:48 38033c37faab850ed5d33bb675c4de6c66be84d8 compiling 11 real 27 user 2 sys 264.70% cpu i386-randconfig-x1-02152208 2014-02-17-04:36:04 detecting boot state 3.13.0-11330-g38033c3. TEST FAILURE [ 2.955218] .................................... done. [ 2.955914] Using IPI No-Shortcut mode [ 2.959790] Unregister pv shared memory for cpu 0 [ 2.980986] BUG: unable to handle kernel NULL pointer dereference at 00000040 [ 2.982096] IP: [] pick_next_task+0xa/0x48 [ 2.982854] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 2.983247] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 2.983247] CPU: 0 PID: 9 Comm: migration/0 Not tainted 3.13.0-11330-g38033c3 #117 [ 2.983247] task: cbc5d580 ti: cbc9c000 task.ti: cbc9c000 [ 2.983247] EIP: 0060:[] EFLAGS: 00010046 CPU: 0 [ 2.983247] EIP is at pick_next_task+0xa/0x48 [ 2.983247] EAX: ce79c100 EBX: ce79c100 ECX: 00000000 EDX: 00000000 [ 2.983247] ESI: ce79c100 EDI: 00000000 EBP: cbc9ddc0 ESP: cbc9ddb4 [ 2.983247] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 2.983247] CR0: 8005003b CR2: 00000040 CR3: 03769000 CR4: 000006b0 [ 2.983247] Stack: [ 2.983247] ce79c100 ce79c100 c3653870 cbc9dde4 c3061e64 00000200 cbc5d580 00000082 [ 2.983247] 00000000 c3654764 00000000 c3653870 cbc9de00 c30595ed 00000000 00000008 [ 2.983247] ffffffff cbc55e6c 00000000 cbc9de14 c30598a5 fffffffb 00000000 00000000 [ 2.983247] Call Trace: [ 2.983247] [] migration_call+0x10b/0x188 [ 2.983247] [] notifier_call_chain+0x32/0x4b [ 2.983247] [] __raw_notifier_call_chain+0x1e/0x23 [ 2.983247] [] __cpu_notify+0x24/0x3e [ 2.983247] [] cpu_notify+0x18/0x1a [ 2.983247] [] take_cpu_down+0x22/0x32 [ 2.983247] [] multi_cpu_stop+0x80/0xce [ 2.983247] [] ? __stop_cpus+0x55/0x55 [ 2.983247] [] cpu_stopper_thread+0x80/0x111 [ 2.983247] [] ? __lock_acquire.isra.27+0x1cb/0x4ea [ 2.983247] [] ? __schedule+0x375/0x55c [ 2.983247] [] ? lock_acquire+0x93/0xe0 [ 2.983247] [] ? lock_release+0x16d/0x1b1 [ 2.983247] [] ? _raw_spin_unlock_irqrestore+0x44/0x4f [ 2.983247] [] smpboot_thread_fn+0x15d/0x173 [ 2.983247] [] ? smpboot_unpark_thread+0x2e/0x2e [ 2.983247] [] kthread+0x8d/0x92 [ 2.983247] [] ? __queue_work+0x20/0x205 [ 2.983247] [] ret_from_kernel_thread+0x1b/0x28 [ 2.983247] [] ? __kthread_parkme+0x55/0x55 [ 2.983247] Code: 00 ba 01 00 00 00 89 f0 eb 0e 89 f0 e8 b1 11 3a 00 ba 01 00 00 00 89 d8 e8 fc 18 3a 00 5b 5e 5d c3 55 89 e5 57 89 d7 56 89 c6 53 <81> 7a 40 34 c3 40 c3 74 07 bb 60 c4 40 c3 eb 23 8b 40 6c 39 46 [ 2.983247] EIP: [] pick_next_task+0xa/0x48 SS:ESP 0068:cbc9ddb4 [ 2.983247] CR2: 0000000000000040 [ 2.983247] ---[ end trace 6a8ca456afcbe2dc ]--- [ 2.983247] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-x1-02152208/38033c37faab850ed5d33bb675c4de6c66be84d8/dmesg-quantal-inn-19:20140217043624:i386-randconfig-x1-02152208:3.13.0-11330-g38033c3:117 0:1:1 all_good:bad:all_bad boots 38033c37faab850ed5d33bb675c4de6c66be84d8 is the first bad commit commit 38033c37faab850ed5d33bb675c4de6c66be84d8 Author: Peter Zijlstra Date: Thu Jan 23 20:32:21 2014 +0100 sched: Push down pre_schedule() and idle_balance() This patch both merged idle_balance() and pre_schedule() and pushes both of them into pick_next_task(). Conceptually pre_schedule() and idle_balance() are rather similar, both are used to pull more work onto the current CPU. We cannot however first move idle_balance() into pre_schedule_fair() since there is no guarantee the last runnable task is a fair task, and thus we would miss newidle balances. Similarly, the dl and rt pre_schedule calls must be ran before idle_balance() since their respective tasks have higher priority and it would not do to delay their execution searching for less important tasks first. However, by noticing that pick_next_tasks() already traverses the sched_class hierarchy in the right order, we can get the right behaviour and do away with both calls. We must however change the special case optimization to also require that prev is of sched_class_fair, otherwise we can miss doing a dl or rt pull where we needed one. Signed-off-by: Peter Zijlstra Cc: Linus Torvalds Cc: Andrew Morton Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/n/tip-a8k6vvaebtn64nie345kx1je@git.kernel.org Signed-off-by: Ingo Molnar :040000 040000 d2f9095eb132a0acdce4abea2a86178f3c4122f7 da09aee8d4c0e4557f111a49bb26246743192299 M kernel bisect run success exit /c/kernel-tests/linear-bisect:163:in `exit' /c/kernel-tests/linear-bisect:163:in `git_bisect' /c/kernel-tests/linear-bisect:290:in `linear_bisect' /c/kernel-tests/linear-bisect:294:in `
' exit /c/kernel-tests/linear-bisect:163:in `exit' /c/kernel-tests/linear-bisect:163:in `git_bisect' /c/kernel-tests/linear-bisect:290:in `linear_bisect' /c/kernel-tests/linear-bisect:294:in `
' ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:6c3b4d44ba2838f00614a5a2d777d4401e0bfd71:bisect-linux 2014-02-17-04:36:36 6c3b4d44ba2838f00614a5a2d777d4401e0bfd71 reuse /kernel/i386-randconfig-x1-02152208/6c3b4d44ba2838f00614a5a2d777d4401e0bfd71/vmlinuz-3.13.0-11329-g6c3b4d4 2014-02-17-04:36:36 detecting boot state .. 1. 3. 4... 5 7 10. 11. 12. 13... 14 18 20 21 23 25 27 30 31 32. 33 34 37 40 42 44. 47 49 52 55 60 62 63 64 65.......... 67 68. 70... 72 73 83... 84....... 85............................... 89 94 102 107 111 119.. 120... 121. 123 124.... 125.................. 126............................................................... 147 148 149 151.... 152 154 156. 168 173 177 180 SUCCESS ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:da8d308fbdb8360078786b3e125238122c4fc611:bisect-linux TEST FAILURE [ 14.132434] .................................... done. [ 14.134623] Using IPI No-Shortcut mode [ 14.138862] Unregister pv shared memory for cpu 0 [ 14.266748] BUG: unable to handle kernel NULL pointer dereference at 00000040 [ 14.268255] IP: [] pick_next_task+0xa/0x48 [ 14.268255] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 14.268255] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 14.268255] CPU: 0 PID: 9 Comm: migration/0 Not tainted 3.14.0-rc2-next-20140214-03226-gda8d308 #1 [ 14.268255] task: cbc5d580 ti: cbc9c000 task.ti: cbc9c000 [ 14.268255] EIP: 0060:[] EFLAGS: 00010046 CPU: 0 [ 14.268255] EIP is at pick_next_task+0xa/0x48 [ 14.268255] EAX: ce79c100 EBX: ce79c100 ECX: 00000003 EDX: 00000000 [ 14.268255] ESI: ce79c100 EDI: 00000000 EBP: cbc9ddc0 ESP: cbc9ddb4 [ 14.268255] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 14.268255] CR0: 8005003b CR2: 00000040 CR3: 02f73000 CR4: 000006b0 [ 14.268255] Stack: [ 14.268255] ce79c100 ce79c100 c2e5b930 cbc9dde4 c2861de5 00000200 cbc5d580 00000082 [ 14.268255] 00000000 c2e5c864 00000000 c2e5b930 cbc9de00 c2859574 00000000 00000008 [ 14.268255] ffffffff cbc55e6c 00000000 cbc9de14 c285982c fffffffb 00000000 00000000 [ 14.268255] Call Trace: [ 14.268255] [] migration_call+0x10b/0x188 [ 14.268255] [] notifier_call_chain+0x32/0x4b [ 14.268255] [] __raw_notifier_call_chain+0x1e/0x23 [ 14.268255] [] __cpu_notify+0x24/0x3e [ 14.268255] [] cpu_notify+0x18/0x1a [ 14.268255] [] take_cpu_down+0x22/0x32 [ 14.268255] [] multi_cpu_stop+0x80/0xce [ 14.268255] [] ? __stop_cpus+0x55/0x55 [ 14.268255] [] cpu_stopper_thread+0x80/0x111 [ 14.268255] [] ? finish_task_switch+0x33/0xba [ 14.268255] [] ? __schedule+0x377/0x55e [ 14.268255] [] ? __lock_acquire.isra.27+0x1be/0x4dd [ 14.268255] [] ? lock_acquire+0x93/0xe0 [ 14.268255] [] ? lock_release+0x16d/0x1b1 [ 14.268255] [] ? _raw_spin_unlock_irqrestore+0x44/0x4f [ 14.268255] [] smpboot_thread_fn+0x15d/0x173 [ 14.268255] [] ? smpboot_unpark_thread+0x2e/0x2e [ 14.268255] [] kthread+0x8d/0x92 [ 14.268255] [] ? __queue_work+0xb6/0x205 [ 14.268255] [] ret_from_kernel_thread+0x1b/0x28 [ 14.268255] [] ? __kthread_parkme+0x55/0x55 [ 14.268255] Code: 00 ba 01 00 00 00 89 f0 eb 0e 89 f0 e8 b9 4f 3a 00 ba 01 00 00 00 89 d8 e8 04 57 3a 00 5b 5e 5d c3 55 89 e5 57 89 d7 56 89 c6 53 <81> 7a 40 74 03 c1 c2 74 07 bb a0 04 c1 c2 eb 23 8b 40 6c 39 46 [ 14.268255] EIP: [] pick_next_task+0xa/0x48 SS:ESP 0068:cbc9ddb4 [ 14.268255] CR2: 0000000000000040 [ 14.268255] ---[ end trace c84483296ee08ed5 ]--- [ 14.268255] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-snb-2:20140216231414:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-snb-7:20140216231358:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-xgwo-6:20140216231324:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-lkp-sbx04-56:20140215221715:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-inn-17:20140216231355:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-lkp-sbx04-20:20140215221658:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-lkp-sbx04-26:20140215221656:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-lkp-sbx04-28:20140215221702:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-stoakley-4:20140215221715:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-jaketown-12:20140216231405:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-snb-3:20140216231410:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-lkp-sbx04-86:20140215221701:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-lkp-sbx04-21:20140215221704:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-jaketown-10:20140216231351:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 4:14:15 all_good:bad:all_bad boots [detached HEAD da85a25] Revert "sched: Push down pre_schedule() and idle_balance()" Committer: Wu Fengguang Your name and email address were configured automatically based on your username and hostname. Please check that they are accurate. You can suppress this message by setting them explicitly: git config --global user.name "Your Name" git config --global user.email you@example.com After doing this, you may fix the identity used for this commit with: git commit --amend --reset-author 6 files changed, 52 insertions(+), 44 deletions(-) ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:da85a25b62dd9ca75ec64f6e0d6cdcbaa5752479:bisect-linux 2014-02-17-06:32:10 da85a25b62dd9ca75ec64f6e0d6cdcbaa5752479 compiling 2014-02-17-06:32:59 detecting boot state 3.14.0-rc2-next-20140214-03227-gda85a25................ 1 7 11 13 18 21 24. 25... 27 28 29............................. 30. 43 53 67 73 77 78. 82. 84 85 86. 87.. 89 90 91 93. 94. 95 96 100 101 103 104. 105 108 109 110.. 111 116 117 119. 121 122 123 124 125... 126...... 127. 128.... 129. 131... 132............................. 138 157 161 178....... 179........ 180 SUCCESS ========= upstream ========= Fetching linus From git://gitmirror/linus 946dd68..6d0abec master -> linus/master * [new tag] v3.14-rc3 -> v3.14-rc3 Warning: you are leaving 1 commit behind, not connected to any of your branches: da85a25 Revert "sched: Push down pre_schedule() and idle_balance()" If you want to keep them by creating a new branch, this may be a good time to do so with: git branch new_branch_name da85a25 HEAD is now at 6d0abec... Linux 3.14-rc3 ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:6d0abeca3242a88cab8232e4acd7e2bf088f3bc2:bisect-linux 2014-02-17-08:04:04 6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 compiling 2014-02-17-08:04:48 detecting boot state 3.14.0-rc3................. 1 4.. 5 6. 7 10 11. 13.. 14...... 15.. 16 18 23 24 26 28 29 30 33 36 40.... 41 42......... 43 44 45.. 47. 48 49 51........ 52 58 60 61. 62 64 69. 70 73 76. 79 81 82 84 86. 87 89 94 95 97............................................................. 98 101 111 134 140 160 172 176 177 178............. 179.............................................................................................................................................................................................................................................................................................................2014-02-17 12:12:20 add_to_run_queue 1 ..................................... 180 SUCCESS ========= linux-next ========= Previous HEAD position was 6d0abec... Linux 3.14-rc3 HEAD is now at da8d308... Add linux-next specific files for 20140214 ls -a /kernel-tests/run-queue/kvm/i386-randconfig-x1-02152208/next:master:da8d308fbdb8360078786b3e125238122c4fc611:bisect-linux TEST FAILURE [ 14.132434] .................................... done. [ 14.134623] Using IPI No-Shortcut mode [ 14.138862] Unregister pv shared memory for cpu 0 [ 14.266748] BUG: unable to handle kernel NULL pointer dereference at 00000040 [ 14.268255] IP: [] pick_next_task+0xa/0x48 [ 14.268255] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 14.268255] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 14.268255] CPU: 0 PID: 9 Comm: migration/0 Not tainted 3.14.0-rc2-next-20140214-03226-gda8d308 #1 [ 14.268255] task: cbc5d580 ti: cbc9c000 task.ti: cbc9c000 [ 14.268255] EIP: 0060:[] EFLAGS: 00010046 CPU: 0 [ 14.268255] EIP is at pick_next_task+0xa/0x48 [ 14.268255] EAX: ce79c100 EBX: ce79c100 ECX: 00000003 EDX: 00000000 [ 14.268255] ESI: ce79c100 EDI: 00000000 EBP: cbc9ddc0 ESP: cbc9ddb4 [ 14.268255] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 14.268255] CR0: 8005003b CR2: 00000040 CR3: 02f73000 CR4: 000006b0 [ 14.268255] Stack: [ 14.268255] ce79c100 ce79c100 c2e5b930 cbc9dde4 c2861de5 00000200 cbc5d580 00000082 [ 14.268255] 00000000 c2e5c864 00000000 c2e5b930 cbc9de00 c2859574 00000000 00000008 [ 14.268255] ffffffff cbc55e6c 00000000 cbc9de14 c285982c fffffffb 00000000 00000000 [ 14.268255] Call Trace: [ 14.268255] [] migration_call+0x10b/0x188 [ 14.268255] [] notifier_call_chain+0x32/0x4b [ 14.268255] [] __raw_notifier_call_chain+0x1e/0x23 [ 14.268255] [] __cpu_notify+0x24/0x3e [ 14.268255] [] cpu_notify+0x18/0x1a [ 14.268255] [] take_cpu_down+0x22/0x32 [ 14.268255] [] multi_cpu_stop+0x80/0xce [ 14.268255] [] ? __stop_cpus+0x55/0x55 [ 14.268255] [] cpu_stopper_thread+0x80/0x111 [ 14.268255] [] ? finish_task_switch+0x33/0xba [ 14.268255] [] ? __schedule+0x377/0x55e [ 14.268255] [] ? __lock_acquire.isra.27+0x1be/0x4dd [ 14.268255] [] ? lock_acquire+0x93/0xe0 [ 14.268255] [] ? lock_release+0x16d/0x1b1 [ 14.268255] [] ? _raw_spin_unlock_irqrestore+0x44/0x4f [ 14.268255] [] smpboot_thread_fn+0x15d/0x173 [ 14.268255] [] ? smpboot_unpark_thread+0x2e/0x2e [ 14.268255] [] kthread+0x8d/0x92 [ 14.268255] [] ? __queue_work+0xb6/0x205 [ 14.268255] [] ret_from_kernel_thread+0x1b/0x28 [ 14.268255] [] ? __kthread_parkme+0x55/0x55 [ 14.268255] Code: 00 ba 01 00 00 00 89 f0 eb 0e 89 f0 e8 b9 4f 3a 00 ba 01 00 00 00 89 d8 e8 04 57 3a 00 5b 5e 5d c3 55 89 e5 57 89 d7 56 89 c6 53 <81> 7a 40 74 03 c1 c2 74 07 bb a0 04 c1 c2 eb 23 8b 40 6c 39 46 [ 14.268255] EIP: [] pick_next_task+0xa/0x48 SS:ESP 0068:cbc9ddb4 [ 14.268255] CR2: 0000000000000040 [ 14.268255] ---[ end trace c84483296ee08ed5 ]--- [ 14.268255] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-snb-2:20140216231414:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-snb-7:20140216231358:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-xgwo-6:20140216231324:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-lkp-sbx04-56:20140215221715:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-inn-17:20140216231355:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-lkp-sbx04-20:20140215221658:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-lkp-sbx04-26:20140215221656:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-lkp-sbx04-28:20140215221702:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-stoakley-4:20140215221715:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-yocto-jaketown-12:20140216231405:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-snb-3:20140216231410:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-lkp-sbx04-86:20140215221701:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-lkp-sbx04-21:20140215221704:i386-randconfig-x1-02152208:: /kernel/i386-randconfig-x1-02152208/da8d308fbdb8360078786b3e125238122c4fc611/dmesg-quantal-jaketown-10:20140216231351:i386-randconfig-x1-02152208:3.14.0-rc2-next-20140214-03226-gda8d308:1 4:14:15 all_good:bad:all_bad boots