HEAD is now at d476269... 0day head guard for 'devel-hourly-2014072909' git checkout 64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91:bisect-linux-3 2014-07-29-10:36:41 64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 waiting for completion of /kbuild-tests/build-queue/jaketown-consumer/x86_64-randconfig-hsxa1-07291824-64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91/vmlinuz-3.16.0-rc7 2014-07-29-10:46:41 detecting boot state .. 13 16 SUCCESS bisect: good commit 64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 git bisect start d4762699d270faa2e5f8cc9b4a1feefb98270e5b 64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 -- /c/kernel-tests/linear-bisect: ["-b", "d4762699d270faa2e5f8cc9b4a1feefb98270e5b", "-g", "64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91", "/c/kernel-tests/bisect-test-boot-failure.sh", "/c/boot-bisect/linux-3/obj-bisect"] Bisecting: 3810 revisions left to test after this (roughly 12 steps) [c34f8002be490ebe4490ed028648598c8067fff7] Merge 'skn/cacheinfo' into devel-hourly-2014072909 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:c34f8002be490ebe4490ed028648598c8067fff7:bisect-linux-3 2014-07-29-10:50:22 c34f8002be490ebe4490ed028648598c8067fff7 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-c34f8002be490ebe4490ed028648598c8067fff7 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/c34f8002be490ebe4490ed028648598c8067fff7 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-c34f8002be490ebe4490ed028648598c8067fff7 waiting for completion of /kbuild-tests/build-queue/lkp-hsx01-consumer/x86_64-randconfig-hsxa1-07291824-c34f8002be490ebe4490ed028648598c8067fff7 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/c34f8002be490ebe4490ed028648598c8067fff7/vmlinuz-3.16.0-rc7-wl-ath-02093-gc34f800 2014-07-29-10:53:23 detecting boot state . 9. 16 SUCCESS Bisecting: 1717 revisions left to test after this (roughly 11 steps) [27df6032094f4633a974397e845f76a6ed00bf89] Merge 'jolsa-perf/perf/ctf_convert_4' into devel-hourly-2014072909 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:27df6032094f4633a974397e845f76a6ed00bf89:bisect-linux-3 2014-07-29-10:55:24 27df6032094f4633a974397e845f76a6ed00bf89 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-27df6032094f4633a974397e845f76a6ed00bf89 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/27df6032094f4633a974397e845f76a6ed00bf89 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-27df6032094f4633a974397e845f76a6ed00bf89 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/27df6032094f4633a974397e845f76a6ed00bf89/vmlinuz-3.16.0-rc7-wl-ath-03112-g27df603 2014-07-29-10:57:24 detecting boot state . 16 SUCCESS Bisecting: 698 revisions left to test after this (roughly 10 steps) [93bb3907de114a5ada548126cdd99475fd2b5ae8] Merge 'jcmvbkbc-xtensa/xtensa-debug' into devel-hourly-2014072909 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:93bb3907de114a5ada548126cdd99475fd2b5ae8:bisect-linux-3 2014-07-29-10:58:25 93bb3907de114a5ada548126cdd99475fd2b5ae8 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-93bb3907de114a5ada548126cdd99475fd2b5ae8 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/93bb3907de114a5ada548126cdd99475fd2b5ae8 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-93bb3907de114a5ada548126cdd99475fd2b5ae8 waiting for completion of /kbuild-tests/build-queue/lkp-hsx01-smoke/x86_64-randconfig-hsxa1-07291824-93bb3907de114a5ada548126cdd99475fd2b5ae8 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/93bb3907de114a5ada548126cdd99475fd2b5ae8/vmlinuz-3.16.0-rc7-wl-ath-03367-g93bb390 2014-07-29-11:22:25 detecting boot state .. 10...... 16 SUCCESS Bisecting: 443 revisions left to test after this (roughly 9 steps) [8d443796938e40aeedf7e9b38d56729fc3070d18] Merge 'wireless-testing/master' into devel-hourly-2014072909 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:8d443796938e40aeedf7e9b38d56729fc3070d18:bisect-linux-3 2014-07-29-11:27:32 8d443796938e40aeedf7e9b38d56729fc3070d18 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-8d443796938e40aeedf7e9b38d56729fc3070d18 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/8d443796938e40aeedf7e9b38d56729fc3070d18 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-8d443796938e40aeedf7e9b38d56729fc3070d18 waiting for completion of /kbuild-tests/build-queue/jaketown-consumer/x86_64-randconfig-hsxa1-07291824-8d443796938e40aeedf7e9b38d56729fc3070d18 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/8d443796938e40aeedf7e9b38d56729fc3070d18/vmlinuz-3.16.0-rc7-wl-ath-03783-g8d44379 2014-07-29-12:24:32 detecting boot state .. 12 13 15...... 16 SUCCESS Bisecting: 27 revisions left to test after this (roughly 5 steps) [e45ccc6c7f65c2d6823eaf4c082417c455b9af4b] Merge 'robclark/msm-next' into devel-hourly-2014072909 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:e45ccc6c7f65c2d6823eaf4c082417c455b9af4b:bisect-linux-3 2014-07-29-12:30:57 e45ccc6c7f65c2d6823eaf4c082417c455b9af4b compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-e45ccc6c7f65c2d6823eaf4c082417c455b9af4b Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/e45ccc6c7f65c2d6823eaf4c082417c455b9af4b waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-e45ccc6c7f65c2d6823eaf4c082417c455b9af4b kernel: /kernel/x86_64-randconfig-hsxa1-07291824/e45ccc6c7f65c2d6823eaf4c082417c455b9af4b/vmlinuz-3.16.0-rc7-wl-ath-03799-ge45ccc6 2014-07-29-12:33:57 detecting boot state .. 15... 16 SUCCESS Bisecting: 11 revisions left to test after this (roughly 4 steps) [21fa7826ce4c9938067972a47d8fa8fdba2805a3] Merge 'rcu/rcu/rcu_tasks' into devel-hourly-2014072909 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:21fa7826ce4c9938067972a47d8fa8fdba2805a3:bisect-linux-3 2014-07-29-12:38:03 21fa7826ce4c9938067972a47d8fa8fdba2805a3 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-21fa7826ce4c9938067972a47d8fa8fdba2805a3 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-21fa7826ce4c9938067972a47d8fa8fdba2805a3 waiting for completion of /kbuild-tests/build-queue/lkp-hsx01-consumer/x86_64-randconfig-hsxa1-07291824-21fa7826ce4c9938067972a47d8fa8fdba2805a3 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/vmlinuz-3.16.0-rc7-wl-ath-03809-g21fa782 2014-07-29-12:41:14 detecting boot state . TEST FAILURE [ 1.466517] Freeing unused kernel memory: 1884K (ffff880002029000 - ffff880002200000) [ 1.472765] Freeing unused kernel memory: 1852K (ffff880002631000 - ffff880002800000) [ 1.478389] random: init urandom read with 5 bits of entropy available [ 1.483923] BUG: sleeping function called from invalid context at /kbuild/src/consumer/kernel/rcu/update.c:881 [ 1.485635] in_atomic(): 1, irqs_disabled(): 0, pid: 92, name: hostname [ 1.486694] CPU: 0 PID: 92 Comm: hostname Not tainted 3.16.0-rc7-wl-ath-03809-g21fa782 #2 [ 1.488114] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 1.489637] ffff88000b72a130 ffff88001324be88 ffffffff81ff9f58 ffff88000b72a140 [ 1.491535] ffff88001324be98 ffffffff810cbae9 ffff88001324beb0 ffffffff81109269 [ 1.492917] ffff88000b72a750 ffff88001324bec0 ffffffff81110281 ffff88001324bf38 [ 1.494314] Call Trace: [ 1.494877] [] dump_stack+0x85/0xba [ 1.495618] [] __might_sleep+0x129/0x180 [ 1.496506] [] exit_rcu_tasks+0x29/0xa0 [ 1.497263] [] exit_rcu+0x11/0x20 [ 1.498096] [] do_exit+0xa05/0xfc0 [ 1.498826] [] ? proc_sys_poll_notify+0x39/0x50 [ 1.499776] [] do_group_exit+0x46/0x130 [ 1.500803] [] SyS_exit_group+0x17/0x20 [ 1.501621] [] system_call_fastpath+0x16/0x1b [ 1.539435] init: Failed to create pty - disabling logging for job [ 1.540951] init: Temporary process spawn error: No such file or directory [ 1.551330] init: Failed to create pty - disabling logging for job /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-108:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-11:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-120:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-121:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-12:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-17:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-24:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-26:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-30:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-34:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-44:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-52:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-61:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-79:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-85:20140729123349:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/21fa7826ce4c9938067972a47d8fa8fdba2805a3/dmesg-quantal-ivb44-97:20140729123349:x86_64-randconfig-hsxa1-07291824:: 0:16:16 all_good:bad:all_bad boots 2014-07-29 12:41:53 REPEAT COUNT: 20 # /c/boot-bisect/linux-3/obj-bisect/.repeat linear-bisect: bad branch may be rcu/rcu/rcu_tasks linear-bisect: handle over to git bisect linear-bisect: git bisect start 21fa7826ce4c9938067972a47d8fa8fdba2805a3 e45ccc6c7f65c2d6823eaf4c082417c455b9af4b -- Previous HEAD position was 21fa782... Merge 'rcu/rcu/rcu_tasks' into devel-hourly-2014072909 HEAD is now at b4d3318... Merge remote-tracking branch 'crypto/master' Bisecting: 4 revisions left to test after this (roughly 2 steps) [41d8e02382e1e79c17a78c0898bc938531000716] rcutorture: Add torture tests for RCU-tasks linear-bisect: git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:41d8e02382e1e79c17a78c0898bc938531000716:bisect-linux-3 2014-07-29-12:53:52 41d8e02382e1e79c17a78c0898bc938531000716 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-41d8e02382e1e79c17a78c0898bc938531000716 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/41d8e02382e1e79c17a78c0898bc938531000716 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-41d8e02382e1e79c17a78c0898bc938531000716 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/41d8e02382e1e79c17a78c0898bc938531000716/vmlinuz-3.16.0-rc1-00007-g41d8e02 2014-07-29-12:55:55 detecting boot state .......... 2 4.... 20 SUCCESS Bisecting: 2 revisions left to test after this (roughly 1 step) [4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3] rcu: Add stall-warning checks for RCU-tasks running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3:bisect-linux-3 2014-07-29-13:05:52 4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3/vmlinuz-3.16.0-rc1-00009-g4e73c5a 2014-07-29-13:08:52 detecting boot state .. 18 20 SUCCESS Bisecting: 0 revisions left to test after this (roughly 1 step) [ebc6436166ae583e6db906eb7ffdb1c198921380] rcu: Improve RCU-tasks energy efficiency running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:ebc6436166ae583e6db906eb7ffdb1c198921380:bisect-linux-3 2014-07-29-13:10:54 ebc6436166ae583e6db906eb7ffdb1c198921380 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-ebc6436166ae583e6db906eb7ffdb1c198921380 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/ebc6436166ae583e6db906eb7ffdb1c198921380 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-ebc6436166ae583e6db906eb7ffdb1c198921380 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/ebc6436166ae583e6db906eb7ffdb1c198921380/vmlinuz-3.16.0-rc1-00011-gebc6436 2014-07-29-13:13:11 detecting boot state ............. TEST FAILURE [ 0.927384] Write protecting the kernel read-only data: 24576k [ 0.932753] Freeing unused kernel memory: 2000K (ffff88000200c000 - ffff880002200000) [ 0.937994] Freeing unused kernel memory: 1872K (ffff88000262c000 - ffff880002800000) [ 0.941839] BUG: sleeping function called from invalid context at /kbuild/src/consumer/kernel/rcu/update.c:881 [ 0.943116] in_atomic(): 1, irqs_disabled(): 0, pid: 83, name: mount [ 0.943907] CPU: 0 PID: 83 Comm: mount Not tainted 3.16.0-rc1-00011-gebc6436 #2 [ 0.944908] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 0.945976] ffff88001042fff0 ffff88001011fe88 ffffffff81fdcd15 ffff880010430000 [ 0.947265] ffff88001011fe98 ffffffff810cc549 ffff88001011feb0 ffffffff81109b09 [ 0.948558] ffff880010430608 ffff88001011fec0 ffffffff81110b11 ffff88001011ff38 [ 0.949838] Call Trace: [ 0.950264] [] dump_stack+0x85/0xba [ 0.950950] [] __might_sleep+0x129/0x180 [ 0.951678] [] exit_rcu_tasks+0x29/0xa0 [ 0.952387] [] exit_rcu+0x11/0x20 [ 0.953057] [] do_exit+0xa05/0xfc0 [ 0.953729] [] ? SyS_mount+0x10d/0x140 [ 0.954430] [] do_group_exit+0x46/0x130 [ 0.955144] [] SyS_exit_group+0x17/0x20 [ 0.955859] [] system_call_fastpath+0x16/0x1b [ 1.354059] tsc: Refined TSC clocksource calibration: 2693.505 MHz Kernel tests: Boot OK! [ 2.354139] BUG: sleeping function called from invalid context at /kbuild/src/consumer/kernel/rcu/update.c:881 [ 2.355541] in_atomic(): 1, irqs_disabled(): 0, pid: 642, name: kwatchdog [ 2.356414] CPU: 0 PID: 642 Comm: kwatchdog Not tainted 3.16.0-rc1-00011-gebc6436 #2 [ 2.357491] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 2.358597] ffff88000f812980 ffff8800100fbe18 ffffffff81fdcd15 ffff88000f812990 [ 2.359915] ffff8800100fbe28 ffffffff810cc549 ffff8800100fbe40 ffffffff81109b09 [ 2.361248] ffff88000f812f98 ffff8800100fbe50 ffffffff81110b11 ffff8800100fbec8 [ 2.362578] Call Trace: [ 2.363016] [] dump_stack+0x85/0xba [ 2.363707] [] __might_sleep+0x129/0x180 [ 2.364452] [] exit_rcu_tasks+0x29/0xa0 [ 2.365185] [] exit_rcu+0x11/0x20 [ 2.365866] [] do_exit+0xa05/0xfc0 [ 2.366570] [] ? __clocksource_select+0x19a/0x280 [ 2.367383] [] ? __clocksource_watchdog_kthread+0x1e0/0x1e0 [ 2.368409] [] kthread+0xee/0x140 [ 2.369090] [] ? kthread_stop+0xe0/0xe0 [ 2.369812] [] ret_from_fork+0x7c/0xb0 [ 2.370546] [] ? kthread_stop+0xe0/0xe0 [ 4.328327] BUG: sleeping function called from invalid context at /kbuild/src/consumer/kernel/rcu/update.c:881 [ 4.329975] in_atomic(): 1, irqs_disabled(): 0, pid: 102, name: udevd [ 4.330783] CPU: 0 PID: 102 Comm: udevd Not tainted 3.16.0-rc1-00011-gebc6436 #2 [ 4.331795] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 4.332870] ffff880010437450 ffff88001015fe88 ffffffff81fdcd15 ffff880010437460 [ 4.334160] ffff88001015fe98 ffffffff810cc549 ffff88001015feb0 ffffffff81109b09 [ 4.335435] ffff880010437a68 ffff88001015fec0 ffffffff81110b11 ffff88001015ff38 [ 4.336723] Call Trace: [ 4.337145] [] dump_stack+0x85/0xba [ 4.337816] [] __might_sleep+0x129/0x180 [ 4.338535] [] exit_rcu_tasks+0x29/0xa0 [ 4.339247] [] exit_rcu+0x11/0x20 [ 4.339905] [] do_exit+0xa05/0xfc0 [ 4.340576] [] do_group_exit+0x46/0x130 [ 4.341283] [] SyS_exit_group+0x17/0x20 [ 4.344272] [] system_call_fastpath+0x16/0x1b Elapsed time: 5 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/x86_64-randconfig-hsxa1-07291824/ebc6436166ae583e6db906eb7ffdb1c198921380/vmlinuz-3.16.0-rc1-00011-gebc6436 -append 'hung_task_panic=1 earlyprintk=ttyS0,115200 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=10 softlockup_panic=1 nmi_watchdog=panic prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:ebc6436166ae583e6db906eb7ffdb1c198921380:bisect-linux-3/.vmlinuz-ebc6436166ae583e6db906eb7ffdb1c198921380-20140729211307-12-ivb44 branch=linux-devel/devel-hourly-2014072909 BOOT_IMAGE=/kernel/x86_64-randconfig-hsxa1-07291824/ebc6436166ae583e6db906eb7ffdb1c198921380/vmlinuz-3.16.0-rc1-00011-gebc6436 drbd.minor_count=8' -initrd /kernel-tests/initrd/yocto-minimal-x86_64.cgz -m 320 -smp 1 -net nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-yocto-ivb44-108 -serial file:/dev/shm/kboot/serial-yocto-ivb44-108 -daemonize -display none -monitor null /kernel/x86_64-randconfig-hsxa1-07291824/ebc6436166ae583e6db906eb7ffdb1c198921380/dmesg-yocto-ivb44-108:20140729131317:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/ebc6436166ae583e6db906eb7ffdb1c198921380/dmesg-yocto-ivb44-22:20140729131315:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/ebc6436166ae583e6db906eb7ffdb1c198921380/dmesg-yocto-ivb44-40:20140729131316:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/ebc6436166ae583e6db906eb7ffdb1c198921380/dmesg-yocto-ivb44-77:20140729131315:x86_64-randconfig-hsxa1-07291824:: 0:4:4 all_good:bad:all_bad boots 2014-07-29 13:21:07 REPEAT COUNT: 20 # /c/boot-bisect/linux-3/obj-bisect/.repeat Bisecting: 0 revisions left to test after this (roughly 0 steps) [bd14ddc45614b61210fdf0ee4e94152948dd9d5e] rcu: Make RCU-tasks track exiting tasks running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-3/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:bd14ddc45614b61210fdf0ee4e94152948dd9d5e:bisect-linux-3 2014-07-29-13:21:08 bd14ddc45614b61210fdf0ee4e94152948dd9d5e compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-bd14ddc45614b61210fdf0ee4e94152948dd9d5e Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-bd14ddc45614b61210fdf0ee4e94152948dd9d5e waiting for completion of /kbuild-tests/build-queue/lkp-hsx01-smoke/x86_64-randconfig-hsxa1-07291824-bd14ddc45614b61210fdf0ee4e94152948dd9d5e kernel: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/vmlinuz-3.16.0-rc1-00010-gbd14ddc 2014-07-29-13:24:08 detecting boot state .............................. TEST FAILURE [ 4.864964] Freeing unused kernel memory: 2000K (ffff88000200c000 - ffff880002200000) [ 4.903825] Freeing unused kernel memory: 1880K (ffff88000262a000 - ffff880002800000) [ 4.933061] random: init urandom read with 6 bits of entropy available [ 4.950587] BUG: sleeping function called from invalid context at /kbuild/src/smoke/kernel/rcu/update.c:871 [ 4.953973] in_atomic(): 1, irqs_disabled(): 0, pid: 93, name: hostname [ 4.956021] CPU: 0 PID: 93 Comm: hostname Not tainted 3.16.0-rc1-00010-gbd14ddc #1 [ 4.972989] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 4.976090] ffff88000efd4270 ffff880013213e88 ffffffff81fdcc15 ffff88000efd4280 [ 4.979353] ffff880013213e98 ffffffff810cc549 ffff880013213eb0 ffffffff811099f9 [ 5.000523] ffff88000efd4888 ffff880013213ec0 ffffffff81110a01 ffff880013213f38 [ 5.003782] Call Trace: [ 5.004916] [] dump_stack+0x85/0xba [ 5.006545] [] __might_sleep+0x129/0x180 [ 5.025045] [] exit_rcu_tasks+0x29/0xa0 [ 5.027137] [] exit_rcu+0x11/0x20 [ 5.028928] [] do_exit+0xa05/0xfc0 [ 5.030571] [] do_group_exit+0x46/0x130 [ 5.037353] [] SyS_exit_group+0x17/0x20 [ 5.050900] [] system_call_fastpath+0x16/0x1b [ 5.270119] init: Failed to create pty - disabling logging for job [ 5.293904] init: Temporary process spawn error: No such file or directory [ 5.327094] init: Failed to create pty - disabling logging for job /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-yocto-lkp-nex05-43:20140729134201:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-102:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-155:20140729134219:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-157:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-182:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-29:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-33:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-yocto-lkp-nex05-11:20140729134201:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-yocto-lkp-nex05-12:20140729134201:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-138:20140729134219:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-169:20140729134219:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-21:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-62:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-109:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-115:20140729134219:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-151:20140729134219:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-163:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-184:20140729134220:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-30:20140729134219:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/bd14ddc45614b61210fdf0ee4e94152948dd9d5e/dmesg-quantal-lkp-nex05-85:20140729134219:x86_64-randconfig-hsxa1-07291824:: 0:20:20 all_good:bad:all_bad boots 2014-07-29 13:41:13 REPEAT COUNT: 20 # /c/boot-bisect/linux-3/obj-bisect/.repeat bd14ddc45614b61210fdf0ee4e94152948dd9d5e is the first bad commit commit bd14ddc45614b61210fdf0ee4e94152948dd9d5e Author: Paul E. McKenney Date: Mon Jul 28 12:41:25 2014 -0700 rcu: Make RCU-tasks track exiting tasks This commit adds synchronization with exiting tasks, so that RCU-tasks avoids waiting on tasks that no longer exist. Signed-off-by: Paul E. McKenney Conflicts: kernel/rcu/update.c :040000 040000 5745b5166767cd6baf5bd6e64fe0249798c7a322 2fe863a7a5df0c54b345324f3cee9c846f08905a M include :040000 040000 a1605c55168c26e6614957eef850c82fca6430f2 f6a9c69b5b5304b0f289609483a06d6e48604712 M kernel bisect run success Previous HEAD position was bd14ddc... rcu: Make RCU-tasks track exiting tasks HEAD is now at 4e73c5a... rcu: Add stall-warning checks for RCU-tasks ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3:bisect-linux-3 2014-07-29-13:43:35 4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3 reuse /kernel/x86_64-randconfig-hsxa1-07291824/4e73c5aafbe9108c83de0f8f5294e6ccad2e29c3/vmlinuz-3.16.0-rc1-00009-g4e73c5a 2014-07-29-13:43:35 detecting boot state .. 60 SUCCESS Previous HEAD position was 4e73c5a... rcu: Add stall-warning checks for RCU-tasks HEAD is now at d476269... 0day head guard for 'devel-hourly-2014072909' ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linux-devel:devel-hourly-2014072909:d4762699d270faa2e5f8cc9b4a1feefb98270e5b:bisect-linux-3 TEST FAILURE [ 2.606913] Freeing unused kernel memory: 1884K (ffff880002029000 - ffff880002200000) [ 2.617637] Freeing unused kernel memory: 1864K (ffff88000262e000 - ffff880002800000) [ 2.633989] random: init urandom read with 5 bits of entropy available [ 2.640803] BUG: sleeping function called from invalid context at /kbuild/src/smoke/kernel/rcu/update.c:881 [ 2.643121] in_atomic(): 1, irqs_disabled(): 0, pid: 91, name: hostname [ 2.644691] CPU: 0 PID: 91 Comm: hostname Not tainted 3.16.0-rc7-wl-ath-03810-gd476269 #57 [ 2.646780] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 2.648766] ffff8800113bdb60 ffff88001323be88 ffffffff81ff9f58 ffff8800113bdb70 [ 2.664163] ffff88001323be98 ffffffff810cbae9 ffff88001323beb0 ffffffff81109269 [ 2.666240] ffff8800113be180 ffff88001323bec0 ffffffff81110281 ffff88001323bf38 [ 2.668261] Call Trace: [ 2.668929] [] dump_stack+0x85/0xba [ 2.669998] [] __might_sleep+0x129/0x180 [ 2.671145] [] exit_rcu_tasks+0x29/0xa0 [ 2.672281] [] exit_rcu+0x11/0x20 [ 2.673334] [] do_exit+0xa05/0xfc0 [ 2.674406] [] do_group_exit+0x46/0x130 [ 2.675654] [] SyS_exit_group+0x17/0x20 [ 2.676938] [] system_call_fastpath+0x16/0x1b [ 2.805725] init: Failed to create pty - disabling logging for job [ 2.806732] init: Temporary process spawn error: No such file or directory [ 2.822187] init: Failed to create pty - disabling logging for job /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-quantal-ivb43-93:20140729104403:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-quantal-ivb43-30:20140729104403:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-quantal-ivb43-41:20140729104356:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-yocto-ivb43-125:20140729104355:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-yocto-ivb43-60:20140729104356:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-quantal-ivb43-61:20140729104404:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-quantal-ivb43-87:20140729104403:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-yocto-ivb43-16:20140729104354:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-quantal-ivb43-48:20140729103729:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-yocto-ivb43-56:20140729104355:x86_64-randconfig-hsxa1-07291824:: /kernel/x86_64-randconfig-hsxa1-07291824/d4762699d270faa2e5f8cc9b4a1feefb98270e5b/dmesg-quantal-ivb43-20:20140729104356:x86_64-randconfig-hsxa1-07291824:: 0:11:11 all_good:bad:all_bad boots HEAD is now at d476269 0day head guard for 'devel-hourly-2014072909' ========= linus/master ========= Previous HEAD position was d476269... 0day head guard for 'devel-hourly-2014072909' HEAD is now at 31dab71... Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/linus:master:31dab719fa50cf56d56d3dc25980fecd336f6ca8:bisect-linux-3 2014-07-29-14:32:16 31dab719fa50cf56d56d3dc25980fecd336f6ca8 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-31dab719fa50cf56d56d3dc25980fecd336f6ca8 Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/31dab719fa50cf56d56d3dc25980fecd336f6ca8 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-31dab719fa50cf56d56d3dc25980fecd336f6ca8 waiting for completion of /kbuild-tests/build-queue/lkp-hsx01-consumer/x86_64-randconfig-hsxa1-07291824-31dab719fa50cf56d56d3dc25980fecd336f6ca8 kernel: /kernel/x86_64-randconfig-hsxa1-07291824/31dab719fa50cf56d56d3dc25980fecd336f6ca8/vmlinuz-3.16.0-rc7-00007-g31dab71 2014-07-29-14:35:16 detecting boot state .. 12 23 60 SUCCESS ========= next/master ========= From git://gitmirror/next + 8009dc9...e41a278 akpm -> next/akpm (forced update) + 4d19543...0252633 akpm-base -> next/akpm-base (forced update) + 5a7439e...e40cff4 master -> next/master (forced update) 82e13c7..64aa90f stable -> next/stable From git://gitmirror/next * [new tag] next-20140728 -> next-20140728 Previous HEAD position was 31dab71... Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 HEAD is now at e40cff4... Add linux-next specific files for 20140728 ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-hsxa1-07291824/next:master:e40cff4a7990e5d73eaad0a2f2593fe725e24cdd:bisect-linux-3 2014-07-29-15:15:54 e40cff4a7990e5d73eaad0a2f2593fe725e24cdd compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-e40cff4a7990e5d73eaad0a2f2593fe725e24cdd Check for kernel in /kernel/x86_64-randconfig-hsxa1-07291824/e40cff4a7990e5d73eaad0a2f2593fe725e24cdd waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-hsxa1-07291824-e40cff4a7990e5d73eaad0a2f2593fe725e24cdd waiting for completion of /kbuild-tests/build-queue/jaketown-consumer/x86_64-randconfig-hsxa1-07291824-e40cff4a7990e5d73eaad0a2f2593fe725e24cdd kernel: /kernel/x86_64-randconfig-hsxa1-07291824/e40cff4a7990e5d73eaad0a2f2593fe725e24cdd/vmlinuz-3.16.0-rc7-next-20140728 2014-07-29-15:23:54 detecting boot state .. 14 19 52 60 SUCCESS