git checkout 0414855fdc4a40da05221fc6062cccbc0c30f169 ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:0414855fdc4a40da05221fc6062cccbc0c30f169:bisect-linux5 2014-03-06-15:57:29 0414855fdc4a40da05221fc6062cccbc0c30f169 compiling 288 real 1575 user 147 sys 596.85% cpu i386-randconfig-ba1-03061322 2014-03-06-16:03:37 detecting boot state 3.14.0-rc5... 4 10 20 SUCCESS bisect: good commit 0414855fdc4a40da05221fc6062cccbc0c30f169 git bisect start aafcfca36a7a26409af2ec2265927ed8ad6eb4b2 0414855fdc4a40da05221fc6062cccbc0c30f169 -- /c/kernel-tests/linear-bisect: ["-b", "aafcfca36a7a26409af2ec2265927ed8ad6eb4b2", "-g", "0414855fdc4a40da05221fc6062cccbc0c30f169", "/c/kernel-tests/bisect-test-boot-failure.sh", "/kernel-tests/linux5/obj-bisect"] Bisecting: 3857 revisions left to test after this (roughly 12 steps) [bda89c7567044071e93d8b1c4c2f6e383c0fd249] Merge 'drm/drm-next' into devel-hourly-2014030612 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:bda89c7567044071e93d8b1c4c2f6e383c0fd249:bisect-linux5 2014-03-06-16:06:46 bda89c7567044071e93d8b1c4c2f6e383c0fd249 compiling 449 real 1590 user 148 sys 386.95% cpu i386-randconfig-ba1-03061322 2014-03-06-16:15:38 detecting boot state 3.14.0-rc5-02330-gbda89c7......... 9 19 20 SUCCESS Bisecting: 1527 revisions left to test after this (roughly 11 steps) [8eb78a8e0bca474d486a0505a1d38488119e8602] Merge 'ath6kl/ath-next-test' into devel-hourly-2014030612 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:8eb78a8e0bca474d486a0505a1d38488119e8602:bisect-linux5 2014-03-06-16:21:52 8eb78a8e0bca474d486a0505a1d38488119e8602 compiling 134 real 1287 user 119 sys 1047.96% cpu i386-randconfig-ba1-03061322 2014-03-06-16:25:58 detecting boot state 3.14.0-rc5-03360-g8eb78a8...... 19 20 SUCCESS Bisecting: 497 revisions left to test after this (roughly 9 steps) [e4729df86820a7132e41d401525acf24e4a25040] Merge 'tip/x86/reboot' into devel-hourly-2014030612 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:e4729df86820a7132e41d401525acf24e4a25040:bisect-linux5 2014-03-06-16:30:07 e4729df86820a7132e41d401525acf24e4a25040 compiling 154 real 1613 user 148 sys 1140.14% cpu i386-randconfig-ba1-03061322 2014-03-06-16:35:53 detecting boot state 3.14.0-rc5-03795-ge4729df........ TEST FAILURE [ 4.293916] spin_lock-torture: Creating lock_torture_stats task [ 4.298597] spin_lock-torture: lock_torture_writer task started [ 11.110378] random: nonblocking pool is initialized [ 48.028386] BUG: soft lockup - CPU#0 stuck for 22s! [lock_torture_wr:27] [ 48.029371] Modules linked in: [ 48.029371] CPU: 0 PID: 27 Comm: lock_torture_wr Not tainted 3.14.0-rc5-03795-ge4729df #41 [ 48.029371] task: 88a2f000 ti: 8dc02000 task.ti: 8dfd8000 [ 48.029371] EIP: 0060:[<8109b10f>] EFLAGS: 00000202 CPU: 0 [ 48.029371] EIP is at stutter_wait+0x26/0x5a [ 48.029371] EAX: 00000002 EBX: 815a9ace ECX: 00000000 EDX: 00000000 [ 48.029371] ESI: 8d48d1f0 EDI: 00000000 EBP: 8dfd9efc ESP: 8dfd9ef8 [ 48.029371] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 [ 48.029371] CR0: 8005003b CR2: 8ddc4000 CR3: 01870000 CR4: 000006f0 [ 48.029371] Stack: [ 48.029371] 8d483f00 8dfd9f20 8106100a 815a9866 815abc5f 815a9845 00000000 8d483fe0 [ 48.029371] 8d48d1f0 81060f1a 8dfd9fac 8104c162 00000000 0000000c 8d48d1f0 00000000 [ 48.029371] 00000001 dead4ead ffffffff ffffffff 8187d858 00000000 00000000 815a602d [ 48.029371] Call Trace: [ 48.029371] [<8106100a>] lock_torture_writer+0xf0/0x13c [ 48.029371] [<81060f1a>] ? torture_lock_busted_write_unlock+0x5/0x5 [ 48.029371] [<8104c162>] kthread+0xb7/0xbc [ 48.029371] [<813f16fb>] ret_from_kernel_thread+0x1b/0x30 [ 48.029371] [<8104c0ab>] ? kthread_stop+0xaa/0xaa [ 48.029371] Code: 5b 58 5b 5d c3 55 89 e5 53 89 c3 eb 36 83 3d 0c d6 cd 81 00 74 17 a1 0c d6 cd 81 83 f8 01 75 02 eb 15 a1 0c d6 cd 81 85 c0 74 11 f5 b8 e8 03 00 00 e8 b6 e7 f9 ff e8 56 0f 35 00 89 d8 e8 90 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-snb-22:20140306163921:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-stoakley-4:20140306163922:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-stoakley-5:20140306163918:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-yocto-snb-18:20140306163920:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-yocto-snb-48:20140306163921:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-snb-35:20140306163924:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-yocto-snb-5:20140306163929:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-yocto-xgwo-6:20140306163931:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-xbm-3:20140306163937:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-xgwo-2:20140306163935:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-xgwo-5:20140306163942:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-yocto-snb-11:20140306163938:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-yocto-stoakley-6:20140306163934:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-snb-43:20140306163946:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-xgwo-1:20140306163951:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-quantal-xgwo-6:20140306163949:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 /kernel/i386-randconfig-ba1-03061322/e4729df86820a7132e41d401525acf24e4a25040/dmesg-yocto-bens-6:20140306163947:i386-randconfig-ba1-03061322:3.14.0-rc5-03795-ge4729df:41 0:17:13 all_good:bad:all_bad boots Bisecting: 435 revisions left to test after this (roughly 9 steps) [07c4534e0d92e9600243ec4f9e27bd337c0617ff] Merge 'ipsec-next/vti6' into devel-hourly-2014030612 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:07c4534e0d92e9600243ec4f9e27bd337c0617ff:bisect-linux5 2014-03-06-16:40:14 07c4534e0d92e9600243ec4f9e27bd337c0617ff compiling 407 real 1610 user 150 sys 432.32% cpu i386-randconfig-ba1-03061322 2014-03-06-16:49:04 detecting boot state 3.14.0-rc5-03539-g07c4534.. 5 13 17 20 SUCCESS Bisecting: 256 revisions left to test after this (roughly 9 steps) [ace3f54462b01d674389eb0627c933cb6230a57b] Merge 'rcu/rcu/dev' into devel-hourly-2014030612 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:ace3f54462b01d674389eb0627c933cb6230a57b:bisect-linux5 2014-03-06-16:52:22 ace3f54462b01d674389eb0627c933cb6230a57b compiling 816 real 1614 user 150 sys 216.16% cpu i386-randconfig-ba1-03061322 2014-03-06-17:08:32 detecting boot state 3.14.0-rc5-03678-gace3f54..... TEST FAILURE [ 2.585499] augmented rbtree testing -> 13408 cycles [ 3.135384] tsc: Refined TSC clocksource calibration: 2892.948 MHz [ 8.257119] random: nonblocking pool is initialized [ 40.016066] BUG: soft lockup - CPU#0 stuck for 23s! [lock_torture_wr:26] [ 40.016066] Modules linked in: [ 40.016066] CPU: 0 PID: 26 Comm: lock_torture_wr Not tainted 3.14.0-rc5-03678-gace3f54 #43 [ 40.016066] task: 88a2e000 ti: 8dc02000 task.ti: 8dfd6000 [ 40.016066] EIP: 0060:[<8109b0ff>] EFLAGS: 00000202 CPU: 0 [ 40.016066] EIP is at stutter_wait+0x26/0x5a [ 40.016066] EAX: 00000002 EBX: 815a9b52 ECX: 00000000 EDX: 00000000 [ 40.016066] ESI: 8b492198 EDI: 00000000 EBP: 8dfd7efc ESP: 8dfd7ef8 [ 40.016066] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 [ 40.016066] CR0: 8005003b CR2: 00000000 CR3: 01870000 CR4: 000006f0 [ 40.016066] Stack: [ 40.016066] 8b9c5100 8dfd7f20 81060ffa 815a98ea 815abce3 815a98c9 00000000 8b9c51b0 [ 40.016066] 8b492198 81060f0a 8dfd7fac 8104c152 00000000 0000000c 8b492198 00000000 [ 40.016066] 00000001 dead4ead ffffffff ffffffff 8187d858 00000000 00000000 815a60b1 [ 40.016066] Call Trace: [ 40.016066] [<81060ffa>] lock_torture_writer+0xf0/0x13c [ 40.016066] [<81060f0a>] ? torture_lock_busted_write_unlock+0x5/0x5 [ 40.016066] [<8104c152>] kthread+0xb7/0xbc [ 40.016066] [<813f179b>] ret_from_kernel_thread+0x1b/0x30 [ 40.016066] [<8104c09b>] ? kthread_stop+0xaa/0xaa [ 40.016066] Code: 5b 58 5b 5d c3 55 89 e5 53 89 c3 eb 36 83 3d 0c d6 cd 81 00 74 17 a1 0c d6 cd 81 83 f8 01 75 02 eb 15 a1 0c d6 cd 81 85 c0 74 11 f5 b8 e8 03 00 00 e8 b6 e7 f9 ff e8 f6 0f 35 00 89 d8 e8 90 /kernel/i386-randconfig-ba1-03061322/ace3f54462b01d674389eb0627c933cb6230a57b/dmesg-quantal-athens-48:20140306171025:i386-randconfig-ba1-03061322:3.14.0-rc5-03678-gace3f54:43 /kernel/i386-randconfig-ba1-03061322/ace3f54462b01d674389eb0627c933cb6230a57b/dmesg-yocto-xgwo-7:20140306171026:i386-randconfig-ba1-03061322:3.14.0-rc5-03678-gace3f54:43 /kernel/i386-randconfig-ba1-03061322/ace3f54462b01d674389eb0627c933cb6230a57b/dmesg-quantal-jaketown-13:20140306171034:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/ace3f54462b01d674389eb0627c933cb6230a57b/dmesg-quantal-xian-35:20140306171039:i386-randconfig-ba1-03061322:3.14.0-rc5-03678-gace3f54:43 /kernel/i386-randconfig-ba1-03061322/ace3f54462b01d674389eb0627c933cb6230a57b/dmesg-quantal-lkp-st01-11:20140306171044:i386-randconfig-ba1-03061322:3.14.0-rc5-03678-gace3f54:43 /kernel/i386-randconfig-ba1-03061322/ace3f54462b01d674389eb0627c933cb6230a57b/dmesg-quantal-bens-1:20140306171100:i386-randconfig-ba1-03061322:3.14.0-rc5-03678-gace3f54:43 0:6:5 all_good:bad:all_bad boots Bisecting: 139 revisions left to test after this (roughly 8 steps) [c236e3c6e2862c7d2d5f2f26eaa5ff86b896d1a0] Merge 'tip/x86/efi' into devel-hourly-2014030612 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:c236e3c6e2862c7d2d5f2f26eaa5ff86b896d1a0:bisect-linux5 2014-03-06-17:11:18 c236e3c6e2862c7d2d5f2f26eaa5ff86b896d1a0 compiling 433 real 1591 user 145 sys 400.50% cpu i386-randconfig-ba1-03061322 2014-03-06-17:20:11 detecting boot state 3.14.0-rc5-03573-gc236e3c......... 1 16 20 SUCCESS linear-bisect: bad branch may be rcu/rcu/dev linear-bisect: handle over to git bisect linear-bisect: git bisect start ace3f54462b01d674389eb0627c933cb6230a57b c236e3c6e2862c7d2d5f2f26eaa5ff86b896d1a0 -- Bisecting: 52 revisions left to test after this (roughly 6 steps) [b46f358ae5e3558a9072f0354128d5749a584d01] rcutorture: Place kvm-test-1-run.sh output into res directory linear-bisect: git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:b46f358ae5e3558a9072f0354128d5749a584d01:bisect-linux5 2014-03-06-17:26:29 b46f358ae5e3558a9072f0354128d5749a584d01 compiling 288 real 1605 user 149 sys 607.54% cpu i386-randconfig-ba1-03061322 2014-03-06-17:33:52 detecting boot state 3.14.0-rc3-00052-gb46f358... 15 20 SUCCESS Bisecting: 26 revisions left to test after this (roughly 5 steps) [f5604f67fe8cbd6f2088b20b9463f721aa613d4b] Merge branch 'torture.2014.02.23a' into HEAD running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:f5604f67fe8cbd6f2088b20b9463f721aa613d4b:bisect-linux5 2014-03-06-17:36:26 f5604f67fe8cbd6f2088b20b9463f721aa613d4b compiling 255 real 1563 user 143 sys 667.83% cpu i386-randconfig-ba1-03061322 2014-03-06-17:41:57 detecting boot state 3.14.0-rc3-00078-gf5604f6... 11 16 20 SUCCESS Bisecting: 13 revisions left to test after this (roughly 4 steps) [dd35b81c341c685bafd15bc9a6bfa79584e07b07] torture: Rename RCU_BUILDONLY to TORTURE_BUILDONLY running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:dd35b81c341c685bafd15bc9a6bfa79584e07b07:bisect-linux5 2014-03-06-17:45:00 dd35b81c341c685bafd15bc9a6bfa79584e07b07 compiling 107 real 1584 user 144 sys 1611.70% cpu i386-randconfig-ba1-03061322 2014-03-06-17:48:04 detecting boot state 3.14.0-rc3-00091-gdd35b81...... 20 SUCCESS Bisecting: 6 revisions left to test after this (roughly 3 steps) [8864f0996e8b7f07a536aa07553c4461cd5f4211] torture: Make "--dryrun script" output self-sufficient running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:8864f0996e8b7f07a536aa07553c4461cd5f4211:bisect-linux5 2014-03-06-17:51:38 8864f0996e8b7f07a536aa07553c4461cd5f4211 compiling 37 real 108 user 15 sys 327.35% cpu i386-randconfig-ba1-03061322 2014-03-06-17:53:50 detecting boot state 3.14.0-rc3-00098-g8864f09............................ 6 11 13 19.... 20 SUCCESS Bisecting: 3 revisions left to test after this (roughly 2 steps) [b2d777a6d9d64929b9701f1905fdeda8fc3cb16d] rcutorture: Print negatives for SRCU counter wraparound running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:b2d777a6d9d64929b9701f1905fdeda8fc3cb16d:bisect-linux5 2014-03-06-18:12:23 b2d777a6d9d64929b9701f1905fdeda8fc3cb16d compiling 21 real 105 user 15 sys 559.12% cpu i386-randconfig-ba1-03061322 2014-03-06-18:13:00 detecting boot state 3.14.0-rc3-00101-gb2d777a........................ 1 5............. 6 19 20 SUCCESS Bisecting: 1 revision left to test after this (roughly 1 step) [4c79d7d89902a2e9c96b3db5115af52b3cf94da9] torture: Report diagnostics from qemu running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:4c79d7d89902a2e9c96b3db5115af52b3cf94da9:bisect-linux5 2014-03-06-18:34:06 4c79d7d89902a2e9c96b3db5115af52b3cf94da9 compiling 67 real 104 user 15 sys 179.46% cpu i386-randconfig-ba1-03061322 2014-03-06-18:36:49 detecting boot state 3.14.0-rc3-00103-g4c79d7d..... 1 8 15 20 SUCCESS Bisecting: 0 revisions left to test after this (roughly 0 steps) [1f9c26968e1a501f3a839603c9633f21abca65b3] torture: Increase stutter-end intensity running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux5/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:1f9c26968e1a501f3a839603c9633f21abca65b3:bisect-linux5 2014-03-06-18:41:20 1f9c26968e1a501f3a839603c9633f21abca65b3 compiling 19 real 102 user 14 sys 598.49% cpu i386-randconfig-ba1-03061322 2014-03-06-18:41:51 detecting boot state 3.14.0-rc3-00104-g1f9c269... TEST FAILURE [ 2.115982] futex hash table entries: 256 (order: 1, 12288 bytes) [ 2.117756] Initialise system trusted keyring [ 8.432149] random: nonblocking pool is initialized [ 48.021058] BUG: soft lockup - CPU#0 stuck for 22s! [lock_torture_wr:27] [ 48.021058] Modules linked in: [ 48.021058] CPU: 0 PID: 27 Comm: lock_torture_wr Not tainted 3.14.0-rc3-00104-g1f9c269 #51 [ 48.021058] task: 88a2f000 ti: 8dc02000 task.ti: 8dfd8000 [ 48.021058] EIP: 0060:[<8109a31b>] EFLAGS: 00000202 CPU: 0 [ 48.021058] EIP is at stutter_wait+0x26/0x5a [ 48.021058] EAX: 00000002 EBX: 815a0f10 ECX: 00000000 EDX: 00000000 [ 48.021058] ESI: 8d117430 EDI: 00000000 EBP: 8dfd9efc ESP: 8dfd9ef8 [ 48.021058] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 [ 48.021058] CR0: 8005003b CR2: 00000000 CR3: 01862000 CR4: 000006f0 [ 48.021058] Stack: [ 48.021058] 8d68d400 8dfd9f20 8105fee3 815a0ca8 815a30c3 815a0c87 00000000 8d68d418 [ 48.021058] 8d117430 8105fdf3 8dfd9fac 8104b5cb 00000000 0000000c 8d117430 00000000 [ 48.021058] 00000001 dead4ead ffffffff ffffffff 8186f858 00000000 00000000 8159d54c [ 48.021058] Call Trace: [ 48.021058] [<8105fee3>] lock_torture_writer+0xf0/0x13c [ 48.021058] [<8105fdf3>] ? torture_lock_busted_write_unlock+0x5/0x5 [ 48.021058] [<8104b5cb>] kthread+0xb7/0xbc [ 48.021058] [<813e9f7b>] ret_from_kernel_thread+0x1b/0x30 [ 48.021058] [<8104b514>] ? kthread_stop+0xaa/0xaa [ 48.021058] Code: 5b 58 5b 5d c3 55 89 e5 53 89 c3 eb 36 83 3d ec f5 cc 81 00 74 17 a1 ec f5 cc 81 83 f8 01 75 02 eb 15 a1 ec f5 cc 81 85 c0 74 11 f5 b8 e8 03 00 00 e8 17 ea f9 ff e8 fa a5 34 00 89 d8 e8 90 /kernel/i386-randconfig-ba1-03061322/1f9c26968e1a501f3a839603c9633f21abca65b3/dmesg-quantal-stoakley-4:20140306184246:i386-randconfig-ba1-03061322:3.14.0-rc3-00104-g1f9c269:51 /kernel/i386-randconfig-ba1-03061322/1f9c26968e1a501f3a839603c9633f21abca65b3/dmesg-yocto-xian-15:20140306184246:i386-randconfig-ba1-03061322:3.14.0-rc3-00104-g1f9c269:51 /kernel/i386-randconfig-ba1-03061322/1f9c26968e1a501f3a839603c9633f21abca65b3/dmesg-yocto-xian-8:20140306184246:i386-randconfig-ba1-03061322:3.14.0-rc3-00104-g1f9c269:51 /kernel/i386-randconfig-ba1-03061322/1f9c26968e1a501f3a839603c9633f21abca65b3/dmesg-quantal-athens-46:20140306184253:i386-randconfig-ba1-03061322:3.14.0-rc3-00104-g1f9c269:51 /kernel/i386-randconfig-ba1-03061322/1f9c26968e1a501f3a839603c9633f21abca65b3/dmesg-yocto-athens-25:20140306184258:i386-randconfig-ba1-03061322:3.14.0-rc3-00104-g1f9c269:51 /kernel/i386-randconfig-ba1-03061322/1f9c26968e1a501f3a839603c9633f21abca65b3/dmesg-yocto-xian-4:20140306184258:i386-randconfig-ba1-03061322:3.14.0-rc3-00104-g1f9c269:51 /kernel/i386-randconfig-ba1-03061322/1f9c26968e1a501f3a839603c9633f21abca65b3/dmesg-quantal-xian-5:20140306184305:i386-randconfig-ba1-03061322:3.14.0-rc3-00104-g1f9c269:51 /kernel/i386-randconfig-ba1-03061322/1f9c26968e1a501f3a839603c9633f21abca65b3/dmesg-quantal-xian-6:20140306184305:i386-randconfig-ba1-03061322:3.14.0-rc3-00104-g1f9c269:51 /kernel/i386-randconfig-ba1-03061322/1f9c26968e1a501f3a839603c9633f21abca65b3/dmesg-yocto-lkp-st01-11:20140306184312:i386-randconfig-ba1-03061322:3.14.0-rc3-00104-g1f9c269:51 0:9:9 all_good:bad:all_bad boots 2014-03-06 18:43:23 REPEAT COUNT: 20 # /kernel-tests/linux5/obj-bisect/.repeat 1f9c26968e1a501f3a839603c9633f21abca65b3 is the first bad commit commit 1f9c26968e1a501f3a839603c9633f21abca65b3 Author: Paul E. McKenney Date: Tue Mar 4 11:03:21 2014 -0800 torture: Increase stutter-end intensity Currently, all stuttered kthreads block a jiffy at a time, which can result in them starting at different times. (Note: This is not an energy-efficiency problem unless you run torture tests in production, in which case you have other problems!) This commit increases the intensity of the restart event by causing kthreads to spin through the last jiffy, restarting when they see the variable change. Signed-off-by: Paul E. McKenney :040000 040000 48c46358ac40a3ff9e4beb4ec9c3343722c20f5e da546192376c7d0cbeb08610e156611cad86cbf6 M kernel bisect run success ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:4c79d7d89902a2e9c96b3db5115af52b3cf94da9:bisect-linux5 2014-03-06-18:43:24 4c79d7d89902a2e9c96b3db5115af52b3cf94da9 reuse /kernel/i386-randconfig-ba1-03061322/4c79d7d89902a2e9c96b3db5115af52b3cf94da9/vmlinuz-3.14.0-rc3-00103-g4c79d7d 2014-03-06-18:43:24 detecting boot state .. 20 29. 38 40 45 52 56................................................................................................................................................................................................ 59 60 SUCCESS ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:aafcfca36a7a26409af2ec2265927ed8ad6eb4b2:bisect-linux5 TEST FAILURE [ 5.804467] spin_lock-torture: Creating lock_torture_stats task [ 5.805670] spin_lock-torture: lock_torture_writer task started [ 9.995150] random: nonblocking pool is initialized [ 52.050039] BUG: soft lockup - CPU#0 stuck for 22s! [lock_torture_wr:27] [ 52.050039] Modules linked in: [ 52.050039] CPU: 0 PID: 27 Comm: lock_torture_wr Not tainted 3.14.0-rc5-03857-gaafcfca #2 [ 52.050039] task: 91fa9000 ti: 91c02000 task.ti: 91fba000 [ 52.050039] EIP: 0060:[<8109afde>] EFLAGS: 00000202 CPU: 0 [ 52.050039] EIP is at stutter_wait+0x1d/0x5a [ 52.050039] EAX: 00000002 EBX: 815a9cf2 ECX: 00000000 EDX: 00000000 [ 52.050039] ESI: 8e67c320 EDI: 00000000 EBP: 91fbbefc ESP: 91fbbef8 [ 52.050039] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 [ 52.050039] CR0: 8005003b CR2: 91dc4000 CR3: 0186f000 CR4: 000006f0 [ 52.050039] Stack: [ 52.050039] 8f235400 91fbbf20 81060f8e 815a9a86 815abef3 815a9a65 00000000 8f2354b0 [ 52.050039] 8e67c320 81060e9e 91fbbfac 8104c0f8 00000000 0000000c 8e67c320 00000000 [ 52.050039] 00000001 dead4ead ffffffff ffffffff 8187c858 00000000 00000000 815a6175 [ 52.050039] Call Trace: [ 52.050039] [<81060f8e>] lock_torture_writer+0xf0/0x13c [ 52.050039] [<81060e9e>] ? torture_lock_busted_write_unlock+0x5/0x5 [ 52.050039] [<8104c0f8>] kthread+0xb7/0xbc [ 52.050039] [<813f10bb>] ret_from_kernel_thread+0x1b/0x30 [ 52.050039] [<8104c041>] ? kthread_stop+0xaa/0xaa [ 52.050039] Code: 00 a1 3c c7 79 81 48 74 de 5b 58 5b 5d c3 55 89 e5 53 89 c3 eb 36 83 3d 0c c6 cd 81 00 74 17 a1 0c c6 cd 81 83 f8 01 75 02 eb 15 0c c6 cd 81 85 c0 74 11 eb f5 b8 e8 03 00 00 e8 74 e8 f9 ff /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-lkp-nex05-83:20140306155706:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-quantal-lkp-nex05-61:20140306141300:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-quantal-lkp-nex05-95:20140306141221:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-xgwo-6:20140306155658:i386-randconfig-ba1-03061322:3.14.0-rc5-03857-gaafcfca:2 /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-lkp-nex05-78:20140306155651:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-quantal-lkp-nex05-3:20140306155648:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-quantal-lkp-nex05-28:20140306141223:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-snb-35:20140306141251:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-lkp-nex05-68:20140306141225:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-lkp-nex05-3:20140306155637:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-lkp-nex05-67:20140306155645:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-quantal-bens-6:20140306155709:i386-randconfig-ba1-03061322:3.14.0-rc5-03857-gaafcfca:2 /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-quantal-lkp-nex05-44:20140306141211:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-lkp-nex05-40:20140306141257:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-lkp-nex05-85:20140306155703:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-quantal-lkp-nex04-85:20140306141254:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-yocto-lkp-nex05-33:20140306155732:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-quantal-lkp-nex05-31:20140306141255:i386-randconfig-ba1-03061322:: /kernel/i386-randconfig-ba1-03061322/aafcfca36a7a26409af2ec2265927ed8ad6eb4b2/dmesg-quantal-lkp-nex05-80:20140306155656:i386-randconfig-ba1-03061322:: 0:19:19 all_good:bad:all_bad boots [detached HEAD 7cd8d1c] Revert "torture: Increase stutter-end intensity" 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 1 file changed, 2 insertions(+), 10 deletions(-) ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:7cd8d1c19dd10cb6861bbf7111ba86ef7d262788:bisect-linux5 2014-03-06-20:26:44 7cd8d1c19dd10cb6861bbf7111ba86ef7d262788 compiling 2014-03-06-20:35:17 detecting boot state 3.14.0-rc5-03858-g7cd8d1c... 3 6 8 14 23 28. 34 51 54 57......... 58.............................................................................................................................................................................................................................................................................................................2014-03-06 23:17:57 add_to_run_queue 2 .. 60 SUCCESS ========= upstream ========= Warning: you are leaving 1 commit behind, not connected to any of your branches: 7cd8d1c Revert "torture: Increase stutter-end intensity" 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 7cd8d1c HEAD is now at c3bebc7... Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:c3bebc71c4bcdafa24b506adf0c1de3c1f77e2e0:bisect-linux5 2014-03-06-23:19:28 c3bebc71c4bcdafa24b506adf0c1de3c1f77e2e0 compiling 2014-03-06-23:21:33 detecting boot state 3.14.0-rc5-00185-gc3bebc7... 6 19 30 45 59 60 SUCCESS ========= linux-next ========= Fetching next From git://gitmirror/next + 6e76d85...d4bb2eb akpm -> next/akpm (forced update) + 5a39739...09de192 akpm-base -> next/akpm-base (forced update) + 1d9f38b...0ffb2fe master -> next/master (forced update) 0c0bd34..c3bebc7 stable -> next/stable * [new tag] next-20140306 -> next-20140306 Previous HEAD position was c3bebc7... Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net HEAD is now at 0ffb2fe... Add linux-next specific files for 20140306 ls -a /kernel-tests/run-queue/kvm/i386-randconfig-ba1-03061322/linux-devel:devel-hourly-2014030612:0ffb2fe7b9c30082876fa3a17da018bf0632cf03:bisect-linux5 2014-03-06-23:26:48 0ffb2fe7b9c30082876fa3a17da018bf0632cf03 compiling 2014-03-06-23:28:49 detecting boot state 3.14.0-rc5-next-20140306.. 1 10 28 42 55. 56 58... 59.............................................................................................................................................................................................................................................................................................................2014-03-07 02:06:29 add_to_run_queue 1 .... 60 SUCCESS