git checkout 09de192242d86ede449146ac423effca53bc1810 ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:09de192242d86ede449146ac423effca53bc1810:bisect-linux2 2014-03-07-03:12:34 09de192242d86ede449146ac423effca53bc1810 compiling 151 real 2795 user 216 sys 1983.00% cpu i386-randconfig-an0-03070034 2014-03-07-03:15:27 detecting boot state 3.14.0-rc5-06494-g09de192...... 1.... 4 6. 7... 9 10 11 12 13 15 16 18 20 SUCCESS bisect: good commit 09de192242d86ede449146ac423effca53bc1810 git bisect start 0ffb2fe7b9c30082876fa3a17da018bf0632cf03 09de192242d86ede449146ac423effca53bc1810 -- /c/kernel-tests/linear-bisect: ["-b", "0ffb2fe7b9c30082876fa3a17da018bf0632cf03", "-g", "09de192242d86ede449146ac423effca53bc1810", "/c/kernel-tests/bisect-test-boot-failure.sh", "/kernel-tests/linux2/obj-bisect"] Bisecting: 458 revisions left to test after this (roughly 9 steps) [439cde1f3d8230f858c0a55902381d24cd7a2df2] Merge branch 'akpm/master' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:439cde1f3d8230f858c0a55902381d24cd7a2df2:bisect-linux2 2014-03-07-03:28:59 439cde1f3d8230f858c0a55902381d24cd7a2df2 compiling 202 real 2794 user 217 sys 1487.83% cpu i386-randconfig-an0-03070034 2014-03-07-03:33:05 detecting boot state 3.14.0-rc5-06948-g439cde1........ TEST FAILURE [ 109.064454] #2: MTPAV on parallel port at 0x378 [ 109.228593] random: nonblocking pool is initialized [ 109.394801] Freeing unused kernel memory: 800K (c722f000 - c72f7000) [ 109.563839] BUG: using __this_cpu_add() in preemptible [00000000] code: swapper/0/1 [ 109.912866] caller is __this_cpu_preempt_check+0x3b/0x60 [ 110.092470] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc5-06948-g439cde1 #38 [ 110.465652] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 110.670497] 00000000 00000000 d203deec c68d939c 00000000 d203df10 c59f146d c6eedf24 [ 111.112310] d203df28 00000000 d20403d8 00000001 d203df28 d3b7d000 d203df58 c59f14cb [ 111.586156] d203df28 00000028 c6eed540 c705ab6a 68745f5f 635f7369 615f7570 29286464 [ 112.079740] Call Trace: [ 112.317513] [] dump_stack+0x4b/0x75 [ 112.559112] [] check_preemption_disabled+0xcd/0xe0 [ 112.798712] [] __this_cpu_preempt_check+0x3b/0x60 [ 113.034505] [] ? preempt_count_add+0x4b/0xa0 [ 113.271412] [] kmem_cache_alloc+0xc2/0x190 Elapsed time: 115 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/i386-randconfig-an0-03070034/439cde1f3d8230f858c0a55902381d24cd7a2df2/vmlinuz-3.14.0-rc5-06948-g439cde1 -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-an0-03070034/next:master:439cde1f3d8230f858c0a55902381d24cd7a2df2:bisect-linux2/.vmlinuz-439cde1f3d8230f858c0a55902381d24cd7a2df2-20140307033243-14-ivytown2 branch=next/master BOOT_IMAGE=/kernel/i386-randconfig-an0-03070034/439cde1f3d8230f858c0a55902381d24cd7a2df2/vmlinuz-3.14.0-rc5-06948-g439cde1' -initrd /kernel-tests/initrd/quantal-core-i386.cgz -m 320 -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1,hostfwd=tcp::11725-:22 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-quantal-ivytown2-14 -serial file:/dev/shm/kboot/serial-quantal-ivytown2-14 -daemonize -display none -monitor null /kernel/i386-randconfig-an0-03070034/439cde1f3d8230f858c0a55902381d24cd7a2df2/dmesg-quantal-ivytown2-27:20140307033643:i386-randconfig-an0-03070034:3.14.0-rc5-06948-g439cde1:38 /kernel/i386-randconfig-an0-03070034/439cde1f3d8230f858c0a55902381d24cd7a2df2/dmesg-yocto-ivytown2-25:20140307033643:i386-randconfig-an0-03070034:3.14.0-rc5-06948-g439cde1:38 /kernel/i386-randconfig-an0-03070034/439cde1f3d8230f858c0a55902381d24cd7a2df2/dmesg-quantal-ivytown2-14:20140307033651:i386-randconfig-an0-03070034:3.14.0-rc5-06948-g439cde1:38 /kernel/i386-randconfig-an0-03070034/439cde1f3d8230f858c0a55902381d24cd7a2df2/dmesg-quantal-ivytown2-9:20140307033648:i386-randconfig-an0-03070034:3.14.0-rc5-06948-g439cde1:38 0:4:4 all_good:bad:all_bad boots 2014-03-07 03:37:06 REPEAT COUNT: 20 # /kernel-tests/linux2/obj-bisect/.repeat Bisecting: 454 revisions left to test after this (roughly 9 steps) [ce34778eb4d9fa0aaaeae76c1068026ee5255fd7] Merge branch 'akpm-current/current' running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:ce34778eb4d9fa0aaaeae76c1068026ee5255fd7:bisect-linux2 2014-03-07-03:37:07 ce34778eb4d9fa0aaaeae76c1068026ee5255fd7 compiling 144 real 2836 user 217 sys 2115.02% cpu i386-randconfig-an0-03070034 2014-03-07-03:39:47 detecting boot state 3.14.0-rc5-06893-gce34778........ 2 3 6 8.. 9.... 10. 11 13... 14..... 18.............................. 19.... 20 SUCCESS Bisecting: 55 revisions left to test after this (roughly 6 steps) [117314461e82adabb6b78dcb03259da75b50833b] mm: don't implictly include linux/mm.h in linux/sched.h running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:117314461e82adabb6b78dcb03259da75b50833b:bisect-linux2 2014-03-07-04:14:20 117314461e82adabb6b78dcb03259da75b50833b compiling 140 real 2440 user 216 sys 1898.49% cpu i386-randconfig-an0-03070034 2014-03-07-04:16:56 detecting boot state 3.14.0-rc5-06894-g1173144...... 1 2 3. 8 9 11 13.... 14 15. 18... 19 20 SUCCESS linear-bisect: bad branch may be branch 'akpm/master' linear-bisect: handle over to git bisect linear-bisect: git bisect start 439cde1f3d8230f858c0a55902381d24cd7a2df2 117314461e82adabb6b78dcb03259da75b50833b -- Previous HEAD position was 1173144... mm: don't implictly include linux/mm.h in linux/sched.h HEAD is now at f71194a... Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Bisecting: 26 revisions left to test after this (roughly 5 steps) [9d58cf7a388c1b4a06cb335980eb1bb1352ba876] scheduler: replace __get_cpu_var with this_cpu_ptr linear-bisect: git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:9d58cf7a388c1b4a06cb335980eb1bb1352ba876:bisect-linux2 2014-03-07-04:30:39 9d58cf7a388c1b4a06cb335980eb1bb1352ba876 compiling 148 real 2780 user 247 sys 2041.72% cpu i386-randconfig-an0-03070034 2014-03-07-04:33:25 detecting boot state 3.14.0-rc5-06921-g9d58cf7..... TEST FAILURE [ 25.685041] IMA: No TPM chip found, activating TPM-bypass! [ 27.941051] input: PS/2 Logitech Wheel Mouse as /devices/platform/i8042/serio1/input/input6 [ 27.941279] evbug: Connected device: input6 (PS/2 Logitech Wheel Mouse at isa0060/serio1/input0) [ 28.011438] evbug: Event. Dev: input6, Type: 2, Code: 0, Value: 250 [ 28.011439] evbug: Event. Dev: input6, Type: 2, Code: 1, Value: -250 [ 28.011440] evbug: Event. Dev: input6, Type: 0, Code: 0, Value: 0 [ 71.490090] spin_lock-torture: Writes: Total: 4 Max/Min: 0/0 Fail: 0 [ 103.952362] console [netcon0] enabled [ 104.091660] netconsole: network logging started /kernel/i386-randconfig-an0-03070034/9d58cf7a388c1b4a06cb335980eb1bb1352ba876/dmesg-yocto-ivytown2-30:20140307043546:i386-randconfig-an0-03070034:3.14.0-rc5-06921-g9d58cf7:41 0:1:1 all_good:bad:all_bad boots 2014-03-07 04:35:57 REPEAT COUNT: 20 # /kernel-tests/linux2/obj-bisect/.repeat Bisecting: 13 revisions left to test after this (roughly 4 steps) [b2ff2cfebad92bebfca28bad650045821ed270c4] tracing: replace __get_cpu_var uses with this_cpu_ptr running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:b2ff2cfebad92bebfca28bad650045821ed270c4:bisect-linux2 2014-03-07-04:35:59 b2ff2cfebad92bebfca28bad650045821ed270c4 compiling 145 real 2782 user 213 sys 2061.74% cpu i386-randconfig-an0-03070034 2014-03-07-04:38:41 detecting boot state 3.14.0-rc5-06907-gb2ff2cf...... TEST FAILURE [ 111.534542] #1: Virtual MIDI Card 1 [ 111.683550] #2: MTPAV on parallel port at 0x378 [ 111.830439] Freeing unused kernel memory: 800K (d0e2f000 - d0ef7000) [ 111.984446] BUG: using __this_cpu_add() in preemptible [00000000] code: swapper/0/1 [ 112.303006] caller is __this_cpu_preempt_check+0x3b/0x60 [ 112.469627] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc5-06907-gb2ff2cf #42 [ 112.812058] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 112.996458] 00000000 00000000 d203deec d04d933c 00000000 d203df10 cf5f140d d0aedee8 [ 113.410146] d203df28 00000000 d20403d8 00000001 d203df28 d3b5d000 d203df58 cf5f146b [ 113.856240] d203df28 00000028 d0aed504 d0c5ab2e 68745f5f 635f7369 615f7570 29286464 [ 114.328911] Call Trace: [ 114.557130] [] dump_stack+0x4b/0x75 [ 114.786516] [] check_preemption_disabled+0xcd/0xe0 [ 115.017734] [] __this_cpu_preempt_check+0x3b/0x60 [ 115.249646] [] ? preempt_count_add+0x4b/0xa0 [ 115.483248] [] kmem_cache_alloc+0xc2/0x190 [ 115.716761] [] ? getname_kernel+0x3f/0x80 [ 115.952120] [] getname_kernel+0x3f/0x80 [ 116.182432] [] run_init_process+0xd/0x20 [ 116.406331] [] kernel_init+0x32/0xe0 [ 116.630890] [] ret_from_kernel_thread+0x1b/0x30 [ 116.850541] [] ? rest_init+0x70/0x70 /kernel/i386-randconfig-an0-03070034/b2ff2cfebad92bebfca28bad650045821ed270c4/dmesg-quantal-ivytown2-29:20140307044113:i386-randconfig-an0-03070034:3.14.0-rc5-06907-gb2ff2cf:42 /kernel/i386-randconfig-an0-03070034/b2ff2cfebad92bebfca28bad650045821ed270c4/dmesg-yocto-ivytown2-10:20140307044113:i386-randconfig-an0-03070034:3.14.0-rc5-06907-gb2ff2cf:42 /kernel/i386-randconfig-an0-03070034/b2ff2cfebad92bebfca28bad650045821ed270c4/dmesg-yocto-ivytown2-20:20140307044122:i386-randconfig-an0-03070034:3.14.0-rc5-06907-gb2ff2cf:42 /kernel/i386-randconfig-an0-03070034/b2ff2cfebad92bebfca28bad650045821ed270c4/dmesg-yocto-ivytown2-4:20140307044121:i386-randconfig-an0-03070034:3.14.0-rc5-06907-gb2ff2cf:42 /kernel/i386-randconfig-an0-03070034/b2ff2cfebad92bebfca28bad650045821ed270c4/dmesg-quantal-ivytown2-15:20140307044133:i386-randconfig-an0-03070034:3.14.0-rc5-06907-gb2ff2cf:42 /kernel/i386-randconfig-an0-03070034/b2ff2cfebad92bebfca28bad650045821ed270c4/dmesg-quantal-ivytown2-21:20140307044128:i386-randconfig-an0-03070034:3.14.0-rc5-06907-gb2ff2cf:42 0:6:6 all_good:bad:all_bad boots 2014-03-07 04:41:42 REPEAT COUNT: 20 # /kernel-tests/linux2/obj-bisect/.repeat Bisecting: 6 revisions left to test after this (roughly 3 steps) [6fb77936481538ba05726345d86af4b39128a8a9] arm: move arm_dma_limit to setup_dma_zone running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:6fb77936481538ba05726345d86af4b39128a8a9:bisect-linux2 2014-03-07-04:41:43 6fb77936481538ba05726345d86af4b39128a8a9 compiling 154 real 2790 user 213 sys 1944.10% cpu i386-randconfig-an0-03070034 2014-03-07-04:44:28 detecting boot state 3.14.0-rc5-06900-g6fb7793...... 2 3 4. 5 6 8 9. 10 11. 13 17. 18.... 19.......... 20 SUCCESS Bisecting: 3 revisions left to test after this (roughly 2 steps) [d1cea07efbfa2723ca1b83d3a69d1f1000896d4d] modules: use raw_cpu_write for initialization of per cpu refcount. running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:d1cea07efbfa2723ca1b83d3a69d1f1000896d4d:bisect-linux2 2014-03-07-05:03:30 d1cea07efbfa2723ca1b83d3a69d1f1000896d4d compiling 147 real 2773 user 250 sys 2044.59% cpu i386-randconfig-an0-03070034 2014-03-07-05:06:12 detecting boot state 3.14.0-rc5-06903-gd1cea07....... 2 4 5 8....... 9 14 16. 17......... 18. 19...................................................................................................... 20 SUCCESS Bisecting: 1 revision left to test after this (roughly 1 step) [a25982c15ae5298520033cd5848a82adf6a97376] percpu: add preemption checks to __this_cpu ops running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:a25982c15ae5298520033cd5848a82adf6a97376:bisect-linux2 2014-03-07-06:15:17 a25982c15ae5298520033cd5848a82adf6a97376 compiling 151 real 2767 user 211 sys 1971.90% cpu i386-randconfig-an0-03070034 2014-03-07-06:18:03 detecting boot state 3.14.0-rc5-06905-ga25982c.......... TEST FAILURE [ 112.468029] #1: Virtual MIDI Card 1 [ 112.468032] #2: MTPAV on parallel port at 0x378 [ 113.485033] Freeing unused kernel memory: 800K (cd62f000 - cd6f7000) [ 113.692824] BUG: using __this_cpu_add() in preemptible [00000000] code: swapper/0/1 [ 114.034075] caller is __this_cpu_preempt_check+0x3b/0x60 [ 114.203551] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc5-06905-ga25982c #45 [ 114.549281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 114.737708] 00000000 00000000 d203deec cccd931c 00000000 d203df10 cbdf13ed cd2edee8 [ 115.151355] d203df28 00000000 d20403d8 00000001 d203df28 d3b7d000 d203df58 cbdf144b [ 115.594889] d203df28 00000028 cd2ed504 cd45ab2e 68745f5f 635f7369 615f7570 29286464 [ 116.078579] Call Trace: [ 116.319686] [] dump_stack+0x4b/0x75 [ 116.558673] [] check_preemption_disabled+0xcd/0xe0 [ 116.788334] [] __this_cpu_preempt_check+0x3b/0x60 [ 117.029171] [] ? preempt_count_add+0x4b/0xa0 [ 117.265916] [] kmem_cache_alloc+0xbb/0x190 [ 117.510896] [] ? getname_kernel+0x3f/0x80 [ 117.744101] [] getname_kernel+0x3f/0x80 [ 117.964898] [] run_init_process+0xd/0x20 [ 118.185389] [] kernel_init+0x32/0xe0 Elapsed time: 120 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/i386-randconfig-an0-03070034/a25982c15ae5298520033cd5848a82adf6a97376/vmlinuz-3.14.0-rc5-06905-ga25982c -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-an0-03070034/next:master:a25982c15ae5298520033cd5848a82adf6a97376:bisect-linux2/.vmlinuz-a25982c15ae5298520033cd5848a82adf6a97376-20140307061759-18-ivytown2 branch=next/master BOOT_IMAGE=/kernel/i386-randconfig-an0-03070034/a25982c15ae5298520033cd5848a82adf6a97376/vmlinuz-3.14.0-rc5-06905-ga25982c' -initrd /kernel-tests/initrd/quantal-core-i386.cgz -m 320 -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1,hostfwd=tcp::12219-:22 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-quantal-ivytown2-18 -serial file:/dev/shm/kboot/serial-quantal-ivytown2-18 -daemonize -display none -monitor null /kernel/i386-randconfig-an0-03070034/a25982c15ae5298520033cd5848a82adf6a97376/dmesg-quantal-ivytown2-18:20140307062230:i386-randconfig-an0-03070034:3.14.0-rc5-06905-ga25982c:45 /kernel/i386-randconfig-an0-03070034/a25982c15ae5298520033cd5848a82adf6a97376/dmesg-quantal-ivytown2-22:20140307062227:i386-randconfig-an0-03070034:3.14.0-rc5-06905-ga25982c:45 /kernel/i386-randconfig-an0-03070034/a25982c15ae5298520033cd5848a82adf6a97376/dmesg-yocto-ivytown2-28:20140307062229:i386-randconfig-an0-03070034:3.14.0-rc5-06905-ga25982c:45 0:3:3 all_good:bad:all_bad boots 2014-03-07 06:23:11 REPEAT COUNT: 20 # /kernel-tests/linux2/obj-bisect/.repeat Bisecting: 0 revisions left to test after this (roughly 0 steps) [26d02cfa385067c39c0407b022c01a011c2fbb51] net: replace __this_cpu_inc in route.c with raw_cpu_inc running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux2/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:26d02cfa385067c39c0407b022c01a011c2fbb51:bisect-linux2 2014-03-07-06:23:15 26d02cfa385067c39c0407b022c01a011c2fbb51 compiling 155 real 2772 user 220 sys 1919.80% cpu i386-randconfig-an0-03070034 2014-03-07-06:26:18 detecting boot state 3.14.0-rc5-06904-g26d02cf........... 3 8....... 9.. 10 11. 12 13 14...... 15. 17 18 19 20 SUCCESS a25982c15ae5298520033cd5848a82adf6a97376 is the first bad commit commit a25982c15ae5298520033cd5848a82adf6a97376 Author: Christoph Lameter Date: Thu Mar 6 11:05:21 2014 +1100 percpu: add preemption checks to __this_cpu ops We define a check function in order to avoid trouble with the include files. Then the higher level __this_cpu macros are modified to invoke the preemption check. Signed-off-by: Christoph Lameter Acked-by: Ingo Molnar Cc: Tejun Heo Signed-off-by: Andrew Morton :040000 040000 367fc4609b3da43b376cd2a555b720810308d094 09b12c0a491a35b3ddcbbd6e9d5084c7196a53f3 M include :040000 040000 fd22664b0e6468f5500599f9a2489baa396639c8 ed17ccacf155ff57a59dbf915c1ee4a4d5137d3b M lib bisect run success ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:26d02cfa385067c39c0407b022c01a011c2fbb51:bisect-linux2 2014-03-07-06:46:51 26d02cfa385067c39c0407b022c01a011c2fbb51 reuse /kernel/i386-randconfig-an0-03070034/26d02cfa385067c39c0407b022c01a011c2fbb51/vmlinuz-3.14.0-rc5-06904-g26d02cf 2014-03-07-06:46:51 detecting boot state ......................... 4 8 10........ 12 14. 15 16 20 21 26..... 27 29 30 31 34 42 46 48... 49. 51 52...... 58 59 60 SUCCESS ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:0ffb2fe7b9c30082876fa3a17da018bf0632cf03:bisect-linux2 TEST FAILURE [ 108.629666] #2: MTPAV on parallel port at 0x378 [ 108.763914] random: nonblocking pool is initialized [ 108.899677] Freeing unused kernel memory: 800K (cf449000 - cf511000) [ 109.038582] BUG: using __this_cpu_add() in preemptible [00000000] code: swapper/0/1 [ 109.322810] caller is __this_cpu_preempt_check+0x3b/0x60 [ 109.472558] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc5-next-20140306-06952-g0ffb2fe #1 [ 109.781327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 109.945304] 00000000 00000000 d203deec ceaec747 00000000 d203df10 cdbefdcd cf10362c [ 110.314293] d203df28 00000000 d20403d8 00000001 d203df28 d3b85000 d203df58 cdbefe2b [ 110.713593] d203df28 00000028 cf102c14 cf274fc6 68745f5f 635f7369 615f7570 29286464 [ 111.144502] Call Trace: [ 111.350731] [] dump_stack+0x4b/0x75 [ 111.557561] [] check_preemption_disabled+0xcd/0xe0 [ 111.767089] [] __this_cpu_preempt_check+0x3b/0x60 [ 111.979170] [] ? preempt_count_add+0x4b/0xa0 [ 112.192206] [] kmem_cache_alloc+0xc2/0x190 [ 112.405488] [] ? getname_kernel+0x3f/0x80 [ 112.615766] [] getname_kernel+0x3f/0x80 [ 112.817741] [] run_init_process+0xd/0x20 [ 113.022098] [] kernel_init+0x32/0xe0 [ 113.219729] [] ret_from_kernel_thread+0x1b/0x30 [ 113.411297] [] ? rest_init+0x70/0x70 Elapsed time: 115 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/vmlinuz-3.14.0-rc5-next-20140306-06952-g0ffb2fe -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-an0-03070034/next:master:0ffb2fe7b9c30082876fa3a17da018bf0632cf03:bisect-linux2/.vmlinuz-0ffb2fe7b9c30082876fa3a17da018bf0632cf03-20140307031000-6-ivytown2 branch=next/master BOOT_IMAGE=/kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/vmlinuz-3.14.0-rc5-next-20140306-06952-g0ffb2fe' -initrd /kernel-tests/initrd/quantal-core-i386.cgz -m 320 -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1,hostfwd=tcp::11837-:22 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-quantal-ivytown2-15 -serial file:/dev/shm/kboot/serial-quantal-ivytown2-15 -daemonize -display none -monitor null /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-18:20140307011851:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-xgwo-4:20140307031612:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-25:20140307011840:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-1:20140307011900:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-lkp-st01-4:20140307012317:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-xian-7:20140307012512:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-xgwo-3:20140307031628:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-lkp-st01-2:20140307012329:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-roam-32:20140307012542:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-3:20140307011856:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-13:20140307031225:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-xgwo-1:20140307012248:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-8:20140307031238:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-bens-2:20140307031603:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-20:20140307031213:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-15:20140307031237:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-xgwo-7:20140307031706:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-10:20140307031225:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-19:20140307031238:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 0:19:19 all_good:bad:all_bad boots [detached HEAD cb19098] Revert "percpu: add preemption checks to __this_cpu ops" 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 2 files changed, 14 insertions(+), 45 deletions(-) ls -a /kernel-tests/run-queue/kvm/i386-randconfig-an0-03070034/next:master:cb19098c9fa7af13a3efbe02076e8a4b17d86e38:bisect-linux2 2014-03-07-07:23:26 cb19098c9fa7af13a3efbe02076e8a4b17d86e38 compiling 2014-03-07-07:26:13 detecting boot state 3.14.0-rc5-next-20140306-00001-gcb19098............................................ 3 7 17... 18.. 21 25 31 38 40 41 49 56 58 59... 60 SUCCESS ========= upstream ========= Warning: you are leaving 1 commit behind, not connected to any of your branches: cb19098 Revert "percpu: add preemption checks to __this_cpu ops" 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 cb19098 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-an0-03070034/next:master:c3bebc71c4bcdafa24b506adf0c1de3c1f77e2e0:bisect-linux2 2014-03-07-07:59:47 c3bebc71c4bcdafa24b506adf0c1de3c1f77e2e0 compiling 2014-03-07-08:02:33 detecting boot state 3.14.0-rc5-00185-gc3bebc7........ 1. 4 6 7 8 9 11. 12 25 29. 31 34 38 41 46 47. 48 53 55 56 58 59.... 60 SUCCESS ========= linux-next ========= 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-an0-03070034/next:master:0ffb2fe7b9c30082876fa3a17da018bf0632cf03:bisect-linux2 TEST FAILURE [ 108.629666] #2: MTPAV on parallel port at 0x378 [ 108.763914] random: nonblocking pool is initialized [ 108.899677] Freeing unused kernel memory: 800K (cf449000 - cf511000) [ 109.038582] BUG: using __this_cpu_add() in preemptible [00000000] code: swapper/0/1 [ 109.322810] caller is __this_cpu_preempt_check+0x3b/0x60 [ 109.472558] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc5-next-20140306-06952-g0ffb2fe #1 [ 109.781327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 109.945304] 00000000 00000000 d203deec ceaec747 00000000 d203df10 cdbefdcd cf10362c [ 110.314293] d203df28 00000000 d20403d8 00000001 d203df28 d3b85000 d203df58 cdbefe2b [ 110.713593] d203df28 00000028 cf102c14 cf274fc6 68745f5f 635f7369 615f7570 29286464 [ 111.144502] Call Trace: [ 111.350731] [] dump_stack+0x4b/0x75 [ 111.557561] [] check_preemption_disabled+0xcd/0xe0 [ 111.767089] [] __this_cpu_preempt_check+0x3b/0x60 [ 111.979170] [] ? preempt_count_add+0x4b/0xa0 [ 112.192206] [] kmem_cache_alloc+0xc2/0x190 [ 112.405488] [] ? getname_kernel+0x3f/0x80 [ 112.615766] [] getname_kernel+0x3f/0x80 [ 112.817741] [] run_init_process+0xd/0x20 [ 113.022098] [] kernel_init+0x32/0xe0 [ 113.219729] [] ret_from_kernel_thread+0x1b/0x30 [ 113.411297] [] ? rest_init+0x70/0x70 Elapsed time: 115 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/vmlinuz-3.14.0-rc5-next-20140306-06952-g0ffb2fe -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-an0-03070034/next:master:0ffb2fe7b9c30082876fa3a17da018bf0632cf03:bisect-linux2/.vmlinuz-0ffb2fe7b9c30082876fa3a17da018bf0632cf03-20140307031000-6-ivytown2 branch=next/master BOOT_IMAGE=/kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/vmlinuz-3.14.0-rc5-next-20140306-06952-g0ffb2fe' -initrd /kernel-tests/initrd/quantal-core-i386.cgz -m 320 -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1,hostfwd=tcp::11837-:22 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-quantal-ivytown2-15 -serial file:/dev/shm/kboot/serial-quantal-ivytown2-15 -daemonize -display none -monitor null /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-18:20140307011851:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-xgwo-4:20140307031612:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-25:20140307011840:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-1:20140307011900:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-lkp-st01-4:20140307012317:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-xian-7:20140307012512:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-xgwo-3:20140307031628:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-lkp-st01-2:20140307012329:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-roam-32:20140307012542:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-3:20140307011856:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-13:20140307031225:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-xgwo-1:20140307012248:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-8:20140307031238:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-bens-2:20140307031603:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-20:20140307031213:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-15:20140307031237:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-xgwo-7:20140307031706:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-yocto-ivytown2-10:20140307031225:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 /kernel/i386-randconfig-an0-03070034/0ffb2fe7b9c30082876fa3a17da018bf0632cf03/dmesg-quantal-ivytown2-19:20140307031238:i386-randconfig-an0-03070034:3.14.0-rc5-next-20140306-06952-g0ffb2fe:1 0:19:19 all_good:bad:all_bad boots