HEAD is now at 0dcebb8... 0day head guard for 'devel-hourly-2014050720' git checkout 89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linux-devel:devel-hourly-2014050720:89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd:bisect-linux8 2014-05-11-17:53:17 89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd reuse /kernel/x86_64-randconfig-s1-05080402/89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd/vmlinuz-3.15.0-rc4 2014-05-11-17:53:17 detecting boot state ......... 6.. 20 SUCCESS bisect: good commit 89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd git bisect start 0dcebb805ee5cb03202711908c828a76c60dc51e 89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd -- /c/kernel-tests/linear-bisect: ["-b", "0dcebb805ee5cb03202711908c828a76c60dc51e", "-g", "89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd", "/c/kernel-tests/bisect-test-boot-failure.sh", "/kernel-tests/linux8/obj-bisect"] Bisecting: 1656 revisions left to test after this (roughly 11 steps) [a2149d48144498ee00c03e7cfef13841dd459e65] Merge 'cgroup/review-unified-updates' into devel-hourly-2014050720 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linux-devel:devel-hourly-2014050720:a2149d48144498ee00c03e7cfef13841dd459e65:bisect-linux8 2014-05-11-17:59:49 a2149d48144498ee00c03e7cfef13841dd459e65 reuse /kernel/x86_64-randconfig-s1-05080402/a2149d48144498ee00c03e7cfef13841dd459e65/vmlinuz-3.15.0-rc4-00852-ga2149d4 2014-05-11-17:59:49 detecting boot state ... 16.............................................................................................................................................................................................................................................................................................................2014-05-11 20:32:20 add_to_run_queue 4 .. 20 SUCCESS Bisecting: 804 revisions left to test after this (roughly 10 steps) [88f3059da6b1c67e559fba548dc1442c4b7e846d] Merge 'cgroup/for-next' into devel-hourly-2014050720 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linux-devel:devel-hourly-2014050720:88f3059da6b1c67e559fba548dc1442c4b7e846d:bisect-linux8 2014-05-11-20:33:50 88f3059da6b1c67e559fba548dc1442c4b7e846d compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-s1-05080402-88f3059da6b1c67e559fba548dc1442c4b7e846d Check for kernel in /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-s1-05080402-88f3059da6b1c67e559fba548dc1442c4b7e846d waiting for completion of /kbuild-tests/build-queue/.x86_64-randconfig-s1-05080402-88f3059da6b1c67e559fba548dc1442c4b7e846d kernel: /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/vmlinuz-3.15.0-rc4-01035-g88f3059 2014-05-11-20:36:50 detecting boot state . TEST FAILURE [ 1.483595] Freeing unused kernel memory: 2684K (ffffffff816fc000 - ffffffff8199b000) [ 1.491875] random: init urandom read with 67 bits of entropy available [ 1.493185] kworker/u4:0 (87) used greatest stack depth: 5496 bytes left [ 1.493567] BUG: sleeping function called from invalid context at /kbuild/src/smoke/arch/x86/mm/fault.c:1167 [ 1.493568] in_atomic(): 0, irqs_disabled(): 1, pid: 1, name: init [ 1.493569] 1 lock held by init/1: [ 1.493588] #0: (&mm->mmap_sem){++++++}, at: [] __do_page_fault+0xc9/0x4d0 [ 1.493589] irq event stamp: 1051988 [ 1.493603] hardirqs last enabled at (1051987): [] retint_swapgs+0x13/0x25 [ 1.493605] hardirqs last disabled at (1051988): [] error_sti+0x5/0x6 [ 1.493607] softirqs last enabled at (1050592): [] unix_sock_destructor+0x53/0x100 [ 1.493608] softirqs last disabled at (1050590): [] unix_sock_destructor+0x53/0x100 [ 1.493612] CPU: 1 PID: 1 Comm: init Not tainted 3.15.0-rc4-01035-g88f3059 #1 [ 1.493612] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1.493614] 00007fff31878cb8 ffff880000063d60 ffffffff813d78e7 0000000000000029 [ 1.493615] ffff880000063d70 ffffffff81094dcd ffff880000063e70 ffffffff81038b54 [ 1.493616] ffff880000290908 0000000000000002 ffff8800138b80a8 0000000000000003 [ 1.493617] Call Trace: [ 1.493619] [] dump_stack+0x4d/0x66 [ 1.493626] [] __might_sleep+0xed/0x130 [ 1.493628] [] __do_page_fault+0xe4/0x4d0 [ 1.493631] [] ? local_clock+0x16/0x30 [ 1.493636] [] ? lock_release_holdtime.part.30+0xf/0x190 [ 1.493638] [] ? _raw_spin_unlock+0x22/0x30 [ 1.493640] [] ? vtime_account_user+0x8c/0xa0 [ 1.493646] [] ? context_tracking_user_exit+0xbb/0xd0 [ 1.493648] [] do_page_fault+0x31/0x70 [ 1.493654] [] do_async_page_fault+0x24/0xe0 [ 1.493656] [] async_page_fault+0x25/0x30 [ 1.493661] [] ? install_sysret_trampoline+0x25/0x70 [ 1.493662] [] retint_swapgs+0x18/0x25 [ 1.493665] ------------[ cut here ]------------ /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f1-16:20140511203600:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f1-73:20140511203600:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f3-21:20140511203536:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f3-63:20140511203536:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f4-49:20140511203556:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f4-84:20140511203556:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f4-93:20140511203559:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f4-97:20140511203556:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f3-17:20140511203539:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f3-81:20140511203539:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f4-114:20140511203556:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f4-30:20140511203556:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f4-40:20140511203601:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f4-54:20140511203556:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f4-70:20140511203556:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f4-72:20140511203559:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f4-97:20140511203600:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f4-2:20140511203602:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-yocto-f2-52:20140511203610:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 /kernel/x86_64-randconfig-s1-05080402/88f3059da6b1c67e559fba548dc1442c4b7e846d/dmesg-quantal-f3-91:20140511203553:x86_64-randconfig-s1-05080402:3.15.0-rc4-01035-g88f3059:1 0:20:20 all_good:bad:all_bad boots 2014-05-11 20:37:21 REPEAT COUNT: 20 # /kernel-tests/linux8/obj-bisect/.repeat Bisecting: 183 revisions left to test after this (roughly 8 steps) [cc71f24555d15787e3bc3de4c654b44db127d535] Merge 'kvm/queue' into devel-hourly-2014050720 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linux-devel:devel-hourly-2014050720:cc71f24555d15787e3bc3de4c654b44db127d535:bisect-linux8 TEST FAILURE [ 2.335612] Key type encrypted registered [ 2.344589] Freeing unused kernel memory: 2684K (ffffffff816fe000 - ffffffff8199d000) [ 2.353623] random: init urandom read with 66 bits of entropy available [ 2.355539] BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1167 [ 2.355604] ------------[ cut here ]------------ /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f2-38:20140508171946:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f2-60:20140508171946:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f1-116:20140508171933:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-quantal-f4-7:20140508171948:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f3-51:20140508171916:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-quantal-f4-44:20140508171948:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-quantal-f2-50:20140508171950:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-quantal-f1-9:20140508171938:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f4-84:20140508171936:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f3-2:20140508171925:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f4-66:20140508171933:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-quantal-f3-26:20140508171923:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f1-101:20140508171937:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-quantal-f2-91:20140508171956:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f4-114:20140508171938:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f1-38:20140508171936:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f2-1:20140508171952:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f3-29:20140508171920:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-yocto-f4-67:20140508171941:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 /kernel/x86_64-randconfig-s1-05080402/cc71f24555d15787e3bc3de4c654b44db127d535/dmesg-quantal-f4-32:20140508171948:x86_64-randconfig-s1-05080402:3.15.0-rc4-00961-gcc71f24:1 0:20:20 all_good:bad:all_bad boots 2014-05-11 20:37:22 REPEAT COUNT: 20 # /kernel-tests/linux8/obj-bisect/.repeat Bisecting: 109 revisions left to test after this (roughly 7 steps) [ba96bd4b4a7445154b9dfd9b990402efed483948] Merge 'arm-perf/aarch64' into devel-hourly-2014050720 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linux-devel:devel-hourly-2014050720:ba96bd4b4a7445154b9dfd9b990402efed483948:bisect-linux8 TEST FAILURE [ 2.369437] cryptomgr_probe (445) used greatest stack depth: 5728 bytes left [ 2.376403] Freeing unused kernel memory: 2684K (ffffffff816fc000 - ffffffff8199b000) [ 2.385903] random: init urandom read with 66 bits of entropy available [ 2.387812] BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1167 [ 2.387888] ------------[ cut here ]------------ /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f1-61:20140508181027:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f2-16:20140508181045:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f2-62:20140508181043:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-quantal-f4-10:20140508181036:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-quantal-f2-113:20140508181043:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f2-112:20140508181044:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-quantal-f2-26:20140508181044:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f4-124:20140508181027:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f2-58:20140508181040:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f1-66:20140508181026:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-quantal-f2-19:20140508181044:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f1-99:20140508181032:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f4-68:20140508181028:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f4-125:20140508181031:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-quantal-f4-92:20140508181033:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-quantal-f2-65:20140508181043:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f1-77:20140508181027:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f1-29:20140508181026:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-yocto-f1-96:20140508181032:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 /kernel/x86_64-randconfig-s1-05080402/ba96bd4b4a7445154b9dfd9b990402efed483948/dmesg-quantal-f2-86:20140508181045:x86_64-randconfig-s1-05080402:3.15.0-rc4-00858-gba96bd4:1 0:20:20 all_good:bad:all_bad boots 2014-05-11 20:37:23 REPEAT COUNT: 20 # /kernel-tests/linux8/obj-bisect/.repeat Bisecting: 6 revisions left to test after this (roughly 3 steps) [0d621996b9340f6043fc61bfde2a1c0694661f75] Merge 'luto/fast-return-to-userspace' into devel-hourly-2014050720 running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linux-devel:devel-hourly-2014050720:0d621996b9340f6043fc61bfde2a1c0694661f75:bisect-linux8 TEST FAILURE BUG: kernel early hang without any printk output Command line: 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-s1-05080402/linux-devel:devel-hourly-2014050720:0d621996b9340f6043fc61bfde2a1c0694661f75:bisect-linux7/.vmlinuz-0d621996b9340f6043fc61bfde2a1c0694661f75-20140508200328-20-f1 branch=linux-devel/devel-hourly-2014050720 BOOT_IMAGE=/kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/vmlinuz-3.15.0-rc4-00854-g0d62199 drbd.minor_count=8 Early hang kernel: vmlinuz-3.15.0-rc4-00854-g0d62199 3.15.0-rc4-00854-g0d62199 #1 Elapsed time: 35 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f2-43:20140508200359:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f4-102:20140508200316:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f4-11:20140508200318:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f4-82:20140508200316:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f4-92:20140508200317:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f4-14:20140508200316:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-yocto-f1-69:20140508200341:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f4-27:20140508200318:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f4-47:20140508200317:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-yocto-f4-21:20140508200314:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f2-74:20140508200358:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f2-121:20140508200356:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f2-49:20140508200359:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-quantal-f4-16:20140508200318:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 /kernel/x86_64-randconfig-s1-05080402/0d621996b9340f6043fc61bfde2a1c0694661f75/dmesg-yocto-f1-41:20140508200348:x86_64-randconfig-s1-05080402:3.15.0-rc4-00854-g0d62199:1 0:15:20 all_good:bad:all_bad boots 2014-05-11 20:37:23 REPEAT COUNT: 23 # /kernel-tests/linux8/obj-bisect/.repeat linear-bisect: bad branch may be luto/fast-return-to-userspace linear-bisect: handle over to git bisect linear-bisect: git bisect start 0d621996b9340f6043fc61bfde2a1c0694661f75 a2149d48144498ee00c03e7cfef13841dd459e65 -- Previous HEAD position was 0d62199... Merge 'luto/fast-return-to-userspace' into devel-hourly-2014050720 HEAD is now at 38583f0... Merge branch 'akpm' (incoming from Andrew) Bisecting: 0 revisions left to test after this (roughly 0 steps) [e94ab903e725eaf9d98e56f3043878bde7fc1b58] Fast interrupt return to userspace linear-bisect: git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux8/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /kernel-tests/linux8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linux-devel:devel-hourly-2014050720:e94ab903e725eaf9d98e56f3043878bde7fc1b58:bisect-linux8 TEST FAILURE [ 9.710736] Key type encrypted registered [ 9.887079] Freeing unused kernel memory: 2684K (ffffffff816f7000 - ffffffff81996000) [ 9.940495] random: init urandom read with 67 bits of entropy available [ 9.980095] BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1167 [ 9.982247] in_atomic(): 0, irqs_disabled(): 1, pid: 1, name: init [ 9.983463] 1 lock held by init/1: [ 9.984072] #0: (&mm->mmap_sem){++++++}, at: [] __do_page_fault+0xc9/0x4d0 [ 9.984072] irq event stamp: 1420552 [ 9.984072] hardirqs last enabled at (1420551): [] retint_swapgs+0x13/0x25 [ 9.969473] ------------[ cut here ]------------ /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f1-118:20140508201336:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-yocto-f1-125:20140508201327:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-yocto-f1-93:20140508201324:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f1-17:20140508201329:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-yocto-f1-95:20140508201324:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f1-70:20140508201355:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-yocto-f3-71:20140508201322:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f1-40:20140508201355:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f1-120:20140508201332:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f1-68:20140508201333:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f4-27:20140508201400:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f4-11:20140508201356:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f2-74:20140508201455:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f1-73:20140508201330:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f1-99:20140508201326:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f3-47:20140508201334:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f4-16:20140508201355:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-quantal-f1-79:20140508201331:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-yocto-f1-10:20140508201326:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 /kernel/x86_64-randconfig-s1-05080402/e94ab903e725eaf9d98e56f3043878bde7fc1b58/dmesg-yocto-f1-3:20140508201325:x86_64-randconfig-s1-05080402:3.15.0-rc4-00001-ge94ab90:1 0:20:20 all_good:bad:all_bad boots e94ab903e725eaf9d98e56f3043878bde7fc1b58 is the first bad commit commit e94ab903e725eaf9d98e56f3043878bde7fc1b58 Author: Andy Lutomirski Date: Tue May 6 13:26:33 2014 -0700 Fast interrupt return to userspace This could be even faster if it were written in assembler :) The only reason it's Signed-off-by is that I agree to the DCO. That should not be construed to mean that anyone should apply this patch. It's an abomination and it will do terrible, terrible things. It boots, though :) I haven't tested it beyond that. Signed-off-by: Andy Lutomirski :040000 040000 beb38f915234fc1810ba66083c61d8ecdbbb137c 65d42d2bf9c4fe3bdff5c9d9c280a2d010bfb055 M arch bisect run success Previous HEAD position was e94ab90... Fast interrupt return to userspace HEAD is now at 89ca3b8... Linux 3.15-rc4 ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linux-devel:devel-hourly-2014050720:89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd:bisect-linux8 2014-05-11-20:37:27 89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd reuse /kernel/x86_64-randconfig-s1-05080402/89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd/vmlinuz-3.15.0-rc4 2014-05-11-20:37:27 detecting boot state .. 19 45 69 SUCCESS Previous HEAD position was 89ca3b8... Linux 3.15-rc4 HEAD is now at 0dcebb8... 0day head guard for 'devel-hourly-2014050720' ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linux-devel:devel-hourly-2014050720:0dcebb805ee5cb03202711908c828a76c60dc51e:bisect-linux8 TEST FAILURE [ 2.639605] kworker/u96:1 (448) used greatest stack depth: 5480 bytes left [ 2.646359] Freeing unused kernel memory: 2684K (ffffffff816fe000 - ffffffff8199d000) [ 2.655807] random: init urandom read with 66 bits of entropy available [ 2.657951] BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1167 [ 2.658022] ------------[ cut here ]------------ /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f3-3:20140511175513:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f4-69:20140508152121:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f4-36:20140511175214:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f3-30:20140508152057:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f4-73:20140508152110:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f1-9:20140508152137:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f4-88:20140508152108:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f4-6:20140508152120:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f3-21:20140508152058:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f4-93:20140511175214:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f4-99:20140511175214:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f1-105:20140508040049:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f1-7:20140508040049:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f2-71:20140508040100:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f3-116:20140511175513:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f3-57:20140511175513:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f4-11:20140508152116:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-quantal-f3-58:20140511175513:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f4-11:20140511175214:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f4-74:20140508152117:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f4-91:20140511175214:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f4-26:20140511175214:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 /kernel/x86_64-randconfig-s1-05080402/0dcebb805ee5cb03202711908c828a76c60dc51e/dmesg-yocto-f4-111:20140508152117:x86_64-randconfig-s1-05080402:3.15.0-rc4-wl-01656-g0dcebb8:1 0:23:23 all_good:bad:all_bad boots HEAD is now at 0dcebb8 0day head guard for 'devel-hourly-2014050720' ========= upstream ========= Previous HEAD position was 0dcebb8... 0day head guard for 'devel-hourly-2014050720' HEAD is now at 7e338c9... Merge branch 'for-3.15' of git://linux-nfs.org/~bfields/linux ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/linus:master:7e338c9991ecee9c2ac7a4cee2c2e11ecb563d02:bisect-linux8 2014-05-11-20:40:00 7e338c9991ecee9c2ac7a4cee2c2e11ecb563d02 compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-s1-05080402-7e338c9991ecee9c2ac7a4cee2c2e11ecb563d02 Check for kernel in /kernel/x86_64-randconfig-s1-05080402/7e338c9991ecee9c2ac7a4cee2c2e11ecb563d02 waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-s1-05080402-7e338c9991ecee9c2ac7a4cee2c2e11ecb563d02 waiting for completion of /kbuild-tests/build-queue/.x86_64-randconfig-s1-05080402-7e338c9991ecee9c2ac7a4cee2c2e11ecb563d02 kernel: /kernel/x86_64-randconfig-s1-05080402/7e338c9991ecee9c2ac7a4cee2c2e11ecb563d02/vmlinuz-3.15.0-rc5-00009-g7e338c9 2014-05-11-21:06:00 detecting boot state . 44 69 SUCCESS ========= linux-next ========= Previous HEAD position was 7e338c9... Merge branch 'for-3.15' of git://linux-nfs.org/~bfields/linux HEAD is now at 9f072b9... Add linux-next specific files for 20140509 ls -a /kbuild-tests/run-queue/kvm/x86_64-randconfig-s1-05080402/next:master:9f072b9386bc35ca2ed534c0392f5036902ce41b:bisect-linux8 2014-05-11-21:07:31 9f072b9386bc35ca2ed534c0392f5036902ce41b compiling Queued build task to /kbuild-tests/build-queue/x86_64-randconfig-s1-05080402-9f072b9386bc35ca2ed534c0392f5036902ce41b Check for kernel in /kernel/x86_64-randconfig-s1-05080402/9f072b9386bc35ca2ed534c0392f5036902ce41b waiting for completion of /kbuild-tests/build-queue/x86_64-randconfig-s1-05080402-9f072b9386bc35ca2ed534c0392f5036902ce41b waiting for completion of /kbuild-tests/build-queue/.x86_64-randconfig-s1-05080402-9f072b9386bc35ca2ed534c0392f5036902ce41b kernel: /kernel/x86_64-randconfig-s1-05080402/9f072b9386bc35ca2ed534c0392f5036902ce41b/vmlinuz-3.15.0-rc4-next-20140509 2014-05-11-21:17:32 detecting boot state .. 5 7 13 50 53. 65.............................................................................................................................................................................................................................................................................................................2014-05-11 23:52:33 add_to_run_queue 4 .. 68 69 SUCCESS