git checkout 5e01dc7b26d9f24f39abace5da98ccbd6a5ceb52 Previous HEAD position was 44a40fd... Merge 'vfs/for-next' into devel-xian-x86_64-201311070514 HEAD is now at 5e01dc7... Linux 3.12 ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:5e01dc7b26d9f24f39abace5da98ccbd6a5ceb52:bisect-net SUCCESS bisect: good commit 5e01dc7b26d9f24f39abace5da98ccbd6a5ceb52 git bisect start 44a40fd21fcf04ed24396657e381da1b7412590f 5e01dc7b26d9f24f39abace5da98ccbd6a5ceb52 -- Previous HEAD position was 5e01dc7... Linux 3.12 Switched to branch 'master' Your branch is behind 'origin/master' by 41213 commits, and can be fast-forwarded. (use "git pull" to update your local branch) Bisecting: 436 revisions left to test after this (roughly 9 steps) [6a05cedf89640bae8e10aa6ee726a4986c484750] Merge 'oleg/uprobes/core' into devel-xian-x86_64-201311070514 git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:6a05cedf89640bae8e10aa6ee726a4986c484750:bisect-net 2013-11-07-08:19:40 6a05cedf89640bae8e10aa6ee726a4986c484750 compiling 448 real 1792 user 165 sys 436.74% cpu x86_64-randconfig-x0-1106 2013-11-07-08:27:56 detecting boot state 3.12.0-00338-g6a05ced...... 1.. 3. 4.. 5 6...... 7....... 9........... 10...... 12 13 15..... 16..... 17... 18.. 19.. 20 SUCCESS Bisecting: 218 revisions left to test after this (roughly 8 steps) [4796e8af60ee7d2922386ef9fd4389d21e2c1665] Bluetooth: Make mgmt_write_scan_failed() return void running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:4796e8af60ee7d2922386ef9fd4389d21e2c1665:bisect-net 2013-11-07-09:04:59 4796e8af60ee7d2922386ef9fd4389d21e2c1665 compiling 243 real 1821 user 164 sys 816.12% cpu x86_64-randconfig-x0-1106 2013-11-07-09:09:15 detecting boot state 3.11.0-07982-g4796e8a.......... 1................. 2. 3... 4.................. 5 6 7............ 9 11 12.... 13.... 15 17. 18. 19...... 20 SUCCESS Bisecting: 109 revisions left to test after this (roughly 7 steps) [cca34b785a21d220176038c45071ffe842e99fd3] Bluetooth: Remove link type check in hci_disconn_complete_evt() running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:cca34b785a21d220176038c45071ffe842e99fd3:bisect-net 2013-11-07-09:55:47 cca34b785a21d220176038c45071ffe842e99fd3 compiling 33 real 57 user 12 sys 212.02% cpu x86_64-randconfig-x0-1106 2013-11-07-09:56:30 detecting boot state 3.11.0-08091-gcca34b7.... 1 2 3.. 4. 5 6....... 7 8.......... 9... 10.. 12.... 13... 14. 15. 16. 17. 18........ 19........ 20 SUCCESS Bisecting: 54 revisions left to test after this (roughly 6 steps) [004e8957280a32f7b54766531c064412bda45e48] convert the rest of binfmt_elf_fdpic to dump_emit() running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:004e8957280a32f7b54766531c064412bda45e48:bisect-net 2013-11-07-10:34:02 004e8957280a32f7b54766531c064412bda45e48 compiling 247 real 1853 user 170 sys 816.78% cpu x86_64-randconfig-x0-1106 2013-11-07-10:38:25 detecting boot state 3.12.0-rc4-00055-g004e895..... 1 2....... 3. 4.... 5.... 6 7.. 9 10. 12 15.. 16 18. 19. 20 SUCCESS Bisecting: 27 revisions left to test after this (roughly 5 steps) [b0d94facd7c81fae48e72f1e0b2a7e656ecde921] exportfs: stop retrying once we race with rename/remove running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:b0d94facd7c81fae48e72f1e0b2a7e656ecde921:bisect-net 2013-11-07-10:59:56 b0d94facd7c81fae48e72f1e0b2a7e656ecde921 compiling 220 real 1816 user 162 sys 897.58% cpu x86_64-randconfig-x0-1106 2013-11-07-11:03:46 detecting boot state 3.12.0-rc4-00082-gb0d94fa. TEST FAILURE [ 0.006666] Calibrating delay loop (skipped) preset value.. 5335.77 BogoMIPS (lpj=8889240) [ 0.006666] pid_max: default: 32768 minimum: 301 [ 0.007075] Mount-cache hash table entries: 256 [ 0.008338] BUG: spinlock trylock failure on UP on CPU#0, swapper/0 [ 0.010022] lock: 0xffff88000ec01c78, .magic: dead4ead, .owner: swapper/0, .owner_cpu: 0 [ 0.011511] CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0-rc4-00082-gb0d94fa #561 [ 0.012874] ffffffff81095ffb ffffffff82201d28 ffffffff81be4077 ffffffff82201d48 [ 0.014263] ffffffff81be48a6 0000000000000000 ffff88000ec01c78 ffffffff82201d68 [ 0.015699] ffffffff81be48d1 ffff88000ec01c78 ffffffff82029453 ffffffff82201d80 [ 0.017601] Call Trace: [ 0.018137] [] ? up+0xf/0x39 [ 0.019005] [] dump_stack+0x19/0x1b [ 0.020016] [] spin_dump+0x85/0x8a [ 0.020940] [] spin_bug+0x26/0x28 [ 0.021876] [] do_raw_spin_trylock+0x37/0x3c [ 0.022961] [] _raw_spin_lock+0x45/0x70 [ 0.023362] [] ? d_flags_for_inode+0x48/0xa9 [ 0.024438] [] d_flags_for_inode+0x48/0xa9 [ 0.025483] [] __d_instantiate+0x1d/0xdf [ 0.026681] [] d_instantiate+0x35/0x4b [ 0.027666] [] d_make_root+0x32/0x49 [ 0.028644] [] sysfs_mount+0x162/0x1db [ 0.030015] [] mount_fs+0x10/0xac [ 0.030924] [] vfs_kern_mount+0x5f/0xf3 [ 0.031917] [] kern_mount_data+0x14/0x29 [ 0.032967] [] sysfs_init+0x54/0xb3 [ 0.033348] [] mnt_init+0xcb/0x1c7 [ 0.034276] [] vfs_caches_init+0x90/0x107 [ 0.035308] [] ? kmem_cache_create+0x23/0x25 [ 0.036684] [] start_kernel+0x431/0x482 [ 0.037690] [] ? repair_env_string+0x58/0x58 [ 0.038760] [] ? early_idt_handlers+0x120/0x120 [ 0.040015] [] x86_64_start_reservations+0x2a/0x2c [ 0.041179] [] x86_64_start_kernel+0xdc/0xe9 Elapsed time: 10 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/x86_64-randconfig-x0-1106/b0d94facd7c81fae48e72f1e0b2a7e656ecde921/vmlinuz-3.12.0-rc4-00082-gb0d94fa -append 'hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:b0d94facd7c81fae48e72f1e0b2a7e656ecde921:bisect-net/.vmlinuz-b0d94facd7c81fae48e72f1e0b2a7e656ecde921-20131107110344-2-bens branch=linux-devel/devel-xian-x86_64-201311070514 BOOT_IMAGE=/kernel/x86_64-randconfig-x0-1106/b0d94facd7c81fae48e72f1e0b2a7e656ecde921/vmlinuz-3.12.0-rc4-00082-gb0d94fa' -initrd /kernel-tests/initrd/yocto-minimal-x86_64.cgz -m 256M -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -watchdog i6300esb -drive file=/fs/sda7/disk0-yocto-bens-2,media=disk,if=virtio -drive file=/fs/sda7/disk1-yocto-bens-2,media=disk,if=virtio -drive file=/fs/sda7/disk2-yocto-bens-2,media=disk,if=virtio -drive file=/fs/sda7/disk3-yocto-bens-2,media=disk,if=virtio -drive file=/fs/sda7/disk4-yocto-bens-2,media=disk,if=virtio -drive file=/fs/sda7/disk5-yocto-bens-2,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-yocto-bens-2 -serial file:/dev/shm/kboot/serial-yocto-bens-2 -daemonize -display none -monitor null /kernel/x86_64-randconfig-x0-1106/b0d94facd7c81fae48e72f1e0b2a7e656ecde921/dmesg-yocto-bens-2:20131107110404:x86_64-randconfig-x0-1106:3.12.0-rc4-00082-gb0d94fa:561 0:1:1 all_good:bad:all_bad boots REPEAT COUNT: 20 # /cc/wfg/net-bisect/.repeat Bisecting: 13 revisions left to test after this (roughly 4 steps) [50235cd9727c20b09967b5c060025eac9d0c80bb] elf{,_fdpic} coredump: get rid of pointless if (siginfo->si_signo) running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:50235cd9727c20b09967b5c060025eac9d0c80bb:bisect-net 2013-11-07-11:04:17 50235cd9727c20b09967b5c060025eac9d0c80bb compiling 184 real 1522 user 136 sys 900.27% cpu x86_64-randconfig-x0-1106 2013-11-07-11:07:30 detecting boot state 3.12.0-rc4-00068-g50235cd.......... 1.... 2 3. 4 5.. 7... 8. 9. 11.. 13 14 15.... 18 20 SUCCESS Bisecting: 6 revisions left to test after this (roughly 3 steps) [08196969532eee10cdeaa29fca37fa7a407b01ae] dcache: use IS_ROOT to decide where dentry is hashed running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:08196969532eee10cdeaa29fca37fa7a407b01ae:bisect-net 2013-11-07-11:28:31 08196969532eee10cdeaa29fca37fa7a407b01ae compiling 183 real 1540 user 136 sys 914.38% cpu x86_64-randconfig-x0-1106 2013-11-07-11:31:42 detecting boot state 3.12.0-rc4-00075-g0819696.... TEST FAILURE [ 0.009999] Calibrating delay loop (skipped) preset value.. 3201.44 BogoMIPS (lpj=5333516) [ 0.011344] pid_max: default: 32768 minimum: 301 [ 0.013562] Mount-cache hash table entries: 256 [ 0.016969] BUG: spinlock trylock failure on UP on CPU#0, swapper/0 [ 0.020023] lock: 0xffff88000ec01c78, .magic: dead4ead, .owner: swapper/0, .owner_cpu: 0 [ 0.023356] CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0-rc4-00075-g0819696 #563 [ 0.026685] ffffffff81095ffb ffffffff82201d28 ffffffff81be3ff7 ffffffff82201d48 [ 0.030872] ffffffff81be4826 0000000000000000 ffff88000ec01c78 ffffffff82201d68 [ 0.034961] ffffffff81be4851 ffff88000ec01c78 ffffffff82029468 ffffffff82201d80 [ 0.039013] Call Trace: [ 0.040029] [] ? up+0xf/0x39 [ 0.042077] [] dump_stack+0x19/0x1b [ 0.043360] [] spin_dump+0x85/0x8a [ 0.046691] [] spin_bug+0x26/0x28 [ 0.049027] [] do_raw_spin_trylock+0x37/0x3c [ 0.050028] [] _raw_spin_lock+0x45/0x70 [ 0.053361] [] ? d_flags_for_inode+0x48/0xa9 [ 0.056690] [] d_flags_for_inode+0x48/0xa9 [ 0.060023] [] __d_instantiate+0x1d/0xdf [ 0.062257] [] d_instantiate+0x35/0x4b [ 0.063358] [] d_make_root+0x32/0x49 [ 0.066693] [] sysfs_mount+0x162/0x1db [ 0.070026] [] mount_fs+0x10/0xac [ 0.072185] [] vfs_kern_mount+0x5f/0xf3 [ 0.073359] [] kern_mount_data+0x14/0x29 [ 0.076692] [] sysfs_init+0x54/0xb3 [ 0.080025] [] mnt_init+0xcb/0x1c7 [ 0.082408] [] vfs_caches_init+0x90/0x107 [ 0.083358] [] ? kmem_cache_create+0x23/0x25 [ 0.086713] [] start_kernel+0x431/0x482 [ 0.090022] [] ? repair_env_string+0x58/0x58 [ 0.093359] [] ? early_idt_handlers+0x120/0x120 [ 0.096693] [] x86_64_start_reservations+0x2a/0x2c [ 0.099688] [] x86_64_start_kernel+0xdc/0xe9 Elapsed time: 10 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/x86_64-randconfig-x0-1106/08196969532eee10cdeaa29fca37fa7a407b01ae/vmlinuz-3.12.0-rc4-00075-g0819696 -append 'hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:08196969532eee10cdeaa29fca37fa7a407b01ae:bisect-net/.vmlinuz-08196969532eee10cdeaa29fca37fa7a407b01ae-20131107113140-7-jaketown branch=linux-devel/devel-xian-x86_64-201311070514 BOOT_IMAGE=/kernel/x86_64-randconfig-x0-1106/08196969532eee10cdeaa29fca37fa7a407b01ae/vmlinuz-3.12.0-rc4-00075-g0819696' -initrd /kernel-tests/initrd/yocto-minimal-x86_64.cgz -m 256M -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -watchdog i6300esb -pidfile /dev/shm/kboot/pid-yocto-jaketown-5 -serial file:/dev/shm/kboot/serial-yocto-jaketown-5 -daemonize -display none -monitor null /kernel/x86_64-randconfig-x0-1106/08196969532eee10cdeaa29fca37fa7a407b01ae/dmesg-yocto-jaketown-5:20131107113324:x86_64-randconfig-x0-1106:3.12.0-rc4-00075-g0819696:563 0:1:1 all_good:bad:all_bad boots REPEAT COUNT: 20 # /cc/wfg/net-bisect/.repeat Bisecting: 3 revisions left to test after this (roughly 2 steps) [7717bf21e4a5e1d371e313a4404635f4775961d9] vfs: split out vfs_getattr_nosec running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:7717bf21e4a5e1d371e313a4404635f4775961d9:bisect-net 2013-11-07-11:33:44 7717bf21e4a5e1d371e313a4404635f4775961d9 compiling 25 real 45 user 13 sys 233.12% cpu x86_64-randconfig-x0-1106 2013-11-07-11:34:19 detecting boot state 3.12.0-rc4-00071-g7717bf2..... 1.. TEST FAILURE [ 0.006666] Calibrating delay loop (skipped) preset value.. 5322.87 BogoMIPS (lpj=8867006) [ 0.006666] pid_max: default: 32768 minimum: 301 [ 0.007011] Mount-cache hash table entries: 256 [ 0.008127] BUG: spinlock trylock failure on UP on CPU#0, swapper/0 [ 0.010008] lock: 0xffff88000d801c78, .magic: dead4ead, .owner: swapper/0, .owner_cpu: 0 [ 0.013343] CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0-rc4-00071-g7717bf2 #564 [ 0.014572] ffffffff81095ffb ffffffff82201d28 ffffffff81be3fd7 ffffffff82201d48 [ 0.015860] ffffffff81be4806 0000000000000000 ffff88000d801c78 ffffffff82201d68 [ 0.017256] ffffffff81be4831 ffff88000d801c78 ffffffff82029477 ffffffff82201d80 [ 0.018556] Call Trace: [ 0.018970] [] ? up+0xf/0x39 [ 0.019724] [] dump_stack+0x19/0x1b [ 0.020007] [] spin_dump+0x85/0x8a [ 0.020847] [] spin_bug+0x26/0x28 [ 0.021672] [] do_raw_spin_trylock+0x37/0x3c [ 0.023350] [] _raw_spin_lock+0x45/0x70 [ 0.024269] [] ? d_flags_for_inode+0x48/0xa9 [ 0.026674] [] d_flags_for_inode+0x48/0xa9 [ 0.028619] [] __d_instantiate+0x1d/0xdf [ 0.029541] [] d_instantiate+0x35/0x4b [ 0.030009] [] d_make_root+0x32/0x49 [ 0.030945] [] sysfs_mount+0x162/0x1db [ 0.031834] [] mount_fs+0x10/0xac [ 0.033341] [] vfs_kern_mount+0x5f/0xf3 [ 0.036684] [] kern_mount_data+0x14/0x29 [ 0.037600] [] sysfs_init+0x54/0xb3 [ 0.038447] [] mnt_init+0xcb/0x1c7 [ 0.039281] [] vfs_caches_init+0x90/0x107 [ 0.040008] [] ? kmem_cache_create+0x23/0x25 [ 0.040995] [] start_kernel+0x431/0x482 [ 0.041896] [] ? repair_env_string+0x58/0x58 [ 0.043340] [] ? early_idt_handlers+0x120/0x120 [ 0.044352] [] x86_64_start_reservations+0x2a/0x2c [ 0.045436] [] x86_64_start_kernel+0xdc/0xe9 Elapsed time: 10 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/x86_64-randconfig-x0-1106/7717bf21e4a5e1d371e313a4404635f4775961d9/vmlinuz-3.12.0-rc4-00071-g7717bf2 -append 'hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:7717bf21e4a5e1d371e313a4404635f4775961d9:bisect-net/.vmlinuz-7717bf21e4a5e1d371e313a4404635f4775961d9-20131107113417-4-lkp-st01 branch=linux-devel/devel-xian-x86_64-201311070514 BOOT_IMAGE=/kernel/x86_64-randconfig-x0-1106/7717bf21e4a5e1d371e313a4404635f4775961d9/vmlinuz-3.12.0-rc4-00071-g7717bf2' -initrd /kernel-tests/initrd/quantal-core-x86_64.cgz -m 256M -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -watchdog i6300esb -drive file=/fs/LABEL=KVM/disk0-quantal-lkp-st01-8,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk1-quantal-lkp-st01-8,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk2-quantal-lkp-st01-8,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk3-quantal-lkp-st01-8,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk4-quantal-lkp-st01-8,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk5-quantal-lkp-st01-8,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-quantal-lkp-st01-8 -serial file:/dev/shm/kboot/serial-quantal-lkp-st01-8 -daemonize -display none -monitor null /kernel/x86_64-randconfig-x0-1106/7717bf21e4a5e1d371e313a4404635f4775961d9/dmesg-quantal-lkp-st01-8:20131107193443:x86_64-randconfig-x0-1106:3.12.0-rc4-00071-g7717bf2:564 0:1:2 all_good:bad:all_bad boots REPEAT COUNT: 30 # /cc/wfg/net-bisect/.repeat Bisecting: 0 revisions left to test after this (roughly 1 step) [520ef078eabdbe7eb6a33c1f56a65ac55d41e6ed] iget/iget5: don't bother with ->i_lock until we find a match running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:520ef078eabdbe7eb6a33c1f56a65ac55d41e6ed:bisect-net 2013-11-07-11:38:22 520ef078eabdbe7eb6a33c1f56a65ac55d41e6ed compiling 190 real 1540 user 146 sys 884.74% cpu x86_64-randconfig-x0-1106 2013-11-07-11:43:00 detecting boot state 3.12.0-rc4-00070-g520ef07...... TEST FAILURE [ 0.006666] Calibrating delay loop (skipped) preset value.. 5788.10 BogoMIPS (lpj=9643360) [ 0.007219] pid_max: default: 32768 minimum: 301 [ 0.008160] Mount-cache hash table entries: 256 [ 0.009149] BUG: spinlock trylock failure on UP on CPU#0, swapper/0 [ 0.010011] lock: 0xffff88000ec01c78, .magic: dead4ead, .owner: swapper/0, .owner_cpu: 0 [ 0.011466] CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0-rc4-00070-g520ef07 #565 [ 0.013342] ffffffff81095ffb ffffffff82201d28 ffffffff81be3fc7 ffffffff82201d48 [ 0.014805] ffffffff81be47f6 0000000000000000 ffff88000ec01c78 ffffffff82201d68 [ 0.016276] ffffffff81be4821 ffff88000ec01c78 ffffffff8202944f ffffffff82201d80 [ 0.017586] Call Trace: [ 0.018054] [] ? up+0xf/0x39 [ 0.018877] [] dump_stack+0x19/0x1b [ 0.020013] [] spin_dump+0x85/0x8a [ 0.020929] [] spin_bug+0x26/0x28 [ 0.021829] [] do_raw_spin_trylock+0x37/0x3c [ 0.023348] [] _raw_spin_lock+0x45/0x70 [ 0.024291] [] ? d_flags_for_inode+0x48/0xa9 [ 0.025357] [] d_flags_for_inode+0x48/0xa9 [ 0.026398] [] __d_instantiate+0x1d/0xdf [ 0.026681] [] d_instantiate+0x35/0x4b [ 0.027677] [] d_make_root+0x32/0x49 [ 0.028611] [] sysfs_mount+0x162/0x1db [ 0.030013] [] mount_fs+0x10/0xac [ 0.030909] [] vfs_kern_mount+0x5f/0xf3 [ 0.031893] [] kern_mount_data+0x14/0x29 [ 0.033348] [] sysfs_init+0x54/0xb3 [ 0.034287] [] mnt_init+0xcb/0x1c7 [ 0.035191] [] vfs_caches_init+0x90/0x107 [ 0.036203] [] ? kmem_cache_create+0x23/0x25 [ 0.036683] [] start_kernel+0x431/0x482 [ 0.037686] [] ? repair_env_string+0x58/0x58 [ 0.038750] [] ? early_idt_handlers+0x120/0x120 [ 0.040012] [] x86_64_start_reservations+0x2a/0x2c [ 0.041197] [] x86_64_start_kernel+0xdc/0xe9 Elapsed time: 5 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/x86_64-randconfig-x0-1106/520ef078eabdbe7eb6a33c1f56a65ac55d41e6ed/vmlinuz-3.12.0-rc4-00070-g520ef07 -append 'hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:520ef078eabdbe7eb6a33c1f56a65ac55d41e6ed:bisect-net/.vmlinuz-520ef078eabdbe7eb6a33c1f56a65ac55d41e6ed-20131107114258-9-cairo branch=linux-devel/devel-xian-x86_64-201311070514 BOOT_IMAGE=/kernel/x86_64-randconfig-x0-1106/520ef078eabdbe7eb6a33c1f56a65ac55d41e6ed/vmlinuz-3.12.0-rc4-00070-g520ef07' -initrd /kernel-tests/initrd/yocto-minimal-x86_64.cgz -m 256M -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -watchdog i6300esb -drive file=/fs/LABEL=KVM/disk0-yocto-cairo-20,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk1-yocto-cairo-20,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk2-yocto-cairo-20,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk3-yocto-cairo-20,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk4-yocto-cairo-20,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk5-yocto-cairo-20,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-yocto-cairo-20 -serial file:/dev/shm/kboot/serial-yocto-cairo-20 -daemonize -display none -monitor null /kernel/x86_64-randconfig-x0-1106/520ef078eabdbe7eb6a33c1f56a65ac55d41e6ed/dmesg-yocto-cairo-20:20131107114541:x86_64-randconfig-x0-1106:3.12.0-rc4-00070-g520ef07:565 0:1:1 all_good:bad:all_bad boots Bisecting: 0 revisions left to test after this (roughly 0 steps) [1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae] VFS: Put a small type field into struct dentry::d_flags running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/net/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae:bisect-net 2013-11-07-11:46:02 1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae compiling 26 real 48 user 12 sys 234.46% cpu x86_64-randconfig-x0-1106 2013-11-07-11:47:46 detecting boot state 3.12.0-rc4-00069-g1247c74... TEST FAILURE [ 0.006666] Calibrating delay loop (skipped) preset value.. 4602.06 BogoMIPS (lpj=7667306) [ 0.006676] pid_max: default: 32768 minimum: 301 [ 0.007833] Mount-cache hash table entries: 256 [ 0.009015] BUG: spinlock trylock failure on UP on CPU#0, swapper/0 [ 0.010011] lock: 0xffff88000ec01c78, .magic: dead4ead, .owner: swapper/0, .owner_cpu: 0 [ 0.011861] CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0-rc4-00069-g1247c74 #566 [ 0.013342] ffffffff81095ffb ffffffff82201d28 ffffffff81be3fd7 ffffffff82201d48 [ 0.015126] ffffffff81be4806 0000000000000000 ffff88000ec01c78 ffffffff82201d68 [ 0.017822] ffffffff81be4831 ffff88000ec01c78 ffffffff8202944f ffffffff82201d80 [ 0.020082] Call Trace: [ 0.020635] [] ? up+0xf/0x39 [ 0.021681] [] dump_stack+0x19/0x1b [ 0.022879] [] spin_dump+0x85/0x8a [ 0.023344] [] spin_bug+0x26/0x28 [ 0.024483] [] do_raw_spin_trylock+0x37/0x3c [ 0.025820] [] _raw_spin_lock+0x45/0x70 [ 0.026680] [] ? d_flags_for_inode+0x48/0xa9 [ 0.028026] [] d_flags_for_inode+0x48/0xa9 [ 0.030011] [] __d_instantiate+0x1d/0xdf [ 0.031274] [] d_instantiate+0x35/0x4b [ 0.032515] [] d_make_root+0x32/0x49 [ 0.033347] [] sysfs_mount+0x162/0x1db [ 0.034555] [] mount_fs+0x10/0xac [ 0.035691] [] vfs_kern_mount+0x5f/0xf3 [ 0.036678] [] kern_mount_data+0x14/0x29 [ 0.037952] [] sysfs_init+0x54/0xb3 [ 0.040011] [] mnt_init+0xcb/0x1c7 [ 0.041157] [] vfs_caches_init+0x90/0x107 [ 0.042436] [] ? kmem_cache_create+0x23/0x25 [ 0.043346] [] start_kernel+0x431/0x482 [ 0.044591] [] ? repair_env_string+0x58/0x58 [ 0.046679] [] ? early_idt_handlers+0x120/0x120 [ 0.048080] [] x86_64_start_reservations+0x2a/0x2c [ 0.049518] [] x86_64_start_kernel+0xdc/0xe9 Elapsed time: 5 qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /kernel/x86_64-randconfig-x0-1106/1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae/vmlinuz-3.12.0-rc4-00069-g1247c74 -append 'hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae:bisect-net/.vmlinuz-1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae-20131107114745-7-snb branch=linux-devel/devel-xian-x86_64-201311070514 BOOT_IMAGE=/kernel/x86_64-randconfig-x0-1106/1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae/vmlinuz-3.12.0-rc4-00069-g1247c74' -initrd /kernel-tests/initrd/yocto-minimal-x86_64.cgz -m 256M -smp 2 -net nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -watchdog i6300esb -drive file=/fs/LABEL=KVM/disk0-yocto-snb-21,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk1-yocto-snb-21,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk2-yocto-snb-21,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk3-yocto-snb-21,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk4-yocto-snb-21,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk5-yocto-snb-21,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-yocto-snb-21 -serial file:/dev/shm/kboot/serial-yocto-snb-21 -daemonize -display none -monitor null /kernel/x86_64-randconfig-x0-1106/1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae/dmesg-yocto-snb-21:20131107114854:x86_64-randconfig-x0-1106:3.12.0-rc4-00069-g1247c74:566 0:1:1 all_good:bad:all_bad boots 1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae is the first bad commit commit 1247c74b4f3f3725a8bd8dc0bbd22baa2a9049ae Author: David Howells Date: Thu Sep 12 19:22:53 2013 +0100 VFS: Put a small type field into struct dentry::d_flags Put a type field into struct dentry::d_flags to indicate if the dentry is one of the following types that relate particularly to pathwalk: Miss (negative dentry) Directory "Automount" directory (defective - no i_op->lookup()) Symlink Other (regular, socket, fifo, device) The type field is set to one of the first five types on a dentry by calls to __d_instantiate() and d_obtain_alias() from information in the inode (if one is given). The type is cleared by dentry_unlink_inode() when it reconstitutes an existing dentry as a negative dentry. Accessors provided are: d_set_type(dentry, type) d_is_directory(dentry) d_is_autodir(dentry) d_is_symlink(dentry) d_is_file(dentry) d_is_negative(dentry) d_is_positive(dentry) A bunch of checks in pathname resolution switched to those. Signed-off-by: David Howells Signed-off-by: Al Viro :040000 040000 009f02e815b9b58c189384650314ac078d257b9f fb13ed7ea2db6cfdb58b82381e1833f8eac02e9e M fs :040000 040000 2e10eb1ad39f69b8dd39624bb000019733e4da20 ec0e532314d61fcf59ed7fa697f4764ac77863b9 M include bisect run success ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:50235cd9727c20b09967b5c060025eac9d0c80bb:bisect-net 2013-11-07-11:49:18 50235cd9727c20b09967b5c060025eac9d0c80bb reuse /kernel/x86_64-randconfig-x0-1106/50235cd9727c20b09967b5c060025eac9d0c80bb/vmlinuz-3.12.0-rc4-00068-g50235cd 2013-11-07-11:49:18 detecting boot state ... 1 3 4 6 7 8. 10. 11 13 14... 17. 19 20. 21 24. 25 26 27 30. 33 38. 40 47 48 51 56 58 59 62. 63. 65 70.. 71 72 74 75 76.. 79. 80 82 83. 89 90 SUCCESS ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:44a40fd21fcf04ed24396657e381da1b7412590f:bisect-net TEST FAILURE BUG: kernel early hang without any printk output Command line: hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:44a40fd21fcf04ed24396657e381da1b7412590f:bisect-net/.vmlinuz-44a40fd21fcf04ed24396657e381da1b7412590f-20131107081638-9-ant branch=linux-devel/devel-xian-x86_64-201311070514 BOOT_IMAGE=/kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/vmlinuz-3.12.0-00775-g44a40fd noapic nolapic nohz=off Early hang kernel: vmlinuz-3.12.0-00775-g44a40fd 3.12.0-00775-g44a40fd #9 Elapsed time: 35 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-waimea-7:20131107161816:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-inn-1:20131107060149:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-stoakley-6:20131107060203:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-xps-5:20131107141230:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-yocto-cairo-31:20131107082338:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-yocto-athens-19:20131107081756:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-yocto-athens-26:20131107054047:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-xps-5:20131107140810:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-yocto-lkp-tt02-7:20131106204529:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-lkp-tt02-20:20131106203649:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-inn-46:20131107085642:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-yocto-lkp-tt02-11:20131106234722:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-waimea-8:20131107135852:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-roam-36:20131107082303:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-yocto-xian-4:20131107084107:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-yocto-stoakley-4:20131107083256:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-quantal-stoakley-5:20131107081947:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 /kernel/x86_64-randconfig-x0-1106/44a40fd21fcf04ed24396657e381da1b7412590f/dmesg-yocto-snb-20:20131107062125:x86_64-randconfig-x0-1106:3.12.0-00775-g44a40fd:9 0:18:19 all_good:bad:all_bad boots [detached HEAD 840dc99] Revert "VFS: Put a small type field into struct dentry::d_flags" 3 files changed, 82 insertions(+), 164 deletions(-) ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:840dc9962cdca607c3b121fe8784866ecf169b64:bisect-net 2013-11-07-12:21:25 840dc9962cdca607c3b121fe8784866ecf169b64 compiling 2013-11-07-12:25:47 detecting boot state 3.12.0-00776-g840dc99. 1. 3 7 8 11 12 13. 15 17. 18 19. 20 21 23 24.. 26. 27 29 32 34 35 38 39 40. 41.... 45 47. 51 55... 59... 64 65 66 69 71 74 75 76 77 78 80 82.. 85 88 90 SUCCESS ========= upstream ========= Fetching linus ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:be408cd3e1fef73e9408b196a79b9934697fe3b1:bisect-net 2013-11-07-12:59:22 be408cd3e1fef73e9408b196a79b9934697fe3b1 compiling 2013-11-07-13:03:43 detecting boot state 3.12.0-00048-gbe408cd... 3 6 8 13 14 19 24. 27. 30 34 43... 50 60 65 71 76 79 82 89 90 SUCCESS ========= linux-next ========= Fetching next ls -a /kernel-tests/run-queue/kvm/x86_64-randconfig-x0-1106/linux-devel:devel-xian-x86_64-201311070514:7e82ea422c42db6b9c0188faeb98d6ec9ccfef8f:bisect-net 2013-11-07-13:18:21 7e82ea422c42db6b9c0188faeb98d6ec9ccfef8f compiling 2013-11-07-13:24:18 detecting boot state 3.12.0-next-20131106-10175-g7e82ea4. 6 13 25 45 69 80 84 87 90 SUCCESS