Hi Alan,--
0day kernel testing robot got the below dmesg and the first bad commit is
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git staging-next
commit 9b17aeec232a5f0a61ce3952c2e728a0eeddda8b
Author: Alan <alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
AuthorDate: Mon May 12 16:55:35 2014 +0100
Commit: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
CommitDate: Thu May 15 13:19:01 2014 -0700
goldfish: Allow 64bit builds
We can now enable the 64bit option for the Goldfish 64bit emulator.
Signed-off-by: Alan Cox <alan@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
+----------------------------------------------------------+------------+------------+
| | b8658bc810 | 9b17aeec23 |
+----------------------------------------------------------+------------+------------+
| boot_successes | 60 | 0 |
| boot_failures | 0 | 20 |
| genirq:Flags_mismatch_irq.(serial)vs.(goldfish_pdev_bus) | 0 | 20 |
+----------------------------------------------------------+------------+------------+
[ 8.668148] ALSA device list:
[ 8.668419] #0: Loopback 1
[ 8.668677] #1: MTPAV on parallel port at 0x378
[ 8.669432] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.671901] Freeing unused kernel memory: 1196K (ffffffff82bf0000 - ffffffff82d1b000)
[ 8.672607] Write protecting the kernel read-only data: 18432k
[ 8.673681] Freeing unused kernel memory: 80K (ffff880001bec000 - ffff880001c00000)
[ 8.677081] Freeing unused kernel memory: 1076K (ffff8800020f3000 - ffff880002200000)
[ 8.678569] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.679593] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.680682] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.681640] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.682609] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.684017] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.685239] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.692514] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.693570] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.694499] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 8.765477] gfs2: path_lookup on rootfs returned error -2
[ 60.373367] spin_lock-torture: Writes: Total: 4 Max/Min: 0/0 Fail: 0 [ 69.215881] random: nonblocking pool is initialized
git bisect start 0856ad1ef175c45dc6a0bc629ca355fdfbb1001e v3.14 --
git bisect good 200bde278d78318cbd10cd865f94016924e76c56 # 16:16 20+ 0 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 9ae8df66e6742271b49a1518c7bf0debdfc523cf # 16:32 20+ 0 Merge remote-tracking branch 'devicetree-current/devicetree/merge'
git bisect good 77645accb67841c8557483afe029ec80a240d636 # 16:39 20+ 0 Merge remote-tracking branch 'drm/drm-next'
git bisect good 21dd17170d63646851debe993194e46811dbdb1b # 16:47 20+ 0 Merge remote-tracking branch 'ftrace/for-next'
git bisect good 2fa6c75b02c032252eaf3c0b8885ddb1b9ad4840 # 16:55 20+ 0 Merge remote-tracking branch 'usb-gadget/next'
git bisect bad 7dc48a5c223dddebc2bb263d6e77edb557c11f6f # 17:00 0- 7 Merge remote-tracking branch 'dma-mapping/dma-mapping-next'
git bisect bad a75b5bfa061c14e14261aed3771e2b174df72450 # 17:09 0- 8 Merge remote-tracking branch 'cgroup/for-next'
git bisect bad 47bb948ff65de22da21d235cc768bba7802ad45f # 17:15 0- 12 Merge remote-tracking branch 'staging/staging-next'
git bisect good d5cef008e95ffdaf457e38254e67d145a927df96 # 17:25 20+ 0 Merge tag 'iio-for-3.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
git bisect good a1f3b3fdba2ab124c1e8c2b6aa17cfcf5c99d756 # 17:34 20+ 0 staging: rtl8188eu: Remove 'u32 ref_cnt' from struct recv_buf
git bisect good be4c50604d22f0fd2c65853af18292f44d784b86 # 17:45 20+ 0 staging: rtl8723au: Eliminate RTW_STATUS_CODE23a()
git bisect bad 2b46be68a1b67f40df4f288b90e79181c387eda6 # 17:53 0- 8 staging: dgnc: cleanup dgnc_finalize_board_init()
git bisect good c7fff4e43ced0584bcbcef8a5f93bd9a813aac1b # 18:01 20+ 0 staging: rtl8723au: struct phy_info and struct odm_phy_info are identical
git bisect bad f6279717bbb20bf90ec414af17d2a31d843f5eb5 # 18:12 0- 10 goldfish: clean up staging ifdefs
git bisect good 0cc6c3ab3cdbcf8a4a103d27599a6d0b44a6c315 # 18:18 20+ 0 staging: rtl8723au: Remove unused pointer in rtw_wdev_free()
git bisect good f10d8434201859d5ad7f51032dcd2d0c09e85ee2 # 18:25 20+ 0 goldfish: add support for 64bit to the virtual bus
git bisect good b8658bc81089d656fe54b12e21f0cae5116b6483 # 18:33 20+ 0 goldfish: enable 64-bit tty driver
git bisect bad 9b17aeec232a5f0a61ce3952c2e728a0eeddda8b # 18:39 0- 9 goldfish: Allow 64bit builds
# first bad commit: [9b17aeec232a5f0a61ce3952c2e728a0eeddda8b] goldfish: Allow 64bit builds
git bisect good b8658bc81089d656fe54b12e21f0cae5116b6483 # 18:41 60+ 0 goldfish: enable 64-bit tty driver
git bisect bad 4151fa6adc65da14673ece623bbb2acc6936f8be # 18:41 0- 13 Add linux-next specific files for 20140516
git bisect good 14186fea0cb06bc43181ce239efe0df6f1af260a # 18:48 60+ 0 Merge tag 'locks-v3.15-4' of git://git.samba.org/jlayton/linux
git bisect bad 4151fa6adc65da14673ece623bbb2acc6936f8be # 18:48 0- 13 Add linux-next specific files for 20140516
This script may reproduce the error.
-----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=yocto-minimal-x86_64.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/blob/master/initrd/$initrd
kvm=(
qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel $kernel
-initrd $initrd
-smp 2
-m 256M
-net nic,vlan=0,macaddr=00:00:00:00:00:00,model=virtio
-net user,vlan=0
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-serial stdio
-display none
-monitor null
)
append=(
debug
sched_debug
apic=debug
ignore_loglevel
sysrq_always_enabled
panic=10
prompt_ramdisk=0
earlyprintk=ttyS0,115200
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
)
"${kvm[@]}" --append "${append[*]}"
-----------------------------------------------------------------------------
Thanks,
Jet