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Message-ID: <20160714025320.GB16221@yexl-desktop>
Date: Thu, 14 Jul 2016 10:53:20 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: Ingo Molnar <mingo@...nel.org>,
Anna-Maria Gleixner <anna-maria@...utronix.de>,
Andy Lutomirski <luto@...nel.org>,
Borislav Petkov <bp@...e.de>,
Denys Vlasenko <dvlasenk@...hat.com>,
Jan Beulich <JBeulich@...e.com>,
Jiang Liu <jiang.liu@...ux.intel.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Peter Zijlstra <peterz@...radead.org>,
Thomas Gleixner <tglx@...utronix.de>,
Viresh Kumar <viresh.kumar@...aro.org>,
LKML <linux-kernel@...r.kernel.org>,
"H. Peter Anvin" <hpa@...or.com>, tipbuild@...or.com, lkp@...org
Subject: [lkp] [x86/hpet] a28b41ab00: RIP: 0010:[<ffffffff84884ef2>]
[<ffffffff84884ef2>] __lock_acquire+0xce/0x649
FYI, we noticed the following commit:
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tmp.smp/hotplug
commit a28b41ab00dc93b9b16deda9d9b4b26601444f6d ("x86/hpet: Convert to hotplug state machine")
in testcase: boot
on test machine: 2 threads qemu-system-x86_64 -enable-kvm -cpu Nehalem with 320M memory
caused below changes:
+------------------------------------------------------------+------------+------------+
| | e6c408103b | a28b41ab00 |
+------------------------------------------------------------+------------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 16 | 16 |
| genirq:Flags_mismatch_irq##(serial)vs.#(goldfish_pdev_bus) | 16 | 2 |
| genirq:Flags_mismatch_irq | 3 | |
| genirq:Flags_mismatch_irq##(serial)vs.#(gold | 1 | |
| genirq:Flags_mismatch_irq##(serial)vs | 1 | |
| RIP:__lock_acquire | 0 | 14 |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 5 |
| backtrace:populate_rootfs | 0 | 14 |
| backtrace:kernel_init_freeable | 0 | 14 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 9 |
| backtrace:vfs_write | 0 | 12 |
| backtrace:SyS_write | 0 | 12 |
| genirq:Flags_mismatch_irq##(serial)vs.#(goldfis | 0 | 1 |
+------------------------------------------------------------+------------+------------+
[ 1.659021] Unpacking initramfs...
[ 1.696928] workqueue: round-robin CPU selection forced, expect performance impact
[ 1.702995] general protection fault: 0000 [#1]
[ 1.704143] Modules linked in:
[ 1.704950] CPU: 0 PID: 1 Comm: swapper Not tainted 4.7.0-rc7-00193-ga28b41a #1
[ 1.709158] task: ffff880012052000 ti: ffff880012054000 task.ti: ffff880012054000
[ 1.713142] RIP: 0010:[<ffffffff84884ef2>] [<ffffffff84884ef2>] __lock_acquire+0xce/0x649
[ 1.718980] RSP: 0000:ffff880012057958 EFLAGS: 00010086
[ 1.720283] RAX: 8d009545e5358b48 RBX: ffff880012052000 RCX: 0000000000000000
[ 1.723761] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8482509c
[ 1.732066] RBP: ffff880012057990 R08: 0000000000000001 R09: 0000000000000001
[ 1.735294] R10: 0000000000000000 R11: 000000000000024c R12: ffffffff8482509c
[ 1.742172] R13: ffffffff8482509c R14: 0000000000000001 R15: 0000000000000000
[ 1.745787] FS: 0000000000000000(0000) GS:ffffffff85022000(0000) knlGS:0000000000000000
[ 1.758843] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.760295] CR2: 00000000ffffffff CR3: 000000000500c000 CR4: 00000000000006f0
[ 1.762067] Stack:
[ 1.762570] 0000000000000001 ffff880000000000 0000000000000046 ffff880012052000
[ 1.765942] ffffffff8482509c 0000000000000000 0000000000000000 ffff8800120579f0
[ 1.767859] ffffffff84885938 0000000000000000 ffffffff84876eac 0000000000000000
[ 1.771214] Call Trace:
[ 1.775343] [<ffffffff8482509c>] ? hpet_disable+0x6c/0xaf
[ 1.777641] [<ffffffff84885938>] lock_acquire+0x7e/0xa3
[ 1.778951] [<ffffffff84876eac>] ? try_to_wake_up+0x2c/0x166
[ 1.785446] [<ffffffff84825084>] ? hpet_disable+0x54/0xaf
[ 1.786934] [<ffffffff84825084>] ? hpet_disable+0x54/0xaf
[ 1.789200] [<ffffffff84bb6b31>] _raw_spin_lock_irqsave+0x3d/0x4f
[ 1.790751] [<ffffffff84876eac>] ? try_to_wake_up+0x2c/0x166
[ 1.795845] [<ffffffff84824b44>] ? hpet_msi_set_periodic+0x11/0x11
[ 1.804788] [<ffffffff84876eac>] try_to_wake_up+0x2c/0x166
[ 1.806206] [<ffffffff848c8725>] ? __add_to_page_cache_locked+0x1e2/0x222
[ 1.807936] [<ffffffff84876ff6>] wake_up_process+0x10/0x12
[ 1.809329] [<ffffffff8485e132>] wakeup_softirqd+0x1d/0x1f
[ 1.812342] [<ffffffff8485e824>] raise_softirq_irqoff+0x27/0x29
[ 1.813837] [<ffffffff8485e92d>] raise_softirq+0x23/0x49
[ 1.815192] [<ffffffff84895d6e>] rcu_sched_qs+0x80/0xa7
[ 1.822906] [<ffffffff84bb2e01>] __schedule+0x11b/0x51a
[ 1.824266] [<ffffffff84bb3328>] preempt_schedule_common+0x1d/0x31
[ 1.826627] [<ffffffff84bb334f>] _cond_resched+0x13/0x1f
[ 1.832048] [<ffffffff848c9502>] generic_perform_write+0x100/0x19d
[ 1.835279] [<ffffffff848ca3cf>] __generic_file_write_iter+0xfd/0x164
[ 1.845691] [<ffffffff848ca47e>] generic_file_write_iter+0x48/0x92
[ 1.847286] [<ffffffff8490867e>] __vfs_write+0x77/0xa0
[ 1.848452] [<ffffffff84909064>] vfs_write+0xa2/0xc8
[ 1.849698] [<ffffffff850a25c2>] ? initrd_load+0x3f/0x3f
[ 1.852370] [<ffffffff84909c50>] SyS_write+0x4b/0x7b
[ 1.853642] [<ffffffff850a294e>] xwrite+0x26/0x5c
[ 1.855805] [<ffffffff850a2a0d>] do_copy+0x89/0xb6
[ 1.860184] [<ffffffff850a272c>] write_buffer+0x23/0x34
[ 1.861541] [<ffffffff850a27ae>] flush_buffer+0x71/0x8e
[ 1.862916] [<ffffffff850be95f>] __gunzip+0x266/0x306
[ 1.873568] [<ffffffff850be6ef>] ? bunzip2+0x3c7/0x3c7
[ 1.878009] [<ffffffff850a273d>] ? write_buffer+0x34/0x34
[ 1.881612] [<ffffffff850a1703>] ? do_early_param+0x8f/0x8f
[ 1.883092] [<ffffffff850bea10>] gunzip+0x11/0x13
[ 1.884173] [<ffffffff850a25c2>] ? initrd_load+0x3f/0x3f
[ 1.892656] [<ffffffff850a2eef>] unpack_to_rootfs+0x12d/0x236
[ 1.898923] [<ffffffff850a25c2>] ? initrd_load+0x3f/0x3f
[ 1.900131] [<ffffffff850a2ff8>] ? unpack_to_rootfs+0x236/0x236
[ 1.901469] [<ffffffff850a304f>] populate_rootfs+0x57/0xa6
[ 1.902717] [<ffffffff8480041b>] do_one_initcall+0x89/0x116
[ 1.904536] [<ffffffff850a1703>] ? do_early_param+0x8f/0x8f
[ 1.913652] [<ffffffff850a1ff0>] kernel_init_freeable+0x113/0x1a2
[ 1.915210] [<ffffffff84bad9a0>] kernel_init+0x9/0xe6
[ 1.916364] [<ffffffff84bb6e2f>] ret_from_fork+0x1f/0x40
[ 1.917570] [<ffffffff84bad997>] ? rest_init+0x12e/0x12e
[ 1.918778] Code: 44 89 f8 49 8b 44 c4 08 48 85 c0 75 1e 31 d2 44 89 fe 4c 89 e7 44 89 4d d4 e8 a0 cf ff ff 48 85 c0 44 8b 4d d4 0f 84 f9 04 00 00 <ff> 80 98 01 00 00 83 3d 71 cb 54 01 00 44 8b ab f0 05 00 00 0f
[ 1.929485] RIP [<ffffffff84884ef2>] __lock_acquire+0xce/0x649
[ 1.933687] RSP <ffff880012057958>
[ 1.934556] ---[ end trace 6dd969d28917cdd4 ]---
[ 1.945686] Kernel panic - not syncing: Fatal exception
FYI, raw QEMU command line is:
qemu-system-x86_64 -enable-kvm -cpu Nehalem -kernel /pkg/linux/x86_64-randconfig-s3-07121850/gcc-6/a28b41ab00dc93b9b16deda9d9b4b26601444f6d/vmlinuz-4.7.0-rc7-00193-ga28b41a -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-intel12-yocto-x86_64-1/bisect_boot-1-yocto-minimal-x86_64.cgz-x86_64-randconfig-s3-07121850-a28b41ab00dc93b9b16deda9d9b4b26601444f6d-20160714-59086-9z8290-1.yaml ARCH=x86_64 kconfig=x86_64-randconfig-s3-07121850 branch=linux-devel/devel-spot-201607121801 commit=a28b41ab00dc93b9b16deda9d9b4b26601444f6d BOOT_IMAGE=/pkg/linux/x86_64-randconfig-s3-07121850/gcc-6/a28b41ab00dc93b9b16deda9d9b4b26601444f6d/vmlinuz-4.7.0-rc7-00193-ga28b41a max_uptime=600 RESULT_ROOT=/result/boot/1/vm-intel12-yocto-x86_64/yocto-minimal-x86_64.cgz/x86_64-randconfig-s3-07121850/gcc-6/a28b41ab00dc93b9b16deda9d9b4b26601444f6d/0 LKP_SERVER=inn earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-intel12-yocto-x86_64-1::dhcp drbd.minor_count=8' -initrd /fs/KVM/initrd-vm-intel12-yocto-x86_64-1 -m 320 -smp 2 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -drive file=/fs/KVM/disk0-vm-intel12-yocto-x86_64-1,media=disk,if=virtio -drive file=/fs/KVM/disk1-vm-intel12-yocto-x86_64-1,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-vm-intel12-yocto-x86_64-1 -serial file:/dev/shm/kboot/serial-vm-intel12-yocto-x86_64-1 -daemonize -display none -monitor null
Thanks,
Xiaolong
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