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Date: Wed, 15 Jun 2016 20:36:44 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Trond Myklebust <trond.myklebust@...marydata.com>
Cc: lkp@...org, Stephen Rothwell <sfr@...b.auug.org.au>,
LKML <linux-kernel@...r.kernel.org>
Subject: [NFS] 0a68b8bb7e: INFO: suspicious RCU usage. ]
FYI, we noticed the following commit:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 0a68b8bb7e9530d823c3d87c8fd59b04fc9615da ("NFS: Cache access checks more aggressively")
on test machine: vm-kbuild-1G: 2 threads qemu-system-x86_64 -enable-kvm -cpu Haswell,+smep,+smap with 1G memory
caused below changes:
+------------------------------------------------------------------------------------+------------+------------+
| | 38512aa98a | 0a68b8bb7e |
+------------------------------------------------------------------------------------+------------+------------+
| boot_successes | 12 | 4 |
| boot_failures | 0 | 8 |
| INFO:suspicious_RCU_usage | 0 | 8 |
| BUG:sleeping_function_called_from_invalid_context_at_mm/slab.h | 0 | 8 |
| INFO:lockdep_is_turned_off | 0 | 8 |
| BUG:scheduling_while_atomic | 0 | 8 |
| WARNING:at_kernel/softirq.c:#__local_bh_disable_ip | 0 | 8 |
| WARNING:at_kernel/time/timer.c:#del_timer_sync | 0 | 8 |
| Kernel_panic-not_syncing:Aiee,killing_interrupt_handler | 0 | 5 |
| backtrace:path_init | 0 | 8 |
| backtrace:do_sys_open | 0 | 8 |
| backtrace:SyS_open | 0 | 8 |
| backtrace:vfs_stat | 0 | 8 |
| backtrace:SyS_newstat | 0 | 8 |
| backtrace:vfs_lstat | 0 | 6 |
| backtrace:SyS_newlstat | 0 | 6 |
| BUG:sleeping_function_called_from_invalid_context_at_net/core/sock.c | 0 | 2 |
| BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/percpu-rwsem.c | 0 | 1 |
| BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/rwsem.c | 0 | 1 |
+------------------------------------------------------------------------------------+------------+------------+
[ 26.900148] mount.nfs (3915) used greatest stack depth: 11520 bytes left
[ 27.789221]
[ 27.789555] ===============================
[ 27.790151] [ INFO: suspicious RCU usage. ]
[ 27.791250] 4.7.0-rc3-00002-g0a68b8b #245 Not tainted
[ 27.792365] -------------------------------
[ 27.793372] include/linux/rcupdate.h:554 Illegal context switch in RCU read-side critical section!
[ 27.795560]
[ 27.795560] other info that might help us debug this:
[ 27.795560]
[ 27.797919]
[ 27.797919] rcu_scheduler_active = 1, debug_locks = 0
[ 27.799714] 2 locks held by wrapper/3977:
[ 27.800746] #0: (rcu_read_lock){......}, at: [<ffffffff811ff96c>] path_init+0x262/0x66d
[ 27.803024] #1: (rcu_read_lock){......}, at: [<ffffffff812f671a>] nfs_permission+0xa7/0x245
[ 27.805430]
[ 27.805430] stack backtrace:
[ 27.806883] CPU: 0 PID: 3977 Comm: wrapper Not tainted 4.7.0-rc3-00002-g0a68b8b #245
[ 27.808716] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 27.810807] 0000000000000000 ffff88003c5bfaf8 ffffffff8155aa0d ffff88003d708040
[ 27.812890] 0000000000000001 ffff88003c5bfb28 ffffffff810e8a8c ffffffff82217ee0
[ 27.814970] 0000000000000184 0000000000000000 00000000000000d8 ffff88003c5bfb50
[ 27.817034] Call Trace:
[ 27.817874] [<ffffffff8155aa0d>] dump_stack+0x86/0xc0
[ 27.818989] [<ffffffff810e8a8c>] lockdep_rcu_suspicious+0xf7/0x100
[ 27.820323] [<ffffffff810c6d39>] ___might_sleep+0x58/0x202
[ 27.821485] [<ffffffff810c6f58>] __might_sleep+0x75/0x7c
[ 27.822620] [<ffffffff812f9372>] ? nfs_alloc_fattr+0x20/0x37
[ 27.823797] [<ffffffff811e7576>] kmem_cache_alloc_trace+0x48/0x281
[ 27.825037] [<ffffffff812f9372>] nfs_alloc_fattr+0x20/0x37
[ 27.826214] [<ffffffff812fac85>] __nfs_revalidate_inode+0x14f/0x3bf
[ 27.827519] [<ffffffff812f65b7>] nfs_do_access+0x578/0x5fb
[ 27.828664] [<ffffffff81c99094>] ? generic_lookup_cred+0x1a/0x1c
[ 27.829971] [<ffffffff81c98034>] ? rpcauth_lookupcred+0x61/0x6a
[ 27.831189] [<ffffffff812f679c>] nfs_permission+0x129/0x245
[ 27.832343] [<ffffffff811fee2d>] __inode_permission+0x3a/0x8d
[ 27.833518] [<ffffffff811feebf>] inode_permission+0x3f/0x41
[ 27.834668] [<ffffffff81201ff5>] link_path_walk+0x47/0x45e
[ 27.835814] [<ffffffff811ff9de>] ? path_init+0x2d4/0x66d
[ 27.836944] [<ffffffff81202ffb>] path_openat+0x2ab/0x30a
[ 27.838071] [<ffffffff81203e2b>] do_filp_open+0x4d/0xa3
[ 27.839262] [<ffffffff8106ab20>] ? sched_clock+0x9/0xd
[ 27.840416] [<ffffffff81211e07>] ? __alloc_fd+0x1b6/0x1c8
[ 27.841570] [<ffffffff81ccc29b>] ? _raw_spin_unlock+0x27/0x31
[ 27.842766] [<ffffffff81211e07>] ? __alloc_fd+0x1b6/0x1c8
[ 27.843916] [<ffffffff811f4059>] do_sys_open+0x140/0x1d0
[ 27.845068] [<ffffffff811f4059>] ? do_sys_open+0x140/0x1d0
[ 27.846225] [<ffffffff811f4107>] SyS_open+0x1e/0x20
[ 27.847317] [<ffffffff81cccb3c>] entry_SYSCALL_64_fastpath+0x1f/0xbd
[ 27.848685] BUG: sleeping function called from invalid context at mm/slab.h:388
[ 27.850910] in_atomic(): 1, irqs_disabled(): 0, pid: 3977, name: wrapper
[ 27.852222] INFO: lockdep is turned off.
[ 27.853205] CPU: 0 PID: 3977 Comm: wrapper Not tainted 4.7.0-rc3-00002-g0a68b8b #245
[ 27.855038] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 27.856996] 0000000000000000 ffff88003c5bfb28 ffffffff8155aa0d ffff88003d708040
[ 27.859226] 0000000000000184 ffff88003c5bfb50 ffffffff810c6edc ffffffff82217ee0
[ 27.861337] 0000000000000184 0000000000000000 ffff88003c5bfb78 ffffffff810c6f58
[ 27.863420] Call Trace:
[ 27.864208] [<ffffffff8155aa0d>] dump_stack+0x86/0xc0
[ 27.865322] [<ffffffff810c6edc>] ___might_sleep+0x1fb/0x202
[ 27.866487] [<ffffffff810c6f58>] __might_sleep+0x75/0x7c
[ 27.867648] [<ffffffff812f9372>] ? nfs_alloc_fattr+0x20/0x37
[ 27.868817] [<ffffffff811e7576>] kmem_cache_alloc_trace+0x48/0x281
[ 27.870173] [<ffffffff812f9372>] nfs_alloc_fattr+0x20/0x37
[ 27.871329] [<ffffffff812fac85>] __nfs_revalidate_inode+0x14f/0x3bf
[ 27.872563] [<ffffffff812f65b7>] nfs_do_access+0x578/0x5fb
[ 27.873703] [<ffffffff81c99094>] ? generic_lookup_cred+0x1a/0x1c
[ 27.874905] [<ffffffff81c98034>] ? rpcauth_lookupcred+0x61/0x6a
[ 27.876111] [<ffffffff812f679c>] nfs_permission+0x129/0x245
[ 27.877272] [<ffffffff811fee2d>] __inode_permission+0x3a/0x8d
[ 27.878492] [<ffffffff811feebf>] inode_permission+0x3f/0x41
[ 27.879738] [<ffffffff81201ff5>] link_path_walk+0x47/0x45e
[ 27.880920] [<ffffffff811ff9de>] ? path_init+0x2d4/0x66d
[ 27.882058] [<ffffffff81202ffb>] path_openat+0x2ab/0x30a
[ 27.883188] [<ffffffff81203e2b>] do_filp_open+0x4d/0xa3
[ 27.884314] [<ffffffff8106ab20>] ? sched_clock+0x9/0xd
[ 27.885425] [<ffffffff81211e07>] ? __alloc_fd+0x1b6/0x1c8
[ 27.886563] [<ffffffff81ccc29b>] ? _raw_spin_unlock+0x27/0x31
[ 27.887803] [<ffffffff81211e07>] ? __alloc_fd+0x1b6/0x1c8
[ 27.888945] [<ffffffff811f4059>] do_sys_open+0x140/0x1d0
[ 27.890202] [<ffffffff811f4059>] ? do_sys_open+0x140/0x1d0
[ 27.891357] [<ffffffff811f4107>] SyS_open+0x1e/0x20
[ 27.892453] [<ffffffff81cccb3c>] entry_SYSCALL_64_fastpath+0x1f/0xbd
[ 27.894021] BUG: scheduling while atomic: wrapper/3977/0x00000003
[ 27.895393] INFO: lockdep is turned off.
[ 27.896350] Modules linked in: snd_pcsp
[ 27.897521] CPU: 0 PID: 3977 Comm: wrapper Not tainted 4.7.0-rc3-00002-g0a68b8b #245
[ 27.899428] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 27.901432] 0000000000000000 ffff88003c5bf7f8 ffffffff8155aa0d ffff88003d708040
[ 27.903518] 0000000000000082 ffff88003c5bf810 ffffffff810c6fc2 ffff880036fd7500
[ 27.905609] ffff88003c5bf870 ffffffff81cc70a5 00ffffff810e0549 ffffffff810ea6d6
[ 27.907683] Call Trace:
[ 27.908470] [<ffffffff8155aa0d>] dump_stack+0x86/0xc0
[ 27.909690] [<ffffffff810c6fc2>] __schedule_bug+0x63/0x72
[ 27.910861] [<ffffffff81cc70a5>] __schedule+0x6b/0xa73
[ 27.911969] [<ffffffff810ea6d6>] ? trace_hardirqs_on_caller+0x16/0x19a
[ 27.913243] [<ffffffff81c9620c>] ? __rpc_wait_for_completion_task+0x2f/0x2f
[ 27.914568] [<ffffffff81cc7b35>] schedule+0x88/0x9d
[ 27.915644] [<ffffffff81c96230>] rpc_wait_bit_killable+0x24/0xab
[ 27.916848] [<ffffffff81cc7ec3>] __wait_on_bit+0x4c/0x7e
[ 27.918044] [<ffffffff81cc8064>] out_of_line_wait_on_bit+0x72/0x7d
[ 27.919371] [<ffffffff81c9620c>] ? __rpc_wait_for_completion_task+0x2f/0x2f
[ 27.920733] [<ffffffff810e09f8>] ? autoremove_wake_function+0x3a/0x3a
[ 27.921998] [<ffffffff81c8b58d>] ? call_transmit_status+0xa4/0xa4
[ 27.923218] [<ffffffff81c971c4>] __rpc_execute+0x203/0x4e7
[ 27.924369] [<ffffffff810e09b9>] ? wake_up_bit+0x25/0x2a
[ 27.925495] [<ffffffff81c977c1>] rpc_execute+0x162/0x1ca
[ 27.926619] [<ffffffff81c8d187>] rpc_run_task+0x121/0x12d
[ 27.927806] [<ffffffff8130e8ef>] nfs4_call_sync_sequence+0x55/0x73
[ 27.929101] [<ffffffff81313cd6>] nfs4_call_sync+0x31/0x33
[ 27.930305] [<ffffffff813169e9>] _nfs4_proc_getattr+0xb6/0xc8
[ 27.931498] [<ffffffff81316a44>] nfs4_proc_getattr+0x49/0x1cc
[ 27.932688] [<ffffffff81316a44>] ? nfs4_proc_getattr+0x49/0x1cc
[ 27.933904] [<ffffffff811e76fd>] ? kmem_cache_alloc_trace+0x1cf/0x281
[ 27.935194] [<ffffffff812facd2>] __nfs_revalidate_inode+0x19c/0x3bf
[ 27.936449] [<ffffffff812f65b7>] nfs_do_access+0x578/0x5fb
[ 27.937613] [<ffffffff81c99094>] ? generic_lookup_cred+0x1a/0x1c
[ 27.938839] [<ffffffff81c98034>] ? rpcauth_lookupcred+0x61/0x6a
[ 27.940159] [<ffffffff812f679c>] nfs_permission+0x129/0x245
[ 27.941334] [<ffffffff811fee2d>] __inode_permission+0x3a/0x8d
[ 27.942513] [<ffffffff811feebf>] inode_permission+0x3f/0x41
[ 27.943670] [<ffffffff81201ff5>] link_path_walk+0x47/0x45e
[ 27.944823] [<ffffffff811ff9de>] ? path_init+0x2d4/0x66d
[ 27.945954] [<ffffffff81202ffb>] path_openat+0x2ab/0x30a
[ 27.947083] [<ffffffff81203e2b>] do_filp_open+0x4d/0xa3
[ 27.948286] [<ffffffff8106ab20>] ? sched_clock+0x9/0xd
[ 27.949475] [<ffffffff81211e07>] ? __alloc_fd+0x1b6/0x1c8
[ 27.950650] [<ffffffff81ccc29b>] ? _raw_spin_unlock+0x27/0x31
[ 27.951844] [<ffffffff81211e07>] ? __alloc_fd+0x1b6/0x1c8
[ 27.952993] [<ffffffff811f4059>] do_sys_open+0x140/0x1d0
[ 27.954139] [<ffffffff811f4059>] ? do_sys_open+0x140/0x1d0
[ 27.955302] [<ffffffff811f4107>] SyS_open+0x1e/0x20
[ 27.956395] [<ffffffff81cccb3c>] entry_SYSCALL_64_fastpath+0x1f/0xbd
[ 27.957828] BUG: scheduling while atomic: wrapper/3977/0x7fffffff
[ 27.959169] INFO: lockdep is turned off.
[ 27.960209] Modules linked in: snd_pcsp
[ 27.961339] CPU: 0 PID: 3977 Comm: wrapper Tainted: G W 4.7.0-rc3-00002-g0a68b8b #245
[ 27.963324] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 27.965289] 0000000000000000 ffff88003c5bf850 ffffffff8155aa0d ffff88003d708040
[ 27.967372] 0000000000000082 ffff88003c5bf868 ffffffff810c6fc2 ffff880036fd7500
[ 27.969556] ffff88003c5bf8c8 ffffffff81cc70a5 00ffffff810e0549 ffffffff810ea6d6
[ 27.972728] Call Trace:
[ 27.973587] [<ffffffff8155aa0d>] dump_stack+0x86/0xc0
[ 27.975091] [<ffffffff810c6fc2>] __schedule_bug+0x63/0x72
[ 27.976284] [<ffffffff81cc70a5>] __schedule+0x6b/0xa73
[ 27.977465] [<ffffffff810ea6d6>] ? trace_hardirqs_on_caller+0x16/0x19a
[ 27.978736] [<ffffffff81c9620c>] ? __rpc_wait_for_completion_task+0x2f/0x2f
[ 27.980186] [<ffffffff81cc7b35>] schedule+0x88/0x9d
[ 27.981279] [<ffffffff81c96230>] rpc_wait_bit_killable+0x24/0xab
[ 27.982493] [<ffffffff81cc7ec3>] __wait_on_bit+0x4c/0x7e
[ 27.983619] [<ffffffff81cc8064>] out_of_line_wait_on_bit+0x72/0x7d
[ 27.984856] [<ffffffff81c9620c>] ? __rpc_wait_for_completion_task+0x2f/0x2f
[ 27.986181] [<ffffffff810e09f8>] ? autoremove_wake_function+0x3a/0x3a
[ 27.987445] [<ffffffff81c9620a>] __rpc_wait_for_completion_task+0x2d/0x2f
[ 27.988748] [<ffffffff81311ecd>] nfs4_run_open_task+0x132/0x15f
[ 27.990077] [<ffffffff81317d40>] nfs4_do_open+0x2e3/0x7f1
[ 27.991363] [<ffffffff813182d2>] nfs4_atomic_open+0xe/0x1c
[ 27.992516] [<ffffffff812f6f1d>] nfs_atomic_open+0x240/0x681
[ 27.993688] [<ffffffff8120196a>] lookup_open+0x270/0x603
[ 28.010221] [<ffffffff81202907>] do_last+0x19b/0x5e4
[ 28.011842] [<ffffffff811ff9de>] ? path_init+0x2d4/0x66d
[ 28.013224] [<ffffffff81202fd3>] path_openat+0x283/0x30a
[ 28.014388] [<ffffffff81203e2b>] do_filp_open+0x4d/0xa3
[ 28.015534] [<ffffffff8106ab20>] ? sched_clock+0x9/0xd
[ 28.016709] [<ffffffff81211e07>] ? __alloc_fd+0x1b6/0x1c8
[ 28.017896] [<ffffffff81ccc29b>] ? _raw_spin_unlock+0x27/0x31
[ 28.019167] [<ffffffff81211e07>] ? __alloc_fd+0x1b6/0x1c8
[ 28.020340] [<ffffffff811f4059>] do_sys_open+0x140/0x1d0
[ 28.021480] [<ffffffff811f4059>] ? do_sys_open+0x140/0x1d0
[ 28.022641] [<ffffffff811f4107>] SyS_open+0x1e/0x20
[ 28.023721] [<ffffffff81cccb3c>] entry_SYSCALL_64_fastpath+0x1f/0xbd
[ 28.070995] BUG: scheduling while atomic: wrapper/3982/0x00000003
[ 28.072740] INFO: lockdep is turned off.
[ 28.074139] Modules linked in: snd_pcsp
[ 28.075671] CPU: 1 PID: 3982 Comm: wrapper Tainted: G W 4.7.0-rc3-00002-g0a68b8b #245
[ 28.078411] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 28.081137] 0000000000000000 ffff88003cb7f7f8 ffffffff8155aa0d ffff88003db7c040
[ 28.084408] 0000000000000082 ffff88003cb7f810 ffffffff810c6fc2 ffff8800371d7500
[ 28.087884] ffff88003cb7f870 ffffffff81cc70a5 00ffffff810e0549 ffffffff810ea6d6
[ 28.091383] Call Trace:
[ 28.092675] [<ffffffff8155aa0d>] dump_stack+0x86/0xc0
[ 28.094508] [<ffffffff810c6fc2>] __schedule_bug+0x63/0x72
[ 28.096415] [<ffffffff81cc70a5>] __schedule+0x6b/0xa73
[ 28.098289] [<ffffffff810ea6d6>] ? trace_hardirqs_on_caller+0x16/0x19a
[ 28.100326] [<ffffffff81c9620c>] ? __rpc_wait_for_completion_task+0x2f/0x2f
[ 28.102460] [<ffffffff81cc7b35>] schedule+0x88/0x9d
[ 28.104155] [<ffffffff81c96230>] rpc_wait_bit_killable+0x24/0xab
[ 28.106067] [<ffffffff81cc7ec3>] __wait_on_bit+0x4c/0x7e
[ 28.107914] [<ffffffff81cc8064>] out_of_line_wait_on_bit+0x72/0x7d
[ 28.110011] [<ffffffff81c9620c>] ? __rpc_wait_for_completion_task+0x2f/0x2f
[ 28.112192] [<ffffffff810e09f8>] ? autoremove_wake_function+0x3a/0x3a
[ 28.114204] [<ffffffff81c8b58d>] ? call_transmit_status+0xa4/0xa4
[ 28.116272] [<ffffffff81c971c4>] __rpc_execute+0x203/0x4e7
[ 28.118222] [<ffffffff810e09b9>] ? wake_up_bit+0x25/0x2a
[ 28.120038] [<ffffffff81c977c1>] rpc_execute+0x162/0x1ca
[ 28.121824] [<ffffffff81c8d187>] rpc_run_task+0x121/0x12d
[ 28.123644] [<ffffffff8130e8ef>] nfs4_call_sync_sequence+0x55/0x73
[ 28.125604] [<ffffffff81313cd6>] nfs4_call_sync+0x31/0x33
[ 28.127420] [<ffffffff813169e9>] _nfs4_proc_getattr+0xb6/0xc8
[ 28.129275] [<ffffffff81316a44>] nfs4_proc_getattr+0x49/0x1cc
[ 28.131185] [<ffffffff81316a44>] ? nfs4_proc_getattr+0x49/0x1cc
FYI, raw QEMU command line is:
qemu-system-x86_64 -enable-kvm -cpu Haswell,+smep,+smap -kernel /pkg/linux/x86_64-nfsroot/gcc-6/0a68b8bb7e9530d823c3d87c8fd59b04fc9615da/vmlinuz-4.7.0-rc3-00002-g0a68b8b -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-kbuild-1G-11/bisect_boot-1-debian-x86_64-2015-02-07.cgz-x86_64-nfsroot-0a68b8bb7e9530d823c3d87c8fd59b04fc9615da-20160615-73038-khypb0-0.yaml~ ARCH=x86_64 kconfig=x86_64-nfsroot branch=linux-next/master commit=0a68b8bb7e9530d823c3d87c8fd59b04fc9615da BOOT_IMAGE=/pkg/linux/x86_64-nfsroot/gcc-6/0a68b8bb7e9530d823c3d87c8fd59b04fc9615da/vmlinuz-4.7.0-rc3-00002-g0a68b8b max_uptime=600 RESULT_ROOT=/result/boot/1/vm-kbuild-1G/debian-x86_64-2015-02-07.cgz/x86_64-nfsroot/gcc-6/0a68b8bb7e9530d823c3d87c8fd59b04fc9615da/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-kbuild-1G-11::dhcp' -initrd /fs/sdf1/initrd-vm-kbuild-1G-11 -m 1024 -smp 2 -device e1000,netdev=net0 -netdev user,id=net0,hostfwd=tcp::23010-:22 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -device virtio-scsi-pci,id=scsi0 -drive file=/fs/sdf1/disk0-vm-kbuild-1G-11,if=none,id=hd0,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd0,scsi-id=1,lun=0 -drive file=/fs/sdf1/disk1-vm-kbuild-1G-11,if=none,id=hd1,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd1,scsi-id=1,lun=1 -drive file=/fs/sdf1/disk2-vm-kbuild-1G-11,if=none,id=hd2,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd2,scsi-id=1,lun=2 -drive file=/fs/sdf1/disk3-vm-kbuild-1G-11,if=none,id=hd3,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd3,scsi-id=1,lun=3 -drive file=/fs/sdf1/disk4-vm-kbuild-1G-11,if=none,id=hd4,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd4,scsi-id=1,lun=4 -pidfile /dev/shm/kboot/pid-vm-kbuild-1G-11 -serial file:/dev/shm/kboot/serial-vm-kbuild-1G-11 -daemonize -display none -monitor null
Thanks,
Kernel Test Robot
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