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Message-ID: <20180418134058.l3orjjxcpv7cxjfw@wfg-t540p.sh.intel.com>
Date: Wed, 18 Apr 2018 21:40:58 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Oleg Drokin <oleg.drokin@...el.com>,
Andreas Dilger <andreas.dilger@...el.com>,
James Simmons <jsimmons@...radead.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Denis Petrovic <denis.petrovic@....ece.fr>,
lustre-devel@...ts.lustre.org, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org, lkp@...org
Subject: [cfs_trace_lock_tcd] BUG: KASAN: null-ptr-deref in
cfs_trace_lock_tcd+0x25/0xeb
FYI, it's the same regression, however reported by KASAN.
[ 19.940511] vhci_hcd: dump_port_status_diff:142: +R27
[ 19.940884] vhci_hcd: dump_port_status_diff:150:
[ 19.941126] vhci_hcd: vhci_hub_control:604: bye
[ 19.941703] usb usb2: vhci_bus_suspend
[ 20.967090] ==================================================================
[ 20.968082] BUG: KASAN: null-ptr-deref in cfs_trace_lock_tcd+0x25/0xeb:
cfs_trace_lock_tcd at drivers/staging/lustre/lnet/libcfs/linux/linux-tracefile.c:149
[ 20.968856] Read of size 2 at addr 00000000000000a4 by task swapper/1
[ 20.969604]
[ 20.969817] CPU: 0 PID: 1 Comm: swapper Tainted: G T 4.17.0-rc1 #1
[ 20.970046] Call Trace:
[ 20.970046] dump_stack+0x2e/0x3e:
__dump_stack at lib/dump_stack.c:77
(inlined by) dump_stack at lib/dump_stack.c:123
[ 20.970046] kasan_report+0x2f3/0x360:
kasan_report_error at mm/kasan/report.c:352
(inlined by) kasan_report at mm/kasan/report.c:412
[ 20.970046] __asan_load2+0x31/0xe4
[ 20.970046] cfs_trace_lock_tcd+0x25/0xeb:
cfs_trace_lock_tcd at drivers/staging/lustre/lnet/libcfs/linux/linux-tracefile.c:149
[ 20.970046] libcfs_debug_vmsg2+0x18d/0xd26:
libcfs_debug_vmsg2 at drivers/staging/lustre/lnet/libcfs/tracefile.c:317
[ 20.970046] ? cfs_trace_get_tage+0x957/0x957:
libcfs_debug_vmsg2 at drivers/staging/lustre/lnet/libcfs/tracefile.c:293
[ 20.970046] ? mark_lock+0xe9/0xa16:
mark_lock at kernel/locking/lockdep.c:3121
[ 20.970046] ? fput+0x111/0x11f:
queue_delayed_work at include/linux/workqueue.h:526
(inlined by) schedule_delayed_work at include/linux/workqueue.h:627
(inlined by) fput at fs/file_table.c:280
[ 20.970046] ? lnet_ipif_enumerate+0x541/0x588:
lnet_ipif_enumerate at drivers/staging/lustre/lnet/lnet/lib-socket.c:238
[ 20.970046] ? kasan_slab_free+0x15/0x1e:
kasan_slab_free at mm/kasan/kasan.c:528
[ 20.970046] ? kfree+0x215/0x2cb:
slab_free_hook at mm/slub.c:1388
(inlined by) slab_free_freelist_hook at mm/slub.c:1415
(inlined by) slab_free at mm/slub.c:2988
(inlined by) kfree at mm/slub.c:3944
[ 20.970046] libcfs_debug_msg+0x9b/0xc5:
libcfs_debug_msg at drivers/staging/lustre/lnet/libcfs/tracefile.c:278
[ 20.970046] ? libcfs_debug_vmsg2+0xd26/0xd26:
libcfs_debug_msg at drivers/staging/lustre/lnet/libcfs/tracefile.c:278
[ 20.970046] ksocknal_startup+0x341/0x1228:
ksocknal_enumerate_interfaces at drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c:2634
(inlined by) ksocknal_startup at drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c:2822
[ 20.970046] ? __asan_loadN+0x1d/0x26
[ 20.970046] ? pvclock_clocksource_read+0x162/0x296:
pvclock_clocksource_read at arch/x86/kernel/pvclock.c:89
[ 20.970046] ? ksocknal_base_startup+0xbae/0xbae:
ksocknal_startup at drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c:2796
[ 20.970046] ? pvclock_read_flags+0x5d/0x5d:
pvclock_clocksource_read at arch/x86/kernel/pvclock.c:79
[ 20.970046] ? kasan_check_read+0x1f/0x28:
kasan_check_read at mm/kasan/kasan.c:272
[ 20.970046] ? kvm_clock_read+0x24/0x3a:
kvm_clock_read at arch/x86/kernel/kvmclock.c:89
[ 20.970046] ? kasan_check_write+0x22/0x2b:
kasan_check_write at mm/kasan/kasan.c:278
[ 20.970046] ? sched_clock_local+0xc8/0xfa
[ 20.970046] ? reacquire_held_locks+0x1cd/0x1cd:
lock_release at kernel/locking/lockdep.c:3929
[ 20.970046] ? cfs_percpt_lock+0xdf/0x1ad:
spin_lock at include/linux/spinlock.h:310
(inlined by) cfs_percpt_lock at drivers/staging/lustre/lnet/libcfs/libcfs_lock.c:111
[ 20.970046] ? do_raw_spin_unlock+0x100/0x10d:
arch_spin_unlock at include/linux/spinlock_up.h:48
(inlined by) do_raw_spin_unlock at kernel/locking/spinlock_debug.c:135
[ 20.970046] ? _raw_spin_unlock+0x37/0x4e:
__raw_spin_unlock at include/linux/spinlock_api_smp.h:151
(inlined by) _raw_spin_unlock at kernel/locking/spinlock.c:176
[ 20.970046] ? cfs_percpt_unlock+0x66/0x13a:
spin_unlock at include/linux/spinlock.h:350
(inlined by) cfs_percpt_unlock at drivers/staging/lustre/lnet/libcfs/libcfs_lock.c:140
[ 20.970046] lnet_startup_lndni+0x62a/0xf84:
lnet_startup_lndni at drivers/staging/lustre/lnet/lnet/api-ni.c:1306
[ 20.970046] ? lnet_shutdown_lndni+0xcc/0xcc:
lnet_startup_lndni at drivers/staging/lustre/lnet/lnet/api-ni.c:1210
[ 20.970046] ? __schedule+0xbff/0xc7f:
context_switch at kernel/sched/core.c:2851
(inlined by) __schedule at kernel/sched/core.c:3490
[ 20.970046] ? firmware_map_remove+0x265/0x265:
__schedule at kernel/sched/core.c:3401
[ 20.970046] ? kasan_check_read+0x1f/0x28:
kasan_check_read at mm/kasan/kasan.c:272
[ 20.970046] LNetNIInit+0x5d4/0xbf8:
lnet_startup_lndnis at drivers/staging/lustre/lnet/lnet/api-ni.c:1385
(inlined by) LNetNIInit at drivers/staging/lustre/lnet/lnet/api-ni.c:1543
[ 20.970046] ? lnet_lib_exit+0x147/0x147:
LNetNIInit at drivers/staging/lustre/lnet/lnet/api-ni.c:1497
[ 20.970046] ? del_timer+0x6d/0xf8:
del_timer at kernel/time/timer.c:1200
[ 20.970046] ? add_timer_on+0x32b/0x32b:
del_timer at kernel/time/timer.c:1193
[ 20.970046] ? _raw_spin_unlock_irqrestore+0x74/0x9e:
__raw_spin_unlock_irqrestore at include/linux/spinlock_api_smp.h:160
(inlined by) _raw_spin_unlock_irqrestore at kernel/locking/spinlock.c:184
[ 20.970046] ? trace_hardirqs_on_caller+0x2c8/0x33d:
trace_hardirqs_on_caller at kernel/locking/lockdep.c:2884
[ 20.970046] ? schedule_timeout+0x82b/0x8a7:
schedule_timeout at kernel/time/timer.c:1807
[ 20.970046] ? kasan_kmalloc+0x1c5/0x1e1:
save_stack at mm/kasan/kasan.c:454
(inlined by) set_track at mm/kasan/kasan.c:460
(inlined by) kasan_kmalloc at mm/kasan/kasan.c:553
[ 20.970046] ? console_conditional_schedule+0x44/0x44:
schedule_timeout at kernel/time/timer.c:1763
[ 20.970046] ? do_one_initcall+0x158/0x3ac:
do_one_initcall at init/main.c:883
[ 20.970046] ? kernel_init_freeable+0x2b8/0x434:
do_initcall_level at init/main.c:951
(inlined by) do_initcalls at init/main.c:959
(inlined by) do_basic_setup at init/main.c:977
(inlined by) kernel_init_freeable at init/main.c:1127
[ 20.970046] ? kernel_init+0x13/0x1ae:
kernel_init at init/main.c:1053
[ 20.970046] ? ret_from_fork+0x24/0x30:
ret_from_fork at arch/x86/entry/entry_64.S:418
[ 20.970046] ? __check_object_size+0x8d7/0xa08:
__check_object_size at mm/usercopy.c:262
[ 20.970046] ? usercopy_abort+0xb7/0xb7:
__check_object_size at mm/usercopy.c:250
[ 20.970046] ? __lock_is_held+0x39/0xbb:
__lock_is_held at kernel/locking/lockdep.c:3737 (discriminator 1)
[ 20.970046] ? mark_held_locks+0x2c/0xb2:
mark_held_locks at kernel/locking/lockdep.c:2795 (discriminator 1)
[ 20.970046] ? debug_check_no_locks_freed+0x237/0x25f:
debug_check_no_locks_freed at kernel/locking/lockdep.c:4421 (discriminator 2)
[ 20.970046] ? collect_expired_timers+0x23b/0x23b:
process_timeout at kernel/time/timer.c:1727
[ 20.970046] ? lockdep_init_map+0x10/0x19:
lockdep_init_map at kernel/locking/lockdep.c:3239
[ 20.970046] srpc_startup+0x136/0x352:
srpc_startup at drivers/staging/lustre/lnet/selftest/rpc.c:1613
[ 20.970046] ? srpc_shutdown+0x1f0/0x1f0:
srpc_startup at drivers/staging/lustre/lnet/selftest/rpc.c:1599
[ 20.970046] ? kvmalloc_node+0x6b/0xb6:
__kmalloc_node at include/linux/slab.h:383
(inlined by) kmalloc_node at include/linux/slab.h:554
(inlined by) kvmalloc_node at mm/util.c:421
[ 20.970046] lnet_selftest_init+0x33a/0x4f5:
lnet_selftest_init at drivers/staging/lustre/lnet/selftest/module.c:134
[ 20.970046] ? lnet_selftest_exit+0x13e/0x13e:
lnet_selftest_init at drivers/staging/lustre/lnet/selftest/module.c:90
[ 20.970046] ? lustre_insert_debugfs+0x150/0x150:
libcfs_init at drivers/staging/lustre/lnet/libcfs/module.c:531
[ 20.970046] ? lnet_init+0x1df/0x1df:
ksocklnd_init at drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c:2885
[ 20.970046] ? lnet_selftest_exit+0x13e/0x13e:
lnet_selftest_init at drivers/staging/lustre/lnet/selftest/module.c:90
[ 20.970046] do_one_initcall+0x158/0x3ac:
do_one_initcall at init/main.c:883
[ 20.970046] ? start_kernel+0xbf5/0xbf5:
do_one_initcall at init/main.c:874
[ 20.970046] kernel_init_freeable+0x2b8/0x434:
do_initcall_level at init/main.c:951
(inlined by) do_initcalls at init/main.c:959
(inlined by) do_basic_setup at init/main.c:977
(inlined by) kernel_init_freeable at init/main.c:1127
[ 20.970046] ? rest_init+0x1d2/0x1d2:
kernel_init at init/main.c:1050
[ 20.970046] kernel_init+0x13/0x1ae:
kernel_init at init/main.c:1053
[ 20.970046] ? rest_init+0x1d2/0x1d2:
kernel_init at init/main.c:1050
[ 20.970046] ret_from_fork+0x24/0x30:
ret_from_fork at arch/x86/entry/entry_64.S:418
[ 20.970046] ==================================================================
[ 20.970046] Disabling lock debugging due to kernel taint
[ 21.007543] BUG: unable to handle kernel NULL pointer dereference at 00000000000000a4
[ 21.009103] PGD 0 P4D 0
[ 21.009432] Oops: 0000 [#1] DEBUG_PAGEALLOC KASAN PTI
[ 21.010063] CPU: 0 PID: 1 Comm: swapper Tainted: G B T 4.17.0-rc1 #1
[ 21.011023] RIP: 0010:cfs_trace_lock_tcd+0x25/0xeb:
cfs_trace_lock_tcd at drivers/staging/lustre/lnet/libcfs/linux/linux-tracefile.c:149
[ 21.011650] RSP: 0000:ffff880014c87380 EFLAGS: 00010202
[ 21.012299] RAX: 0000000000000202 RBX: 0000000000000000 RCX: ffffffff8119215d
[ 21.013197] RDX: dffffc0000000000 RSI: 0000000000000003 RDI: 0000000000000202
[ 21.014074] RBP: ffff880014c87398 R08: 0000000000000001 R09: 0000000000000001
[ 21.014940] R10: ffffed0002990e5a R11: 0000000000000001 R12: 00000000000000a4
[ 21.015818] R13: 0000000000000000 R14: ffff88001402d680 R15: ffff880014c87970
[ 21.016634] FS: 0000000000000000(0000) GS:ffffffff842e9000(0000) knlGS:0000000000000000
[ 21.016892] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 21.016892] CR2: 00000000000000a4 CR3: 0000000004226000 CR4: 00000000000006f0
[ 21.016892] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 21.016892] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 21.016892] Call Trace:
[ 21.016892] libcfs_debug_vmsg2+0x18d/0xd26:
libcfs_debug_vmsg2 at drivers/staging/lustre/lnet/libcfs/tracefile.c:317
[ 21.016892] ? cfs_trace_get_tage+0x957/0x957:
libcfs_debug_vmsg2 at drivers/staging/lustre/lnet/libcfs/tracefile.c:293
[ 21.016892] ? mark_lock+0xe9/0xa16:
mark_lock at kernel/locking/lockdep.c:3121
[ 21.016892] ? fput+0x111/0x11f:
queue_delayed_work at include/linux/workqueue.h:526
(inlined by) schedule_delayed_work at include/linux/workqueue.h:627
(inlined by) fput at fs/file_table.c:280
[ 21.016892] ? lnet_ipif_enumerate+0x541/0x588:
lnet_ipif_enumerate at drivers/staging/lustre/lnet/lnet/lib-socket.c:238
[ 21.016892] ? kasan_slab_free+0x15/0x1e:
kasan_slab_free at mm/kasan/kasan.c:528
[ 21.016892] ? kfree+0x215/0x2cb:
slab_free_hook at mm/slub.c:1388
(inlined by) slab_free_freelist_hook at mm/slub.c:1415
(inlined by) slab_free at mm/slub.c:2988
(inlined by) kfree at mm/slub.c:3944
[ 21.016892] libcfs_debug_msg+0x9b/0xc5:
libcfs_debug_msg at drivers/staging/lustre/lnet/libcfs/tracefile.c:278
[ 21.016892] ? libcfs_debug_vmsg2+0xd26/0xd26:
libcfs_debug_msg at drivers/staging/lustre/lnet/libcfs/tracefile.c:278
[ 21.016892] ksocknal_startup+0x341/0x1228:
ksocknal_enumerate_interfaces at drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c:2634
(inlined by) ksocknal_startup at drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c:2822
[ 21.016892] ? __asan_loadN+0x1d/0x26
[ 21.016892] ? pvclock_clocksource_read+0x162/0x296:
pvclock_clocksource_read at arch/x86/kernel/pvclock.c:89
[ 21.016892] ? ksocknal_base_startup+0xbae/0xbae:
ksocknal_startup at drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c:2796
[ 21.016892] ? pvclock_read_flags+0x5d/0x5d:
pvclock_clocksource_read at arch/x86/kernel/pvclock.c:79
[ 21.016892] ? kasan_check_read+0x1f/0x28:
kasan_check_read at mm/kasan/kasan.c:272
[ 21.016892] ? kvm_clock_read+0x24/0x3a:
kvm_clock_read at arch/x86/kernel/kvmclock.c:89
[ 21.016892] ? kasan_check_write+0x22/0x2b:
kasan_check_write at mm/kasan/kasan.c:278
[ 21.016892] ? sched_clock_local+0xc8/0xfa
[ 21.016892] ? reacquire_held_locks+0x1cd/0x1cd:
lock_release at kernel/locking/lockdep.c:3929
[ 21.016892] ? cfs_percpt_lock+0xdf/0x1ad:
spin_lock at include/linux/spinlock.h:310
(inlined by) cfs_percpt_lock at drivers/staging/lustre/lnet/libcfs/libcfs_lock.c:111
[ 21.016892] ? do_raw_spin_unlock+0x100/0x10d:
arch_spin_unlock at include/linux/spinlock_up.h:48
(inlined by) do_raw_spin_unlock at kernel/locking/spinlock_debug.c:135
[ 21.016892] ? _raw_spin_unlock+0x37/0x4e:
__raw_spin_unlock at include/linux/spinlock_api_smp.h:151
(inlined by) _raw_spin_unlock at kernel/locking/spinlock.c:176
[ 21.016892] ? cfs_percpt_unlock+0x66/0x13a:
spin_unlock at include/linux/spinlock.h:350
(inlined by) cfs_percpt_unlock at drivers/staging/lustre/lnet/libcfs/libcfs_lock.c:140
[ 21.016892] lnet_startup_lndni+0x62a/0xf84:
lnet_startup_lndni at drivers/staging/lustre/lnet/lnet/api-ni.c:1306
[ 21.016892] ? lnet_shutdown_lndni+0xcc/0xcc:
lnet_startup_lndni at drivers/staging/lustre/lnet/lnet/api-ni.c:1210
[ 21.016892] ? __schedule+0xbff/0xc7f:
context_switch at kernel/sched/core.c:2851
(inlined by) __schedule at kernel/sched/core.c:3490
[ 21.016892] ? firmware_map_remove+0x265/0x265:
__schedule at kernel/sched/core.c:3401
[ 21.016892] ? kasan_check_read+0x1f/0x28:
kasan_check_read at mm/kasan/kasan.c:272
[ 21.016892] LNetNIInit+0x5d4/0xbf8:
lnet_startup_lndnis at drivers/staging/lustre/lnet/lnet/api-ni.c:1385
(inlined by) LNetNIInit at drivers/staging/lustre/lnet/lnet/api-ni.c:1543
[ 21.016892] ? lnet_lib_exit+0x147/0x147:
LNetNIInit at drivers/staging/lustre/lnet/lnet/api-ni.c:1497
[ 21.016892] ? del_timer+0x6d/0xf8:
del_timer at kernel/time/timer.c:1200
[ 21.016892] ? add_timer_on+0x32b/0x32b:
del_timer at kernel/time/timer.c:1193
[ 21.016892] ? _raw_spin_unlock_irqrestore+0x74/0x9e:
__raw_spin_unlock_irqrestore at include/linux/spinlock_api_smp.h:160
(inlined by) _raw_spin_unlock_irqrestore at kernel/locking/spinlock.c:184
[ 21.016892] ? trace_hardirqs_on_caller+0x2c8/0x33d:
trace_hardirqs_on_caller at kernel/locking/lockdep.c:2884
[ 21.016892] ? schedule_timeout+0x82b/0x8a7:
schedule_timeout at kernel/time/timer.c:1807
[ 21.016892] ? kasan_kmalloc+0x1c5/0x1e1:
save_stack at mm/kasan/kasan.c:454
(inlined by) set_track at mm/kasan/kasan.c:460
(inlined by) kasan_kmalloc at mm/kasan/kasan.c:553
[ 21.016892] ? console_conditional_schedule+0x44/0x44:
schedule_timeout at kernel/time/timer.c:1763
[ 21.016892] ? do_one_initcall+0x158/0x3ac:
do_one_initcall at init/main.c:883
[ 21.016892] ? kernel_init_freeable+0x2b8/0x434:
do_initcall_level at init/main.c:951
(inlined by) do_initcalls at init/main.c:959
(inlined by) do_basic_setup at init/main.c:977
(inlined by) kernel_init_freeable at init/main.c:1127
[ 21.016892] ? kernel_init+0x13/0x1ae:
kernel_init at init/main.c:1053
[ 21.016892] ? ret_from_fork+0x24/0x30:
ret_from_fork at arch/x86/entry/entry_64.S:418
[ 21.016892] ? __check_object_size+0x8d7/0xa08:
__check_object_size at mm/usercopy.c:262
[ 21.016892] ? usercopy_abort+0xb7/0xb7:
__check_object_size at mm/usercopy.c:250
[ 21.016892] ? __lock_is_held+0x39/0xbb:
__lock_is_held at kernel/locking/lockdep.c:3737 (discriminator 1)
[ 21.016892] ? mark_held_locks+0x2c/0xb2:
mark_held_locks at kernel/locking/lockdep.c:2795 (discriminator 1)
[ 21.016892] ? debug_check_no_locks_freed+0x237/0x25f:
debug_check_no_locks_freed at kernel/locking/lockdep.c:4421 (discriminator 2)
[ 21.016892] ? collect_expired_timers+0x23b/0x23b:
process_timeout at kernel/time/timer.c:1727
[ 21.016892] ? lockdep_init_map+0x10/0x19:
lockdep_init_map at kernel/locking/lockdep.c:3239
[ 21.016892] srpc_startup+0x136/0x352:
srpc_startup at drivers/staging/lustre/lnet/selftest/rpc.c:1613
[ 21.016892] ? srpc_shutdown+0x1f0/0x1f0:
srpc_startup at drivers/staging/lustre/lnet/selftest/rpc.c:1599
[ 21.016892] ? kvmalloc_node+0x6b/0xb6:
__kmalloc_node at include/linux/slab.h:383
(inlined by) kmalloc_node at include/linux/slab.h:554
(inlined by) kvmalloc_node at mm/util.c:421
[ 21.016892] lnet_selftest_init+0x33a/0x4f5:
lnet_selftest_init at drivers/staging/lustre/lnet/selftest/module.c:134
[ 21.016892] ? lnet_selftest_exit+0x13e/0x13e:
lnet_selftest_init at drivers/staging/lustre/lnet/selftest/module.c:90
[ 21.016892] ? lustre_insert_debugfs+0x150/0x150:
libcfs_init at drivers/staging/lustre/lnet/libcfs/module.c:531
[ 21.016892] ? lnet_init+0x1df/0x1df:
ksocklnd_init at drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c:2885
[ 21.016892] ? lnet_selftest_exit+0x13e/0x13e:
lnet_selftest_init at drivers/staging/lustre/lnet/selftest/module.c:90
[ 21.016892] do_one_initcall+0x158/0x3ac:
do_one_initcall at init/main.c:883
[ 21.016892] ? start_kernel+0xbf5/0xbf5:
do_one_initcall at init/main.c:874
[ 21.016892] kernel_init_freeable+0x2b8/0x434:
do_initcall_level at init/main.c:951
(inlined by) do_initcalls at init/main.c:959
(inlined by) do_basic_setup at init/main.c:977
(inlined by) kernel_init_freeable at init/main.c:1127
[ 21.016892] ? rest_init+0x1d2/0x1d2:
kernel_init at init/main.c:1050
[ 21.016892] kernel_init+0x13/0x1ae:
kernel_init at init/main.c:1053
[ 21.016892] ? rest_init+0x1d2/0x1d2:
kernel_init at init/main.c:1050
[ 21.016892] ret_from_fork+0x24/0x30:
ret_from_fork at arch/x86/entry/entry_64.S:418
[ 21.016892] Code: d4 05 31 c0 5d c3 55 48 ff 05 2b bf d4 05 48 89 e5 41 55 41 54 4c 8d a7 a4 00 00 00 53 48 89 fb 41 89 f5 4c 89 e7 e8 16 a9 18 ff <66> 83 bb a4 00 00 00 02 76 24 48 c7 c6 20 37 75 85 48 c7 c7 40
[ 21.016892] RIP: cfs_trace_lock_tcd+0x25/0xeb:
cfs_trace_lock_tcd at drivers/staging/lustre/lnet/libcfs/linux/linux-tracefile.c:149 RSP: ffff880014c87380
[ 21.016892] CR2: 00000000000000a4
[ 21.016892] ---[ end trace be7ae81fe247d9ae ]---
[ 21.016892] Kernel panic - not syncing: Fatal exception
Attached the full dmesg, kconfig and reproduce scripts.
Thanks,
Fengguang
View attachment "dmesg-vm-lkp-hsw01-openwrt-ia32-7:20180417120909:x86_64-randconfig-ws0-03101549:4.17.0-rc1:1" of type "text/plain" (70714 bytes)
View attachment ".config" of type "text/plain" (122497 bytes)
View attachment "job-script" of type "text/plain" (4000 bytes)
View attachment "reproduce-vm-lkp-hsw01-openwrt-ia32-7:20180417120909:x86_64-randconfig-ws0-03101549:4.17.0-rc1:1" of type "text/plain" (1835 bytes)
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