* 5.10-rc1 xhci lockdep splat: pin_fs_lock vs xhci->lock HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
@ 2020-10-27 7:26 Mike Galbraith
0 siblings, 0 replies; only message in thread
From: Mike Galbraith @ 2020-10-27 7:26 UTC (permalink / raw)
To: LKML; +Cc: Mathias Nyman, linux-usb
FYI, $subject is followed by a might sleep splat. Box is an aging HP
Spectre X360 lappy.
[ 5.987129] =====================================================
[ 5.987133] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
[ 5.987138] 5.10.0.g3650b22-master #15 Tainted: G I E
[ 5.987141] -----------------------------------------------------
[ 5.987145] systemd-udevd/316 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
[ 5.987149] ffffffffb85ba0f8 (pin_fs_lock){+.+.}-{2:2}, at: simple_pin_fs+0x22/0xa0
[ 5.987161]
and this task is already holding:
[ 5.987164] ffff980789f4c430 (&xhci->lock){-.-.}-{2:2}, at: xhci_alloc_streams+0x592/0x880 [xhci_hcd]
[ 5.987181] which would create a new lock dependency:
[ 5.987184] (&xhci->lock){-.-.}-{2:2} -> (pin_fs_lock){+.+.}-{2:2}
[ 5.987191]
but this new dependency connects a HARDIRQ-irq-safe lock:
[ 5.987195] (&xhci->lock){-.-.}-{2:2}
[ 5.987197]
... which became HARDIRQ-irq-safe at:
[ 5.987206] lock_acquire+0x1a7/0x3b0
[ 5.987211] _raw_spin_lock_irqsave+0x3d/0x50
[ 5.987220] xhci_irq+0x3f/0x500 [xhci_hcd]
[ 5.987225] __handle_irq_event_percpu+0x4b/0x300
[ 5.987229] handle_irq_event_percpu+0x20/0x50
[ 5.987232] handle_irq_event+0x37/0x60
[ 5.987236] handle_edge_irq+0xaa/0x1d0
[ 5.987239] asm_call_irq_on_stack+0xf/0x20
[ 5.987243] common_interrupt+0x169/0x240
[ 5.987247] asm_common_interrupt+0x1e/0x40
[ 5.987251] native_queued_spin_lock_slowpath+0x6f/0x1f0
[ 5.987255] do_raw_spin_lock+0xb1/0xc0
[ 5.987259] dput+0x206/0x460
[ 5.987262] terminate_walk+0xfa/0x150
[ 5.987265] path_openat+0x29d/0xa60
[ 5.987268] do_filp_open+0x8c/0xf0
[ 5.987272] do_sys_openat2+0x1f8/0x2b0
[ 5.987275] do_sys_open+0x47/0x60
[ 5.987278] do_syscall_64+0x33/0x40
[ 5.987282] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 5.987285]
to a HARDIRQ-irq-unsafe lock:
[ 5.987288] (pin_fs_lock){+.+.}-{2:2}
[ 5.987290]
... which became HARDIRQ-irq-unsafe at:
[ 5.987296] ...
[ 5.987298] lock_acquire+0x1a7/0x3b0
[ 5.987303] _raw_spin_lock+0x2f/0x40
[ 5.987306] simple_pin_fs+0x22/0xa0
[ 5.987310] start_creating+0x57/0x180
[ 5.987313] debugfs_create_dir+0x15/0x140
[ 5.987318] em_debug_init+0x13/0x1d
[ 5.987322] do_one_initcall+0x54/0x2f0
[ 5.987327] kernel_init_freeable+0x26a/0x2ac
[ 5.987331] kernel_init+0xa/0x110
[ 5.987334] ret_from_fork+0x1f/0x30
[ 5.987337]
other info that might help us debug this:
[ 5.987341] Possible interrupt unsafe locking scenario:
[ 5.987345] CPU0 CPU1
[ 5.987348] ---- ----
[ 5.987351] lock(pin_fs_lock);
[ 5.987354] local_irq_disable();
[ 5.987357] lock(&xhci->lock);
[ 5.987362] lock(pin_fs_lock);
[ 5.987366] <Interrupt>
[ 5.987368] lock(&xhci->lock);
[ 5.987371]
*** DEADLOCK ***
[ 5.987375] 3 locks held by systemd-udevd/316:
[ 5.987378] #0: ffff98078a974218 (&dev->mutex){....}-{3:3}, at: __device_driver_lock+0x38/0x50
[ 5.987388] #1: ffff98078a9769a8 (&dev->mutex){....}-{3:3}, at: device_driver_attach+0x1d/0x60
[ 5.987396] #2: ffff980789f4c430 (&xhci->lock){-.-.}-{2:2}, at: xhci_alloc_streams+0x592/0x880 [xhci_hcd]
[ 5.987409]
the dependencies between HARDIRQ-irq-safe lock and the holding lock:
[ 5.987420] -> (&xhci->lock){-.-.}-{2:2} {
[ 5.987426] IN-HARDIRQ-W at:
[ 5.987430] lock_acquire+0x1a7/0x3b0
[ 5.987434] _raw_spin_lock_irqsave+0x3d/0x50
[ 5.987444] xhci_irq+0x3f/0x500 [xhci_hcd]
[ 5.987448] __handle_irq_event_percpu+0x4b/0x300
[ 5.987452] handle_irq_event_percpu+0x20/0x50
[ 5.987456] handle_irq_event+0x37/0x60
[ 5.987460] handle_edge_irq+0xaa/0x1d0
[ 5.987464] asm_call_irq_on_stack+0xf/0x20
[ 5.987468] common_interrupt+0x169/0x240
[ 5.987472] asm_common_interrupt+0x1e/0x40
[ 5.987477] native_queued_spin_lock_slowpath+0x6f/0x1f0
[ 5.987481] do_raw_spin_lock+0xb1/0xc0
[ 5.987485] dput+0x206/0x460
[ 5.987488] terminate_walk+0xfa/0x150
[ 5.987492] path_openat+0x29d/0xa60
[ 5.987496] do_filp_open+0x8c/0xf0
[ 5.987499] do_sys_openat2+0x1f8/0x2b0
[ 5.987503] do_sys_open+0x47/0x60
[ 5.987507] do_syscall_64+0x33/0x40
[ 5.987511] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 5.987515] IN-SOFTIRQ-W at:
[ 5.987519] lock_acquire+0x1a7/0x3b0
[ 5.987523] _raw_spin_lock_irqsave+0x3d/0x50
[ 5.987533] xhci_hub_status_data+0xc2/0x390 [xhci_hcd]
[ 5.987547] usb_hcd_poll_rh_status+0x41/0x180 [usbcore]
[ 5.987552] call_timer_fn+0x9d/0x2b0
[ 5.987556] run_timer_softirq+0x48d/0x570
[ 5.987560] __do_softirq+0xeb/0x4a4
[ 5.987563] asm_call_irq_on_stack+0xf/0x20
[ 5.987568] do_softirq_own_stack+0x81/0xa0
[ 5.987573] irq_exit_rcu+0xf6/0x100
[ 5.987577] sysvec_apic_timer_interrupt+0x57/0xf0
[ 5.987582] asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 5.987586] debug_lockdep_rcu_enabled+0x2b/0x30
[ 5.987592] dput+0x5f/0x460
[ 5.987597] path_openat+0x87b/0xa60
[ 5.987603] do_filp_open+0x8c/0xf0
[ 5.987609] do_sys_openat2+0x1f8/0x2b0
[ 5.987615] do_sys_open+0x47/0x60
[ 5.987620] do_syscall_64+0x33/0x40
[ 5.987628] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 5.987634] INITIAL USE at:
[ 5.987641] lock_acquire+0x1a7/0x3b0
[ 5.987648] _raw_spin_lock_irqsave+0x3d/0x50
[ 5.987665] xhci_hub_control+0xa5/0x2440 [xhci_hcd]
[ 5.987681] usb_hcd_submit_urb+0x743/0xb00 [usbcore]
[ 5.987701] usb_start_wait_urb+0x55/0x140 [usbcore]
[ 5.987712] usb_control_msg+0xc3/0x110 [usbcore]
[ 5.987721] hub_configure+0x103/0xc00 [usbcore]
[ 5.987730] hub_probe+0x29c/0x350 [usbcore]
[ 5.987740] usb_probe_interface+0x105/0x300 [usbcore]
[ 5.987745] really_probe+0xf7/0x4d0
[ 5.987749] driver_probe_device+0x5d/0x140
[ 5.987753] bus_for_each_drv+0x5e/0x90
[ 5.987757] __device_attach+0xbe/0x140
[ 5.987761] bus_probe_device+0x9c/0xb0
[ 5.987764] device_add+0x3fa/0x820
[ 5.987774] usb_set_configuration+0x469/0x960 [usbcore]
[ 5.987784] usb_generic_driver_probe+0x28/0x70 [usbcore]
[ 5.987794] usb_probe_device+0x3b/0xc0 [usbcore]
[ 5.987798] really_probe+0xf7/0x4d0
[ 5.987802] driver_probe_device+0x5d/0x140
[ 5.987806] bus_for_each_drv+0x5e/0x90
[ 5.987810] __device_attach+0xbe/0x140
[ 5.987814] bus_probe_device+0x9c/0xb0
[ 5.987817] device_add+0x3fa/0x820
[ 5.987826] usb_new_device+0x21d/0x4a0 [usbcore]
[ 5.987835] usb_add_hcd+0x60b/0x7f0 [usbcore]
[ 5.987845] usb_hcd_pci_probe+0x237/0x480 [usbcore]
[ 5.987850] xhci_pci_probe+0x6d/0x1df [xhci_pci]
[ 5.987855] local_pci_probe+0x42/0x90
[ 5.987859] pci_device_probe+0xe7/0x1a0
[ 5.987863] really_probe+0xf7/0x4d0
[ 5.987867] driver_probe_device+0x5d/0x140
[ 5.987872] device_driver_attach+0x4f/0x60
[ 5.987876] __driver_attach+0xa4/0x140
[ 5.987879] bus_for_each_dev+0x67/0x90
[ 5.987883] bus_add_driver+0x18c/0x230
[ 5.987887] driver_register+0x5b/0xf0
[ 5.987891] do_one_initcall+0x54/0x2f0
[ 5.987896] do_init_module+0x5b/0x21b
[ 5.987900] load_module+0x1e40/0x2370
[ 5.987904] __do_sys_finit_module+0x98/0xe0
[ 5.987908] do_syscall_64+0x33/0x40
[ 5.987912] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 5.987916] }
[ 5.987923] ... key at: [<ffffffffc06054e0>] __key.49448+0x0/0xfffffffffffe5b20 [xhci_hcd]
[ 5.987927] ... acquired at:
[ 5.987930] lock_acquire+0x1a7/0x3b0
[ 5.987934] _raw_spin_lock+0x2f/0x40
[ 5.987938] simple_pin_fs+0x22/0xa0
[ 5.987941] start_creating+0x57/0x180
[ 5.987944] __debugfs_create_file+0x3c/0x160
[ 5.987954] xhci_debugfs_create_stream_files+0x6a/0x90 [xhci_hcd]
[ 5.987962] xhci_alloc_streams+0x5fb/0x880 [xhci_hcd]
[ 5.987971] usb_alloc_streams+0xc2/0x120 [usbcore]
[ 5.987976] uas_configure_endpoints+0x124/0x150 [uas]
[ 5.987981] uas_probe+0x44d/0x5f6 [uas]
[ 5.987990] usb_probe_interface+0x105/0x300 [usbcore]
[ 5.987994] really_probe+0xf7/0x4d0
[ 5.987998] driver_probe_device+0x5d/0x140
[ 5.988003] device_driver_attach+0x4f/0x60
[ 5.988008] __driver_attach+0xa4/0x140
[ 5.988013] bus_for_each_dev+0x67/0x90
[ 5.988018] bus_add_driver+0x18c/0x230
[ 5.988023] driver_register+0x5b/0xf0
[ 5.988032] usb_register_driver+0xb1/0x170 [usbcore]
[ 5.988036] uas_init+0x46/0x1000 [uas]
[ 5.988040] do_one_initcall+0x54/0x2f0
[ 5.988043] do_init_module+0x5b/0x21b
[ 5.988046] load_module+0x1e40/0x2370
[ 5.988050] __do_sys_finit_module+0x98/0xe0
[ 5.988053] do_syscall_64+0x33/0x40
[ 5.988057] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 5.988062]
the dependencies between the lock to be acquired
[ 5.988062] and HARDIRQ-irq-unsafe lock:
[ 5.988074] -> (pin_fs_lock){+.+.}-{2:2} {
[ 5.988080] HARDIRQ-ON-W at:
[ 5.988084] lock_acquire+0x1a7/0x3b0
[ 5.988088] _raw_spin_lock+0x2f/0x40
[ 5.988092] simple_pin_fs+0x22/0xa0
[ 5.988096] start_creating+0x57/0x180
[ 5.988099] debugfs_create_dir+0x15/0x140
[ 5.988104] em_debug_init+0x13/0x1d
[ 5.988108] do_one_initcall+0x54/0x2f0
[ 5.988113] kernel_init_freeable+0x26a/0x2ac
[ 5.988117] kernel_init+0xa/0x110
[ 5.988121] ret_from_fork+0x1f/0x30
[ 5.988124] SOFTIRQ-ON-W at:
[ 5.988128] lock_acquire+0x1a7/0x3b0
[ 5.988132] _raw_spin_lock+0x2f/0x40
[ 5.988136] simple_pin_fs+0x22/0xa0
[ 5.988139] start_creating+0x57/0x180
[ 5.988143] debugfs_create_dir+0x15/0x140
[ 5.988147] em_debug_init+0x13/0x1d
[ 5.988151] do_one_initcall+0x54/0x2f0
[ 5.988155] kernel_init_freeable+0x26a/0x2ac
[ 5.988159] kernel_init+0xa/0x110
[ 5.988163] ret_from_fork+0x1f/0x30
[ 5.988166] INITIAL USE at:
[ 5.988170] lock_acquire+0x1a7/0x3b0
[ 5.988174] _raw_spin_lock+0x2f/0x40
[ 5.988178] simple_pin_fs+0x22/0xa0
[ 5.988181] start_creating+0x57/0x180
[ 5.988185] debugfs_create_dir+0x15/0x140
[ 5.988189] em_debug_init+0x13/0x1d
[ 5.988193] do_one_initcall+0x54/0x2f0
[ 5.988197] kernel_init_freeable+0x26a/0x2ac
[ 5.988201] kernel_init+0xa/0x110
[ 5.988205] ret_from_fork+0x1f/0x30
[ 5.988208] }
[ 5.988211] ... key at: [<ffffffffb85ba0f8>] pin_fs_lock+0x18/0x40
[ 5.988215] ... acquired at:
[ 5.988218] lock_acquire+0x1a7/0x3b0
[ 5.988222] _raw_spin_lock+0x2f/0x40
[ 5.988225] simple_pin_fs+0x22/0xa0
[ 5.988228] start_creating+0x57/0x180
[ 5.988231] __debugfs_create_file+0x3c/0x160
[ 5.988241] xhci_debugfs_create_stream_files+0x6a/0x90 [xhci_hcd]
[ 5.988249] xhci_alloc_streams+0x5fb/0x880 [xhci_hcd]
[ 5.988258] usb_alloc_streams+0xc2/0x120 [usbcore]
[ 5.988262] uas_configure_endpoints+0x124/0x150 [uas]
[ 5.988267] uas_probe+0x44d/0x5f6 [uas]
[ 5.988276] usb_probe_interface+0x105/0x300 [usbcore]
[ 5.988280] really_probe+0xf7/0x4d0
[ 5.988283] driver_probe_device+0x5d/0x140
[ 5.988287] device_driver_attach+0x4f/0x60
[ 5.988290] __driver_attach+0xa4/0x140
[ 5.988294] bus_for_each_dev+0x67/0x90
[ 5.988297] bus_add_driver+0x18c/0x230
[ 5.988301] driver_register+0x5b/0xf0
[ 5.988310] usb_register_driver+0xb1/0x170 [usbcore]
[ 5.988314] uas_init+0x46/0x1000 [uas]
[ 5.988317] do_one_initcall+0x54/0x2f0
[ 5.988321] do_init_module+0x5b/0x21b
[ 5.988324] load_module+0x1e40/0x2370
[ 5.988327] __do_sys_finit_module+0x98/0xe0
[ 5.988330] do_syscall_64+0x33/0x40
[ 5.988334] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 5.988339]
stack backtrace:
[ 5.988343] CPU: 0 PID: 316 Comm: systemd-udevd Tainted: G I E 5.10.0.g3650b22-master #15
[ 5.988348] Hardware name: HP HP Spectre x360 Convertible/804F, BIOS F.47 11/22/2017
[ 5.988352] Call Trace:
[ 5.988357] dump_stack+0x77/0x97
[ 5.988362] check_irq_usage+0x7a8/0x7b0
[ 5.988367] ? check_path.constprop.54+0x22/0x40
[ 5.988373] ? __lock_acquire+0x14af/0x1a70
[ 5.988377] __lock_acquire+0x14af/0x1a70
[ 5.988383] lock_acquire+0x1a7/0x3b0
[ 5.988386] ? simple_pin_fs+0x22/0xa0
[ 5.988392] _raw_spin_lock+0x2f/0x40
[ 5.988395] ? simple_pin_fs+0x22/0xa0
[ 5.988398] simple_pin_fs+0x22/0xa0
[ 5.988402] start_creating+0x57/0x180
[ 5.988406] __debugfs_create_file+0x3c/0x160
[ 5.988416] xhci_debugfs_create_stream_files+0x6a/0x90 [xhci_hcd]
[ 5.988425] xhci_alloc_streams+0x5fb/0x880 [xhci_hcd]
[ 5.988433] ? xhci_free_streams+0x390/0x390 [xhci_hcd]
[ 5.988443] usb_alloc_streams+0xc2/0x120 [usbcore]
[ 5.988448] uas_configure_endpoints+0x124/0x150 [uas]
[ 5.988453] uas_probe+0x44d/0x5f6 [uas]
[ 5.988464] usb_probe_interface+0x105/0x300 [usbcore]
[ 5.988470] really_probe+0xf7/0x4d0
[ 5.988474] driver_probe_device+0x5d/0x140
[ 5.988478] device_driver_attach+0x4f/0x60
[ 5.988482] __driver_attach+0xa4/0x140
[ 5.988486] ? device_driver_attach+0x60/0x60
[ 5.988490] bus_for_each_dev+0x67/0x90
[ 5.988494] ? preempt_count_sub+0x9b/0xd0
[ 5.988498] bus_add_driver+0x18c/0x230
[ 5.988502] driver_register+0x5b/0xf0
[ 5.988511] usb_register_driver+0xb1/0x170 [usbcore]
[ 5.988516] ? 0xffffffffc03d1000
[ 5.988520] uas_init+0x46/0x1000 [uas]
[ 5.988523] do_one_initcall+0x54/0x2f0
[ 5.988528] ? kmem_cache_alloc_trace+0x5d5/0x7d0
[ 5.988533] do_init_module+0x5b/0x21b
[ 5.988536] load_module+0x1e40/0x2370
[ 5.988544] ? __do_sys_finit_module+0x98/0xe0
[ 5.988547] __do_sys_finit_module+0x98/0xe0
[ 5.988553] do_syscall_64+0x33/0x40
[ 5.988557] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 5.988561] RIP: 0033:0x7f793ca6b839
[ 5.988566] Code: 00 48 81 c4 80 00 00 00 89 f0 c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2f d6 2b 00 f7 d8 64 89 01 48
[ 5.988574] RSP: 002b:00007ffe91014848 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 5.988579] RAX: ffffffffffffffda RBX: 000055611701cd10 RCX: 00007f793ca6b839
[ 5.988583] RDX: 0000000000000000 RSI: 00007f793d3a687d RDI: 000000000000000e
[ 5.988587] RBP: 00007f793d3a687d R08: 0000000000000000 R09: 0000000000000000
[ 5.988591] R10: 000000000000000e R11: 0000000000000246 R12: 0000000000020000
[ 5.988595] R13: 000055611700d820 R14: 0000000000000000 R15: 0000000003938700
[ 5.988603] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1530
[ 5.988608] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 316, name: systemd-udevd
[ 5.988612] INFO: lockdep is turned off.
[ 5.988615] irq event stamp: 59514
[ 5.988618] hardirqs last enabled at (59513): [<ffffffffb79bfee4>] _raw_spin_unlock_irq+0x24/0x50
[ 5.988624] hardirqs last disabled at (59514): [<ffffffffb79bfcc7>] _raw_spin_lock_irqsave+0x17/0x50
[ 5.988629] softirqs last enabled at (58022): [<ffffffffb7c002d7>] __do_softirq+0x2d7/0x4a4
[ 5.988634] softirqs last disabled at (57585): [<ffffffffb7a00fdf>] asm_call_irq_on_stack+0xf/0x20
[ 5.988639] Preemption disabled at:
[ 5.988640] [<0000000000000000>] 0x0
[ 5.988645] CPU: 0 PID: 316 Comm: systemd-udevd Tainted: G I E 5.10.0.g3650b22-master #15
[ 5.988650] Hardware name: HP HP Spectre x360 Convertible/804F, BIOS F.47 11/22/2017
[ 5.988654] Call Trace:
[ 5.988658] dump_stack+0x77/0x97
[ 5.988662] ___might_sleep+0x17d/0x260
[ 5.988666] down_write+0x1c/0x70
[ 5.988669] start_creating+0x7b/0x180
[ 5.988673] __debugfs_create_file+0x3c/0x160
[ 5.988684] xhci_debugfs_create_stream_files+0x6a/0x90 [xhci_hcd]
[ 5.988692] xhci_alloc_streams+0x5fb/0x880 [xhci_hcd]
[ 5.988700] ? xhci_free_streams+0x390/0x390 [xhci_hcd]
[ 5.988710] usb_alloc_streams+0xc2/0x120 [usbcore]
[ 5.988715] uas_configure_endpoints+0x124/0x150 [uas]
[ 5.988721] uas_probe+0x44d/0x5f6 [uas]
[ 5.988731] usb_probe_interface+0x105/0x300 [usbcore]
[ 5.988736] really_probe+0xf7/0x4d0
[ 5.988741] driver_probe_device+0x5d/0x140
[ 5.988745] device_driver_attach+0x4f/0x60
[ 5.988749] __driver_attach+0xa4/0x140
[ 5.988753] ? device_driver_attach+0x60/0x60
[ 5.988756] bus_for_each_dev+0x67/0x90
[ 5.988760] ? preempt_count_sub+0x9b/0xd0
[ 5.988764] bus_add_driver+0x18c/0x230
[ 5.988768] driver_register+0x5b/0xf0
[ 5.988777] usb_register_driver+0xb1/0x170 [usbcore]
[ 5.988781] ? 0xffffffffc03d1000
[ 5.988785] uas_init+0x46/0x1000 [uas]
[ 5.988788] do_one_initcall+0x54/0x2f0
[ 5.988792] ? kmem_cache_alloc_trace+0x5d5/0x7d0
[ 5.988797] do_init_module+0x5b/0x21b
[ 5.988801] load_module+0x1e40/0x2370
[ 5.988808] ? __do_sys_finit_module+0x98/0xe0
[ 5.988811] __do_sys_finit_module+0x98/0xe0
[ 5.988817] do_syscall_64+0x33/0x40
[ 5.988821] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 5.988825] RIP: 0033:0x7f793ca6b839
[ 5.988828] Code: 00 48 81 c4 80 00 00 00 89 f0 c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2f d6 2b 00 f7 d8 64 89 01 48
[ 5.988836] RSP: 002b:00007ffe91014848 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 5.988841] RAX: ffffffffffffffda RBX: 000055611701cd10 RCX: 00007f793ca6b839
[ 5.988845] RDX: 0000000000000000 RSI: 00007f793d3a687d RDI: 000000000000000e
[ 5.988849] RBP: 00007f793d3a687d R08: 0000000000000000 R09: 0000000000000000
[ 5.988853] R10: 000000000000000e R11: 0000000000000246 R12: 0000000000020000
[ 5.988857] R13: 000055611700d820 R14: 0000000000000000 R15: 0000000003938700
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2020-10-27 7:27 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-10-27 7:26 5.10-rc1 xhci lockdep splat: pin_fs_lock vs xhci->lock HARDIRQ-safe -> HARDIRQ-unsafe lock order detected Mike Galbraith
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.