Re: [regression] fsstress hung since 5.14-rc5-smb3-fixes

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On Mon, Sep 06, 2021 at 09:34:21PM +0530, Rohith Surabattula wrote:
> I ran generic/051 and generic/461, but couldn't repro the issue.
> 
> lxsmbadmin@lxsmbidcdeferred:~/xfstests-dev$ sudo smbstatus --version
> Version 4.13.3-Ubuntu
> lxsmbadmin@lxsmbidcdeferred:~/xfstests-dev$ uname -r
> 5.14.0-051400rc4-generic
> 
> lxsmbadmin@lxsmbidcdeferred:~/xfstests-dev$ sudo ./check generic/051
> SECTION       -- smb3
> FSTYP         -- cifs
> PLATFORM      -- Linux/x86_64 lxsmbidcdeferred
> 5.14.0-051400rc4-generic #202108012130 SMP Mon Aug 2 01:33:46 UTC 2021
> MKFS_OPTIONS  -- //127.0.0.1/sambasharescratch
> MOUNT_OPTIONS -- -ousername=lxsmbadmin,password=xxxx,mfsymlinks,sfu
> //127.0.0.1/sambasharescratch /mnt/xfstests_scratch
> 
> generic/051 71s ...  70s
> Ran: generic/051
> Passed all 1 tests
> 
> SECTION       -- smb3
> =========================
> Ran: generic/051
> Passed all 1 tests
> 
> lxsmbadmin@lxsmbidcdeferred:~/xfstests-dev$ sudo ./check generic/461
> SECTION       -- smb3
> FSTYP         -- cifs
> PLATFORM      -- Linux/x86_64 lxsmbidcdeferred
> 5.14.0-051400rc4-generic #202108012130 SMP Mon Aug 2 01:33:46 UTC 2021
> MKFS_OPTIONS  -- //127.0.0.1/sambasharescratch
> MOUNT_OPTIONS -- -ousername=lxsmbadmin,password=xxxx,mfsymlinks,sfu
> //127.0.0.1/sambasharescratch /mnt/xfstests_scratch
> 
> generic/461      21s
> Ran: generic/461
> Passed all 1 tests
> 
> SECTION       -- smb3
> =========================
> Ran: generic/461
> Passed all 1 tests
> 
> Can you please share the mount options.


 vers=3.11,mfsymlinks,username=root,password=xx

> 
> Regards,
> Rohith
> 
> On Mon, Sep 6, 2021 at 11:14 AM Murphy Zhou <jencce.kernel@xxxxxxxxx> wrote:
> >
> > Hi,
> >
> > Since this commit:
> >
> > commit 9e992755be8f2d458a0bcbefd19e493483c1dba2
> > Author: Rohith Surabattula <rohiths@xxxxxxxxxxxxx>
> > Date:   Mon Aug 9 09:32:46 2021 +0000
> >
> >     cifs: Call close synchronously during unlink/rename/lease break.
> >
> >
> > CIFS can't finish a basic fsstress testcase. The kernel is soft locked up and
> > never returns. You can't stop these IO process but restarting the server.
> > For example, xfstests generic/051. The server is samba-4.14 and it's always
> > reproducible. See call traces in the end of this email.
> >
> > Reverting this commit can fix this.
> >
> > Other xfstest fsstress testcase like generic/461 can also hit this issue.
> >
> >
> > Thanks,
> > Murphy
> >
> >
> > ---
> > Soft lock up call trace from fsstress test:
> >
> > [  130.698396] watchdog: BUG: soft lockup - CPU#6 stuck for 26s! [xfs_fsr:6618]
> > [  130.705489] Modules linked in: nls_utf8 cifs cifs_arc4 rdma_cm iw_cm ib_cm ib_core cifs_md4 dns_resolver fscache netfs rfkill intel_rapl_msr intel_rapl_common sunrpc isst_if_common nfit x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm ipmi_ssif mgag200 i2c_algo_bit drm_kms_helper irqbypass acpi_ipmi syscopyarea sysfillrect ipmi_si rapl ses sysimgblt intel_cstate fb_sys_fops enclosure intel_uncore cec ipmi_devintf mei_me mei acpi_tad ipmi_msghandler pcspkr lpc_ich ioatdma hpilo acpi_power_meter dca drm fuse xfs libcrc32c sd_mod t10_pi sg crct10dif_pclmul uas crc32_pclmul crc32c_intel smartpqi serio_raw usb_storage tg3 ghash_clmulni_intel scsi_transport_sas hpwdt wmi
> > [  130.765809] CPU: 6 PID: 6618 Comm: xfs_fsr Kdump: loaded Tainted: G          I       5.14.0-master-27151f177827+ #32
> > [  130.776391] Hardware name: HPE ProLiant DL388 Gen10/ProLiant DL388 Gen10, BIOS U30 04/18/2019
> > [  130.784960] RIP: 0010:native_queued_spin_lock_slowpath.part.0+0x44/0x190
> > [  130.791706] Code: 2a 08 0f 92 c1 8b 02 0f b6 c9 c1 e1 08 30 e4 09 c8 a9 00 01 ff ff 0f 85 ed 00 00 00 85 c0 74 0e 8b 02 84 c0 74 08 f3 90 8b 02 <84> c0 75 f8 b8 01 00 00 00 66 89 02 c3 8b 37 b8 00 02 00 00 81 fe
> > [  130.795394] watchdog: BUG: soft lockup - CPU#22 stuck for 26s! [cifsd:6084]
> > [  130.810583] RSP: 0018:ffffaedb4abcbb88 EFLAGS: 00000202
> > [  130.817582] Modules linked in:
> > [  130.817582]
> > [  130.817583] RAX: 0000000000000101 RBX: ffffa016a569fec0 RCX: 0000000000000000
> > [  130.822833]  nls_utf8
> > [  130.825902] RDX: ffffffffc0deb2b4 RSI: 0000000000000000 RDI: ffffffffc0deb2b4
> > [  130.827396]  cifs
> > [  130.834569] RBP: ffffa01dc2a8c000 R08: 0000000000000001 R09: 0000000000000064
> > [  130.836851]  cifs_arc4
> > [  130.844023] R10: ffffa016a569fec0 R11: 0000000074736574 R12: ffffa016a569fec0
> > [  130.845956]  rdma_cm
> > [  130.853129] R13: ffffaedb4abcbcf0 R14: ffffaedb4abcbc6c R15: 0000000000000000
> > [  130.855497]  iw_cm
> > [  130.862669] FS:  00007fa1ece9d740(0000) GS:ffffa01d9fd80000(0000) knlGS:0000000000000000
> > [  130.864861]  ib_cm
> > [  130.872034] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > [  130.874053]  ib_core
> > [  130.882186] CR2: 00007ffc4ea8bf40 CR3: 000000015448c002 CR4: 00000000007706e0
> > [  130.884205]  cifs_md4
> > [  130.889980] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [  130.892172]  dns_resolver
> > [  130.899346] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> > [  130.901628]  fscache
> > [  130.908801] PKRU: 55555554
> > [  130.911432]  netfs
> > [  130.918604] Call Trace:
> > [  130.920796]  rfkill
> > [  130.923515]  _raw_spin_lock+0x1a/0x20
> > [  130.925533]  intel_rapl_msr
> > [  130.927989]  _get_xid+0x11/0xa0 [cifs]
> > [  130.930093]  intel_rapl_common
> > [  130.933773]  cifs_revalidate_dentry_attr+0x70/0x360 [cifs]
> > [  130.936577]  sunrpc
> > [  130.940344]  cifs_revalidate_dentry+0xf/0x20 [cifs]
> > [  130.943408]  isst_if_common
> > [  130.948922]  cifs_d_revalidate+0x51/0x150 [cifs]
> > [  130.951028]  nfit
> > [  130.955931]  lookup_fast+0xd2/0x160
> > [  130.958735]  x86_pkg_temp_thermal
> > [  130.963376]  walk_component+0x41/0x1d0
> > [  130.965308]  intel_powerclamp
> > [  130.968813]  path_lookupat+0x6e/0x1b0
> > [  130.972141]  coretemp kvm_intel
> > [  130.975908]  __filename_lookup+0xcf/0x1d0
> > [  130.978887]  kvm
> > [  130.982566]  ? path_openat+0x21d/0x2b0
> > [  130.985721]  ipmi_ssif
> > [  130.989749]  ? __virt_addr_valid+0x45/0x70
> > [  130.991593]  mgag200
> > [  130.995360]  ? __check_object_size.part.0+0x11f/0x140
> > [  130.997729]  i2c_algo_bit
> > [  131.001843]  user_path_at_empty+0x3a/0x60
> > [  131.004036]  drm_kms_helper
> > [  13[  158.698098] watchdog: BUG: soft lockup - CPU#6 stuck for 52s! [xfs_fsr:6618]
> > [  158.705188] Modules linked in: nls_utf8 cifs cifs_arc4 rdma_cm iw_cm ib_cm ib_core cifs_md4 dns_resolver fscache netfs rfkill intel_rapl_msr intel_rapl_common sunrpc isst_if_common nfit x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm ipmi_ssif mgag200 i2c_algo_bit drm_kms_helper irqbypass acpi_ipmi syscopyarea sysfillrect ipmi_si rapl ses sysimgblt intel_cstate fb_sys_fops enclosure intel_uncore cec ipmi_devintf mei_me mei acpi_tad ipmi_msghandler pcspkr lpc_ich ioatdma hpilo acpi_power_meter dca drm fuse xfs libcrc32c sd_mod t10_pi sg crct10dif_pclmul uas crc32_pclmul crc32c_intel smartpqi serio_raw usb_storage tg3 ghash_clmulni_intel scsi_transport_sas hpwdt wmi
> > [  158.765499] CPU: 6 PID: 6618 Comm: xfs_fsr Kdump: loaded Tainted: G          I  L    5.14.0-master-27151f177827+ #32
> > [  158.776079] Hardware name: HPE ProLiant DL388 Gen10/ProLiant DL388 Gen10, BIOS U30 04/18/2019
> > [  158.784648] RIP: 0010:native_queued_spin_lock_slowpath.part.0+0x42/0x190
> > [  158.791390] Code: 0f ba 2a 08 0f 92 c1 8b 02 0f b6 c9 c1 e1 08 30 e4 09 c8 a9 00 01 ff ff 0f 85 ed 00 00 00 85 c0 74 0e 8b 02 84 c0 74 08 f3 90 <8b> 02 84 c0 75 f8 b8 01 00 00 00 66 89 02 c3 8b 37 b8 00 02 00 00
> > [  158.795096] watchdog: BUG: soft lockup - CPU#22 stuck for 52s! [cifsd:6084]
> > [  158.810268] RSP: 0018:ffffaedb4abcbb88 EFLAGS: 00000202
> > [  158.817266] Modules linked in: nls_utf8
> > [  158.822517]
> > [  158.822518] RAX: 0000000000000101 RBX: ffffa016a569fec0 RCX: 0000000000000000
> > [  158.826369]  cifs
> > [  158.827864] RDX: ffffffffc0deb2b4 RSI: 0000000000000000 RDI: ffffffffc0deb2b4
> > [  158.835036]  cifs_arc4
> > [  158.836969] RBP: ffffa01dc2a8c000 R08: 0000000000000001 R09: 0000000000000064
> > [  158.844140]  rdma_cm
> > [  158.846508] R10: ffffa016a569fec0 R11: 0000000074736574 R12: ffffa016a569fec0
> > [  158.853680]  iw_cm
> > [  158.855873] R13: ffffaedb4abcbcf0 R14: ffffaedb4abcbc6c R15: 0000000000000000
> > [  158.863046]  ib_cm
> > [  158.865064] FS:  00007fa1ece9d740(0000) GS:ffffa01d9fd80000(0000) knlGS:0000000000000000
> > [  158.872237]  ib_core
> > [  158.874255] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > [  158.882388]  cifs_md4
> > [  158.884581] CR2: 00007ffc4ea8bf40 CR3: 000000015448c002 CR4: 00000000007706e0
> > [  158.890357]  dns_resolver
> > [  158.892639] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [  158.899812]  fscache
> > [  158.902443] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> > [  158.909615]  netfs
> > [  158.911808] PKRU: 55555554
> > [  158.918982]  rfkill
> > [  158.921000] Call Trace:
> > [  158.923718]  intel_rapl_msr
> > [  158.925824]  _raw_spin_lock+0x1a/0x20
> > [  158.928279]  intel_rapl_common
> > [  158.931084]  _get_xid+0x11/0xa0 [cifs]
> > [  158.934763]  sunrpc isst_if_common
> > [  158.937831]  cifs_revalidate_dentry_attr+0x70/0x360 [cifs]
> > [  158.941597]  nfit
> > [  158.945015]  cifs_revalidate_dentry+0xf/0x20 [cifs]
> > [  158.950527]  x86_pkg_temp_thermal
> > [  158.952460]  cifs_d_revalidate+0x51/0x150 [cifs]
> > [  158.957361]  intel_powerclamp
> > [  158.960691]  lookup_fast+0xd2/0x160
> > [  158.965329]  coretemp
> > [  158.968310]  walk_component+0x41/0x1d0
> > [  158.971813]  kvm_intel
> > [  158.974096]  path_lookupat+0x6e/0x1b0
> > [  158.977861]  kvm
> > [  158.980231]  __filename_lookup+0xcf/0x1d0
> > [  158.983908]  ipmi_ssif
> > [  158.985754]  ? path_openat+0x21d/0x2b0
> > [  158.989780]  mgag200
> > [  158.992149]  ? __virt_addr_valid+0x45/0x70
> > [  158.995914]  i2c_algo_bit
> > [  158.998109]  ? __check_object_size.part.0+0x11f/0x140
> > [  159.002223]  drm_kms_helper
> > [  159.004855]  user_path_at_empty+0x3a/0x60
> > [  159.009930]  irqbypass
> > [  159.012736]  vfs_statx+0x74/0x130
> > [  159.016762]  acpi_ipmi
> > [  159.019131]  ? rcu_nocb_try_bypass+0x4a/0x3f0
> > [  159.022461]  syscopyarea
> > [  159.024831]  __do_sys_newfstatat+0x31/0x70
> > [  159.029209]  sysfillrect
> > [  159.031752]  ? syscall_trace_enter.constprop.0+0x13d/0x1b0
> > [  159.035867]  ipmi_si
> > [  159.038412]  do_syscall_64+0x38/0x90
> > [  159.043925]  rapl
> > [  159.046120]  entry_SYSCALL_64_after_hwframe+0x44/0xae
> > [  159.049711]  ses
> > [  159.051644] RIP: 0033:0x7fa1ecfa0dee
> > [  159.056719]  sysimgblt
> > [  159.058565] Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 07 00 00 00 0f 1f 80 00 00 00 00 f3 0f 1e fa 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 0b 31 c0 c3 0f 1f 84 00 00 00 00 00 48 8b 15 01
> > [  159.062157]  intel_cstate
> > [  159.064527] RSP: 002b:00007ffc4ea8dfc8 EFLAGS: 00000202
> > [  159.083404]  fb_sys_fops
> > [  159.086036]  ORIG_RAX: 0000000000000106
> > [  159.091286]  enclosure
> > [  159.093828] RAX: ffffffffffffffda RBX: 00007ffc4ea8e728 RCX: 00007fa1ecfa0dee
> > [  159.097682]  intel_uncore
> > [  159.100051] RDX: 00007ffc4ea8e070 RSI: 00007ffc4ea903e9 RDI: 00000000ffffff9c
> > [  159.107224]  cec
> > [  159.109854] RBP: 0000000000000003 R08: 00000000018f12f0 R09: 0000000000000001
> > [  159.117026]  ipmi_devintf
> > [  159.118871] R10: 0000000000000100 R11: 0000000000000202 R12: 00007ffc4ea903e9
> > [  159.126043]  mei_me
> > [  159.128675] R13: 00007ffc4ea8e070 R14: 00007fa1ed11cc00 R15: 000000000040ce08
> > [  159.135847]  mei acpi_tad ipmi_msghandler pcspkr lpc_ich ioatdma hpilo acpi_power_meter dca drm fuse xfs libcrc32c sd_mod t10_pi sg crct10dif_pclmul uas crc32_pclmul crc32c_intel smartpqi serio_raw usb_storage tg3 ghash_clmulni_intel scsi_transport_sas hpwdt wmi
> > [  159.168470] CPU: 22 PID: 6084 Comm: cifsd Kdump: loaded Tainted: G          I  L    5.14.0-master-27151f177827+ #32
> > [  159.178963] Hardware name: HPE ProLiant DL388 Gen10/ProLiant DL388 Gen10, BIOS U30 04/18/2019
> > [  159.187532] RIP: 0010:native_queued_spin_lock_slowpath.part.0+0x42/0x190
> > [  159.194272] Code: 0f ba 2a 08 0f 92 c1 8b 02 0f b6 c9 c1 e1 08 30 e4 09 c8 a9 00 01 ff ff 0f 85 ed 00 00 00 85 c0 74 0e 8b 02 84 c0 74 08 f3 90 <8b> 02 84 c0 75 f8 b8 01 00 00 00 66 89 02 c3 8b 37 b8 00 02 00 00
> > [  159.213149] RSP: 0018:ffffaedb47e5fd48 EFLAGS: 00000202
> > [  159.218401] RAX: 0000000000000101 RBX: ffffffffc0deb2c4 RCX: 0000000000000000
> > [  159.225573] RDX: ffffffffc0deb2c4 RSI: 0000000000000000 RDI: ffffffffc0deb2c4
> > [  159.232746] RBP: ffffa01732f27800 R08: ffffa01732f27800 R09: ffffaedb47e5fd08
> > [  159.239919] R10: ffffa016888a0000 R11: ffffffffa0c060e0 R12: ffffa01dcaca0000
> > [  159.247092] R13: ffffaedb47e5feb0 R14: ffffa016b8c4cf00 R15: ffffa01dcaca0000
> > [  159.254264] FS:  0000000000000000(0000) GS:ffffa01d9ff00000(0000) knlGS:0000000000000000
> > [  159.262399] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > [  159.268175] CR2: 0000560f1678c958 CR3: 0000000ae1e10003 CR4: 00000000007706e0
> > [  159.275348] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [  159.282520] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> > [  159.289693] PKRU: 55555554
> > [  159.292412] Call Trace:
> > [  159.294867]  _raw_spin_lock+0x1a/0x20
> > [  159.298548]  cifs_put_smb_ses+0x37/0x3b0 [cifs]
> > [  159.303130]  smb2_find_smb_tcon+0x8a/0xd0 [cifs]
> > [  159.307803]  smb2_handle_cancelled_mid+0x3e/0x90 [cifs]
> > [  159.313087]  _cifs_mid_q_entry_release+0x83/0xb0 [cifs]
> > [  159.318367]  cifs_mid_q_entry_release+0x41/0x50 [cifs]
> > [  159.323560]  cifs_demultiplex_thread+0x2f5/0x7a0 [cifs]
> > [  159.328838]  ? cifs_handle_standard+0x190/0x190 [cifs]
> > [  159.334027]  kthread+0x10c/0x130
> > [  159.337271]  ? set_kthread_struct+0x40/0x40
> > [  159.341475]  ret_from_fork+0x1f/0x30
> > [  163.490051] rcu: INFO: rcu_sched self-detected stall on CPU
> > [  163.495654] rcu:     22-....: (58901 ticks this GP) idle=335/1/0x4000000000000000 softirq=2462/2462 fqs=15001
> > [  163.505451]  (t=60016 jiffies g=19949 q=792)
> > [  163.509744] NMI backtrace for cpu 22
> > [  163.513336] CPU: 22 PID: 6084 Comm: cifsd Kdump: loaded Tainted: G          I  L    5.14.0-master-27151f177827+ #32
> > [  163.523829] Hardware name: HPE ProLiant DL388 Gen10/ProLiant DL388 Gen10, BIOS U30 04/18/2019
> > [  163.532399] Call Trace:
> > [  163.534857]  <IRQ>
> > [  163.536877]  dump_stack_lvl+0x34/0x44
> > [  163.540562]  nmi_cpu_backtrace.cold+0x30/0x6f
> > [  163.544941]  ? lapic_can_unplug_cpu+0x80/0x80
> > [  163.549321]  nmi_trigger_cpumask_backtrace+0xd2/0xe0
> > [  163.554316]  trigger_single_cpu_backtrace+0x2a/0x2d
> > [  163.559224]  rcu_dump_cpu_stacks+0xaa/0xe3
> > [  163.563341]  print_cpu_stall.cold+0x2f/0xd2
> > [  163.567546]  check_cpu_stall+0xe9/0x240
> > [  163.571403]  rcu_pending+0x26/0x130
> > [  163.574909]  rcu_sched_clock_irq+0x43/0x100
> > [  163.579114]  update_process_times+0x8c/0xc0
> > [  163.583319]  tick_sched_handle+0x22/0x60
> > [  163.587265]  tick_sched_timer+0x61/0x70
> > [  163.591122]  ? tick_sched_do_timer+0x50/0x50
> > [  163.595415]  __hrtimer_run_queues+0x127/0x270
> > [  163.599796]  hrtimer_interrupt+0xfc/0x210
> > [  163.603825]  __sysvec_apic_timer_interrupt+0x59/0xd0
> > [  163.608820]  sysvec_apic_timer_interrupt+0x6d/0x90
> > [  163.613637]  </IRQ>
> > [  163.615742]  asm_sysvec_apic_timer_interrupt+0x12/0x20
> > [  163.620907] RIP: 0010:native_queued_spin_lock_slowpath.part.0+0x42/0x190
> > [  163.627646] Code: 0f ba 2a 08 0f 92 c1 8b 02 0f b6 c9 c1 e1 08 30 e4 09 c8 a9 00 01 ff ff 0f 85 ed 00 00 00 85 c0 74 0e 8b 02 84 c0 74 08 f3 90 <8b> 02 84 c0 75 f8 b8 01 00 00 00 66 89 02 c3 8b 37 b8 00 02 00 00
> > [  163.646525] RSP: 0018:ffffaedb47e5fd48 EFLAGS: 00000202
> > [  163.651779] RAX: 0000000000000101 RBX: ffffffffc0deb2c4 RCX: 0000000000000000
> > [  163.658952] RDX: ffffffffc0deb2c4 RSI: 0000000000000000 RDI: ffffffffc0deb2c4
> > [  163.666125] RBP: ffffa01732f27800 R08: ffffa01732f27800 R09: ffffaedb47e5fd08
> > [  163.673299] R10: ffffa016888a0000 R11: ffffffffa0c060e0 R12: ffffa01dcaca0000
> > [  163.680471] R13: ffffaedb47e5feb0 R14: ffffa016b8c4cf00 R15: ffffa01dcaca0000
> > [  163.687646]  _raw_spin_lock+0x1a/0x20
> > [  163.691328]  cifs_put_smb_ses+0x37/0x3b0 [cifs]
> > [  163.695906]  smb2_find_smb_tcon+0x8a/0xd0 [cifs]
> > [  163.700580]  smb2_handle_cancelled_mid+0x3e/0x90 [cifs]
> > [  163.705865]  _cifs_mid_q_entry_release+0x83/0xb0 [cifs]
> > [  163.711146]  cifs_mid_q_entry_release+0x41/0x50 [cifs]
> > [  163.716339]  cifs_demultiplex_thread+0x2f5/0x7a0 [cifs]
> > [  163.721616]  ? cifs_handle_standard+0x190/0x190 [cifs]
> > [  163.726806]  kthread+0x10c/0x130
> > [  163.730051]  ? set_kthread_struct+0x40/0x40
> > [  163.734256]  ret_from_fork+0x1f/0x30
> > [  186.697897] watchdog: BUG: soft lockup - CPU#6 stuck for 78s! [xfs_fsr:6618]
> > [  186.704986] Modules linked in: nls_utf8 cifs cifs_arc4 rdma_cm iw_cm ib_cm ib_core cifs_md4 dns_resolver fscache netfs rfkill intel_rapl_msr intel_rapl_common sunrpc isst_if_common nfit x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm ipmi_ssif mgag200 i2c_algo_bit drm_kms_helper irqbypass acpi_ipmi syscopyarea sysfillrect ipmi_si rapl ses sysimgblt intel_cstate fb_sys_fops enclosure intel_uncore cec ipmi_devintf mei_me mei acpi_tad ipmi_msghandler pcspkr lpc_ich ioatdma hpilo acpi_power_meter dca drm fuse xfs libcrc32c sd_mod t10_pi sg crct10dif_pclmul uas crc32_pclmul crc32c_intel smartpqi serio_raw usb_storage tg3 ghash_clmulni_intel scsi_transport_sas hpwdt wmi
> > [  186.765293] CPU: 6 PID: 6618 Comm: xfs_fsr Kdump: loaded Tainted: G          I  L    5.14.0-master-27151f177827+ #32
> > [  186.775874] Hardware name: HPE ProLiant DL388 Gen10/ProLiant DL388 Gen10, BIOS U30 04/18/2019
> > [  186.784446] RIP: 0010:native_queued_spin_lock_slowpath.part.0+0x42/0x190
> > [  186.791186] Code: 0f ba 2a 08 0f 92 c1 8b 02 0f b6 c9 c1 e1 08 30 e4 09 c8 a9 00 01 ff ff 0f 85 ed 00 00 00 85 c0 74 0e 8b 02 84 c0 74 08 f3 90 <8b> 02 84 c0 75 f8 b8 01 00 00 00 66 89 02 c3 8b 37 b8 00 02 00 00
> > [  186.810063] RSP: 0018:ffffaedb4abcbb88 EFLAGS: 00000202
> > [  186.815314] RAX: 0000000000000101 RBX: ffffa016a569fec0 RCX: 0000000000000000
> > [  186.822488] RDX: ffffffffc0deb2b4 RSI: 0000000000000000 RDI: ffffffffc0deb2b4
> > [  186.829662] RBP: ffffa01dc2a8c000 R08: 0000000000000001 R09: 0000000000000064
> > [  186.836836] R10: ffffa016a569fec0 R11: 0000000074736574 R12: ffffa016a569fec0
> > [  186.844009] R13: ffffaedb4abcbcf0 R14: ffffaedb4abcbc6c R15: 0000000000000000
> > [  186.851183] FS:  00007fa1ece9d740(0000) GS:ffffa01d9fd80000(0000) knlGS:0000000000000000
> > [  186.859319] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > [  186.865096] CR2: 00007ffc4ea8bf40 CR3: 000000015448c002 CR4: 00000000007706e0
> > [  186.872268] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [  186.879442] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> > [  186.886615] PKRU: 55555554
> > [  186.889332] Call Trace:
> > [  186.891789]  _raw_spin_lock+0x1a/0x20
> > [  186.895471]  _get_xid+0x11/0xa0 [cifs]
> > [  186.899270]  cifs_revalidate_dentry_attr+0x70/0x360 [cifs]
> > [  186.904811]  cifs_revalidate_dentry+0xf/0x20 [cifs]
> > [  186.909740]  cifs_d_revalidate+0x51/0x150 [cifs]
> > [  186.914406]  lookup_fast+0xd2/0x160
> > [  186.917913]  walk_component+0x41/0x1d0
> > [  186.921683]  path_lookupat+0x6e/0x1b0
> > [  186.925364]  __filename_lookup+0xcf/0x1d0
> > [  186.929392]  ? path_openat+0x21d/0x2b0
> > [  186.933160]  ? __virt_addr_valid+0x45/0x70
> > [  186.937279]  ? __check_object_size.part.0+0x11f/0x140
> > [  186.942357]  user_path_at_empty+0x3a/0x60
> > [  186.946386]  vfs_statx+0x74/0x130
> > [  186.949717]  ? rcu_nocb_try_bypass+0x4a/0x3f0
> > [  186.954096]  __do_sys_newfstatat+0x31/0x70
> > [  186.958213]  ? syscall_trace_enter.constprop.0+0x13d/0x1b0
> > [  186.963729]  do_syscall_64+0x38/0x90
> > [  186.967323]  entry_SYSCALL_64_after_hwframe+0x44/0xae
> > [  186.972401] RIP: 0033:0x7fa1ecfa0dee
> > [  186.975994] Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 07 00 00 00 0f 1f 80 00 00 00 00 f3 0f 1e fa 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 0b 31 c0 c3 0f 1f 84 00 00 00 00 00 48 8b 15 01
> > [  186.994872] RSP: 002b:00007ffc4ea8dfc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000106
> > [  187.002483] RAX: ffffffffffffffda RBX: 00007ffc4ea8e728 RCX: 00007fa1ecfa0dee
> > [  187.009655] RDX: 00007ffc4ea8e070 RSI: 00007ffc4ea903e9 RDI: 00000000ffffff9c
> > [  187.016829] RBP: 0000000000000003 R08: 00000000018f12f0 R09: 0000000000000001
> > [  187.024003] R10: 0000000000000100 R11: 0000000000000202 R12: 00007ffc4ea903e9
> > [  187.031175] R13: 00007ffc4ea8e070 R14: 00007fa1ed11cc00 R15: 000000000040ce08
> > [  190.794869] watchdog: BUG: soft lockup - CPU#22 stuck for 82s! [cifsd:6084]
> > [  190.801872] Modules linked in: nls_utf8 cifs cifs_arc4 rdma_cm iw_cm ib_cm ib_core cifs_md4 dns_resolver fscache netfs rfkill intel_rapl_msr intel_rapl_common sunrpc isst_if_common nfit x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm ipmi_ssif mgag200 i2c_algo_bit drm_kms_helper irqbypass acpi_ipmi syscopyarea sysfillrect ipmi_si rapl ses sysimgblt intel_cstate fb_sys_fops enclosure intel_uncore cec ipmi_devintf mei_me mei acpi_tad ipmi_msghandler pcspkr lpc_ich ioatdma hpilo acpi_power_meter dca drm fuse xfs libcrc32c sd_mod t10_pi sg crct10dif_pclmul uas crc32_pclmul crc32c_intel smartpqi serio_raw usb_storage tg3 ghash_clmulni_intel scsi_transport_sas hpwdt wmi
> > [  190.862180] CPU: 22 PID: 6084 Comm: cifsd Kdump: loaded Tainted: G          I  L    5.14.0-master-27151f177827+ #32
> > [  190.872674] Hardware name: HPE ProLiant DL388 Gen10/ProLiant DL388 Gen10, BIOS U30 04/18/2019
> > [  190.881243] RIP: 0010:native_queued_spin_lock_slowpath.part.0+0x42/0x190
> > [  190.887983] Code: 0f ba 2a 08 0f 92 c1 8b 02 0f b6 c9 c1 e1 08 30 e4 09 c8 a9 00 01 ff ff 0f 85 ed 00 00 00 85 c0 74 0e 8b 02 84 c0 74 08 f3 90 <8b> 02 84 c0 75 f8 b8 01 00 00 00 66 89 02 c3 8b 37 b8 00 02 00 00
> > [  190.906861] RSP: 0018:ffffaedb47e5fd48 EFLAGS: 00000202
> > [  190.912113] RAX: 0000000000000101 RBX: ffffffffc0deb2c4 RCX: 0000000000000000
> > [  190.919287] RDX: ffffffffc0deb2c4 RSI: 0000000000000000 RDI: ffffffffc0deb2c4
> > [  190.926460] RBP: ffffa01732f27800 R08: ffffa01732f27800 R09: ffffaedb47e5fd08
> > [  190.933631] R10: ffffa016888a0000 R11: ffffffffa0c060e0 R12: ffffa01dcaca0000
> > [  190.940804] R13: ffffaedb47e5feb0 R14: ffffa016b8c4cf00 R15: ffffa01dcaca0000
> > [  190.947976] FS:  0000000000000000(0000) GS:ffffa01d9ff00000(0000) knlGS:0000000000000000
> > [  190.956110] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > [  190.961887] CR2: 0000560f1678c958 CR3: 0000000ae1e10003 CR4: 00000000007706e0
> > [  190.969062] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [  190.976236] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> > [  190.983409] PKRU: 55555554
> > [  190.986127] Call Trace:
> > [  190.988584]  _raw_spin_lock+0x1a/0x20
> > [  190.992267]  cifs_put_smb_ses+0x37/0x3b0 [cifs]
> > [  190.996848]  smb2_find_smb_tcon+0x8a/0xd0 [cifs]
> > [  191.001524]  smb2_handle_cancelled_mid+0x3e/0x90 [cifs]
> > [  191.006809]  _cifs_mid_q_entry_release+0x83/0xb0 [cifs]
> > [  191.012090]  cifs_mid_q_entry_release+0x41/0x50 [cifs]
> > [  191.017286]  cifs_demultiplex_thread+0x2f5/0x7a0 [cifs]
> > [  191.022562]  ? cifs_handle_standard+0x190/0x190 [cifs]
> > [  191.027752]  kthread+0x10c/0x130
> > [  191.030995]  ? set_kthread_struct+0x40/0x40
> > [  191.035199]  ret_from_fork+0x1f/0x30
> >
> >

-- 
Murphy



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