Oops in _raw_spin_lock_irqsave - linux kernel 4.16.2-1.el7.elrepo.x86_64

Tue Oct 20 18:38:22 UTC 2020

I don't have a kernel that old and I can't access the Redhat page -
but I would expect that given the date it was posted the fix would be
in the last two Redhat releases 8.1 and 8.2.  Have you tried those?

On Tue, Oct 20, 2020 at 12:49 AM Vidhesh Ramesh
<vidhesh.ramesh at komprise.com> wrote:
>
> [1.] One line summary of the problem:
> oops kernel panic
> [2.] Full description of the problem/report:
> ESX VM hangs with a kernel panic when cifs shares are mounted and accessed. Unable to ssh to the VM and the console of the VM is also not responding. With kdump service running and core collected the VM restarts successfully.
> [3.] Keywords (i.e., modules, networking, kernel):
> cifs, kernel, panic, mount
> [4.] Kernel information
> [4.1.] Kernel version (from /proc/version):
> Linux version 4.16.2-1.el7.elrepo.x86_64 (mockbuild at Build64R7) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-28) (GCC)) #1 SMP Thu Apr 12 09:08:05 EDT 2018
> [4.2.] Kernel .config file:
> Please check the file uploaded
> [5.] Most recent kernel version which did not have the bug:
> [6.] Output of Oops.. message (if applicable) with symbolic information
>      resolved (see Documentation/admin-guide/oops-tracing.rst)
> [1866796.225242] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
> [1866796.225758] IP: _raw_spin_lock_irqsave+0x22/0x40
> [1866796.226236] PGD 8000000428341067 P4D 8000000428341067 PUD 0
> [1866796.226736] Oops: 0002 [#1] SMP PTI
> [1866796.227202] Modules linked in: nfsv3 nfs fscache arc4 md4 nls_utf8 cifs ccm dns_resolver nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vmw_vsock_vmci_transport vsock ppdev sb_edac crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc vmw_balloon aesni_intel crypto_simd glue_helper cryptd intel_rapl_perf joydev input_leds pcspkr sg shpchp i2c_piix4 vmw_vmci parport_pc parport nfsd
> [1866796.232074]  auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sr_mod cdrom ata_generic pata_acpi sd_mod crc32c_intel serio_raw vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ata_piix mptspi scsi_transport_spi vmxnet3 mptscsih drm mptbase libata floppy dm_mirror dm_region_hash dm_log dm_mod dax
> [1866796.234432] CPU: 3 PID: 11126 Comm: cifsd Tainted: G        W        4.16.2-1.el7.elrepo.x86_64 #1
> [1866796.235687] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018
> [1866796.237004] RIP: 0010:_raw_spin_lock_irqsave+0x22/0x40
> [1866796.237683] RSP: 0018:ffffc90007a2bc00 EFLAGS: 00010046
> [1866796.238361] RAX: 0000000000000000 RBX: 0000000000000246 RCX: 0000000000000002
> [1866796.239049] RDX: 0000000000000001 RSI: ffffc90007a2bc40 RDI: 0000000000000000
> [1866796.239757] RBP: ffffc90007a2bc08 R08: 0000000000000242 R09: 0000000000000000
> [1866796.240494] R10: 0000000000000000 R11: 00000000000003c9 R12: 0000000000000000
> [1866796.241194] R13: ffff88041b26f8c8 R14: ffffc90007a2bcf8 R15: 0000000000000000
> [1866796.241915] FS:  0000000000000000(0000) GS:ffff88043fcc0000(0000) knlGS:0000000000000000
> [1866796.242670] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [1866796.243438] CR2: 0000000000000000 CR3: 000000042ab22000 CR4: 00000000000406e0
> [1866796.244293] Call Trace:
> [1866796.245069]  remove_wait_queue+0x19/0x60
> [1866796.245877]  sk_wait_data+0xf6/0x140
> [1866796.246691]  ? prepare_to_wait+0xb0/0xb0
> [1866796.247504]  tcp_recvmsg+0x5f5/0xb40
> [1866796.248560]  ? select_task_rq_fair+0x4d5/0xba0
> [1866796.249420]  inet_recvmsg+0x56/0xd0
> [1866796.250222]  sock_recvmsg+0x43/0x50
> [1866796.251115]  cifs_readv_from_socket+0x76/0x200 [cifs]
> [1866796.251953]  cifs_read_from_socket+0x52/0x70 [cifs]
> [1866796.252969]  cifs_demultiplex_thread+0x11b/0xa90 [cifs]
> [1866796.253740]  kthread+0x105/0x140
> [1866796.254486]  ? cifs_handle_standard+0x190/0x190 [cifs]
> [1866796.255198]  ? kthread_bind+0x20/0x20
> [1866796.255907]  ? do_syscall_64+0x79/0x1b0
> [1866796.256601]  ret_from_fork+0x35/0x40
> [1866796.257251] Code: c3 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 53 9c 58 0f 1f 44 00 00 48 89 c3 fa 66 0f 1f 44 00 00 31 c0 ba 01 00 00 00 <f0> 0f b1 17 85 c0 75 06 48 89 d8 5b 5d c3 89 c6 e8 36 91 8b ff
> [1866796.259312] RIP: _raw_spin_lock_irqsave+0x22/0x40 RSP: ffffc90007a2bc00
>
> I see the solution posted in https://access.redhat.com/solutions/4354471 but I am unable to access the solution.
>
> Vidhesh Ramesh
> [1866796.260111] CR2: 0000000000000000
> [7.] A small shell script or example program which triggers the
>      problem (if possible)
>
> Vidhesh Ramesh

-- 
Thanks,

Steve