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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1888354
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: eoan
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https://bugs.launchpad.net/bugs/1888354
Title:
Kernel oops on 5.3.0.62 (Ubuntu Linux 19.10)
Status in linux package in Ubuntu:
Incomplete
Bug description:
This is the third kernel oops (VM freeze) in two days after updating
linux-generic to 5.3.0.62
Output from syslog:
Jul 20 15:11:13 santiago kernel: [ 7727.794172] BUG: kernel NULL pointer
dereference, address: 0000000000000010
Jul 20 15:11:13 santiago kernel: [ 7727.794180] #PF: supervisor read access
in kernel mode
Jul 20 15:11:13 santiago kernel: [ 7727.794182] #PF: error_code(0x0000) -
not-present page
Jul 20 15:11:13 santiago kernel: [ 7727.794183] PGD 0 P4D 0
Jul 20 15:11:13 santiago kernel: [ 7727.794186] Oops: 0000 [#1] SMP PTI
Jul 20 15:11:13 santiago kernel: [ 7727.794188] CPU: 1 PID: 1176 Comm: nfsd
Not tainted 5.3.0-62-generic #56-Ubuntu
Jul 20 15:11:13 santiago kernel: [ 7727.794189] Hardware name: VMware, Inc.
VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018
Jul 20 15:11:13 santiago kernel: [ 7727.794196] RIP:
0010:__cgroup_bpf_run_filter_skb+0x25e/0x3c0
Jul 20 15:11:13 santiago kernel: [ 7727.794198] Code: 40 89 45 cc 48 8b 45 a0
48 c7 00 00 00 00 00 48 c7 40 08 00 00 00 00 c7 40 10 00 00 00 00 e9 cf fe ff
ff 48 8b 86 38 06 00 00 <4c> 8b 78 10 4c 8d 60 10 4d 85 ff 0f 84 3a 01 00 00 49
8d 46 30 31
Jul 20 15:11:13 santiago kernel: [ 7727.794199] RSP: 0018:ffffb95e415b38f0
EFLAGS: 00010246
Jul 20 15:11:13 santiago kernel: [ 7727.794201] RAX: 0000000000000000 RBX:
0000000000000000 RCX: 0000000000000034
Jul 20 15:11:13 santiago kernel: [ 7727.794202] RDX: 0000000000000000 RSI:
ffff92e190424000 RDI: ffff92e1b96a4ec0
Jul 20 15:11:13 santiago kernel: [ 7727.794203] RBP: ffffb95e415b3978 R08:
ffff92e10f0fef00 R09: 0000000000000000
Jul 20 15:11:13 santiago kernel: [ 7727.794204] R10: ffff92e1657aab30 R11:
0000000000000003 R12: ffff92e1b96a4ec0
Jul 20 15:11:13 santiago kernel: [ 7727.794205] R13: 0000000000000001 R14:
ffff92e1a8d7c6e0 R15: ffffffffa23e1280
Jul 20 15:11:13 santiago kernel: [ 7727.794206] FS: 0000000000000000(0000)
GS:ffff92e1bfc80000(0000) knlGS:0000000000000000
Jul 20 15:11:13 santiago kernel: [ 7727.794208] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Jul 20 15:11:13 santiago kernel: [ 7727.794209] CR2: 0000000000000010 CR3:
000000022ce8a006 CR4: 00000000000606e0
Jul 20 15:11:13 santiago kernel: [ 7727.794256] Call Trace:
Jul 20 15:11:13 santiago kernel: [ 7727.794269] ? nf_confirm+0xd6/0x100
[nf_conntrack]
Jul 20 15:11:13 santiago kernel: [ 7727.794272] ip_finish_output+0x76/0xb0
Jul 20 15:11:13 santiago kernel: [ 7727.794274] ip_output+0x75/0xf0
Jul 20 15:11:13 santiago kernel: [ 7727.794276] ?
__ip_finish_output+0x1e0/0x1e0
Jul 20 15:11:13 santiago kernel: [ 7727.794278] ip_local_out+0x3d/0x50
Jul 20 15:11:13 santiago kernel: [ 7727.794279] __ip_queue_xmit+0x17a/0x450
Jul 20 15:11:13 santiago kernel: [ 7727.794281] ? __switch_to_asm+0x34/0x70
Jul 20 15:11:13 santiago kernel: [ 7727.794283] ? __switch_to_asm+0x40/0x70
Jul 20 15:11:13 santiago kernel: [ 7727.794284] ? __switch_to_asm+0x34/0x70
Jul 20 15:11:13 santiago kernel: [ 7727.794287] ip_queue_xmit+0x10/0x20
Jul 20 15:11:13 santiago kernel: [ 7727.794288]
__tcp_transmit_skb+0x555/0xb10
Jul 20 15:11:13 santiago kernel: [ 7727.794290] tcp_write_xmit+0x3bc/0xb90
Jul 20 15:11:13 santiago kernel: [ 7727.794292] ? __alloc_skb+0x98/0x1d0
Jul 20 15:11:13 santiago kernel: [ 7727.794294]
__tcp_push_pending_frames+0x37/0x100
Jul 20 15:11:13 santiago kernel: [ 7727.794296] tcp_push+0xfd/0x100
Jul 20 15:11:13 santiago kernel: [ 7727.794298] do_tcp_sendpages+0x5d8/0x620
Jul 20 15:11:13 santiago kernel: [ 7727.794300] tcp_sendpage_locked+0x43/0x60
Jul 20 15:11:13 santiago kernel: [ 7727.794302] tcp_sendpage+0x3c/0x60
Jul 20 15:11:13 santiago kernel: [ 7727.794304] inet_sendpage+0x59/0xa0
Jul 20 15:11:13 santiago kernel: [ 7727.794305] kernel_sendpage+0x1e/0x30
Jul 20 15:11:13 santiago kernel: [ 7727.794321] svc_send_common+0x66/0x160
[sunrpc]
Jul 20 15:11:13 santiago kernel: [ 7727.794332] svc_sendto+0xf3/0x200
[sunrpc]
Jul 20 15:11:13 santiago kernel: [ 7727.794352] ?
nfsd4_encode_operation+0x152/0x1b0 [nfsd]
Jul 20 15:11:13 santiago kernel: [ 7727.794360] ?
nfsd4_proc_compound+0x241/0x740 [nfsd]
Jul 20 15:11:13 santiago kernel: [ 7727.794368] ?
nfsd4_decode_compound.constprop.0+0x3b0/0x460 [nfsd]
Jul 20 15:11:13 santiago kernel: [ 7727.794370] ?
refcount_dec_and_lock+0x12/0x60
Jul 20 15:11:13 santiago kernel: [ 7727.794374] ? module_put+0x13/0x20
Jul 20 15:11:13 santiago kernel: [ 7727.794385] svc_tcp_sendto+0x3a/0x50
[sunrpc]
Jul 20 15:11:13 santiago kernel: [ 7727.794394] ? svc_tcp_sendto+0x3a/0x50
[sunrpc]
Jul 20 15:11:13 santiago kernel: [ 7727.794408] svc_send+0x7c/0x150 [sunrpc]
Jul 20 15:11:13 santiago kernel: [ 7727.794418] svc_process+0xe5/0x110
[sunrpc]
Jul 20 15:11:13 santiago kernel: [ 7727.794424] nfsd+0xe8/0x150 [nfsd]
Jul 20 15:11:13 santiago kernel: [ 7727.794427] kthread+0x104/0x140
Jul 20 15:11:13 santiago kernel: [ 7727.794433] ? nfsd_destroy+0x60/0x60
[nfsd]
Jul 20 15:11:13 santiago kernel: [ 7727.794435] ? kthread_park+0x80/0x80
Jul 20 15:11:13 santiago kernel: [ 7727.794437] ret_from_fork+0x35/0x40
Jul 20 15:11:13 santiago kernel: [ 7727.794439] Modules linked in:
rpcsec_gss_krb5 veth xt_nat xt_tcpudp xt_multiport xt_conntrack xt_MASQUERADE
nf_conntrack_netlink nfnetlink ip6table_filter xfrm_user ip6_tables xfrm_algo
xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6
nf_defrag_ipv4 libcrc32c bpfilter br_netfilter bridge stp llc aufs overlay
vmw_vsock_vmci_transport vsock intel_rapl_msr intel_rapl_common sb_edac
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64
crypto_simd cryptd glue_helper vmw_balloon joydev intel_rapl_perf input_leds
serio_raw vmw_vmci mac_hid sch_fq_codel vmwgfx ttm drm_kms_helper drm
fb_sys_fops syscopyarea sysfillrect sysimgblt parport_pc ppdev nfsd lp
auth_rpcgss parport nfs_acl lockd grace sunrpc ip_tables x_tables autofs4
hid_generic usbhid hid psmouse mptspi mptscsih ahci mptbase scsi_transport_spi
libahci e1000 i2c_piix4 pata_acpi
Jul 20 15:11:13 santiago kernel: [ 7727.794488] CR2: 0000000000000010
Jul 20 15:11:13 santiago kernel: [ 7727.794491] ---[ end trace
66ce3afd445b7c66 ]---
Jul 20 15:11:13 santiago kernel: [ 7727.794494] RIP:
0010:__cgroup_bpf_run_filter_skb+0x25e/0x3c0
Jul 20 15:11:13 santiago kernel: [ 7727.794496] Code: 40 89 45 cc 48 8b 45 a0
48 c7 00 00 00 00 00 48 c7 40 08 00 00 00 00 c7 40 10 00 00 00 00 e9 cf fe ff
ff 48 8b 86 38 06 00 00 <4c> 8b 78 10 4c 8d 60 10 4d 85 ff 0f 84 3a 01 00 00 49
8d 46 30 31
Jul 20 15:11:13 santiago kernel: [ 7727.794497] RSP: 0018:ffffb95e415b38f0
EFLAGS: 00010246
Jul 20 15:11:13 santiago kernel: [ 7727.794498] RAX: 0000000000000000 RBX:
0000000000000000 RCX: 0000000000000034
Jul 20 15:11:13 santiago kernel: [ 7727.794499] RDX: 0000000000000000 RSI:
ffff92e190424000 RDI: ffff92e1b96a4ec0
Jul 20 15:11:13 santiago kernel: [ 7727.794500] RBP: ffffb95e415b3978 R08:
ffff92e10f0fef00 R09: 0000000000000000
Jul 20 15:11:13 santiago kernel: [ 7727.794501] R10: ffff92e1657aab30 R11:
0000000000000003 R12: ffff92e1b96a4ec0
Jul 20 15:11:13 santiago kernel: [ 7727.794502] R13: 0000000000000001 R14:
ffff92e1a8d7c6e0 R15: ffffffffa23e1280
Jul 20 15:11:13 santiago kernel: [ 7727.794504] FS: 0000000000000000(0000)
GS:ffff92e1bfc80000(0000) knlGS:0000000000000000
Jul 20 15:11:13 santiago kernel: [ 7727.794505] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Jul 20 15:11:13 santiago kernel: [ 7727.794506] CR2: 0000000000000010 CR3:
000000022ce8a006 CR4: 00000000000606e0
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