oops, 6.5 call trace, and corrupted vm img - diags attached

[1812]

This is never fun before you've had your coffee...

 

Woke up to find a vm hung on boot (which was weird because I left it running the night before.) Second vm running on the same machine is unaffected.

 

Mar 18 06:25:55 Twins kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000038
Mar 18 06:25:55 Twins kernel: IP: tcp_push+0x4e/0xee
Mar 18 06:25:55 Twins kernel: PGD 80000000be856067 P4D 80000000be856067 PUD beb46067 PMD 0 
Mar 18 06:25:55 Twins kernel: Oops: 0002 [#1] PREEMPT SMP PTI
Mar 18 06:25:55 Twins kernel: Modules linked in: xt_nat veth xt_CHECKSUM iptable_mangle ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables vhost_net tun vhost tap ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables nf_nat cmac arc4 ecb md4 cifs ccm xfs md_mod ipmi_devintf smsc47b397 bonding wmi_bmof intel_powerclamp coretemp kvm_intel kvm crc32c_intel intel_cstate intel_uncore ahci libahci tg3 i7core_edac ptp pps_core wmi button acpi_cpufreq
Mar 18 06:25:55 Twins kernel: CPU: 0 PID: 31937 Comm: python Tainted: G          I     4.14.26-unRAID #1
Mar 18 06:25:55 Twins kernel: Hardware name: Hewlett-Packard HP Z400 Workstation/0B4Ch, BIOS 786G3 v03.07 04/06/2010
Mar 18 06:25:55 Twins kernel: task: ffff8802639e3300 task.stack: ffffc9000e2ec000
Mar 18 06:25:55 Twins kernel: RIP: 0010:tcp_push+0x4e/0xee
Mar 18 06:25:55 Twins kernel: RSP: 0018:ffffc9000e2efd60 EFLAGS: 00010246
Mar 18 06:25:55 Twins kernel: RAX: 0000000000000000 RBX: 00000000000005a8 RCX: 0000000000000000
Mar 18 06:25:55 Twins kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880472b7d800
Mar 18 06:25:55 Twins kernel: RBP: ffff8802639e3c20 R08: 000000000000fe88 R09: 0000000000000006
Mar 18 06:25:55 Twins kernel: R10: ffff880472b7d958 R11: 0000000000000000 R12: ffff880472b7d800
Mar 18 06:25:55 Twins kernel: R13: 0000000000000000 R14: ffff8801038e9e00 R15: 00000000ffffffe0
Mar 18 06:25:55 Twins kernel: FS:  00001553b093d700(0000) GS:ffff8804ad200000(0000) knlGS:0000000000000000
Mar 18 06:25:55 Twins kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Mar 18 06:25:55 Twins kernel: CR2: 0000000000000038 CR3: 0000000007132000 CR4: 00000000000026f0
Mar 18 06:25:55 Twins kernel: Call Trace:
Mar 18 06:25:55 Twins kernel: tcp_sendmsg_locked+0xa53/0xbac
Mar 18 06:25:55 Twins kernel: tcp_sendmsg+0x23/0x35
Mar 18 06:25:55 Twins kernel: sock_sendmsg+0x14/0x1e
Mar 18 06:25:55 Twins kernel: SyS_sendto+0xc0/0xe7
Mar 18 06:25:55 Twins kernel: ? __switch_to+0x171/0x2e8
Mar 18 06:25:55 Twins kernel: ? finish_task_switch+0x12c/0x1bc
Mar 18 06:25:55 Twins kernel: ? syscall_trace_enter+0x154/0x17e
Mar 18 06:25:55 Twins kernel: do_syscall_64+0xfe/0x107
Mar 18 06:25:55 Twins kernel: entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Mar 18 06:25:55 Twins kernel: RIP: 0033:0x1553b05159ff
Mar 18 06:25:55 Twins kernel: RSP: 002b:00007ffd69be7900 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
Mar 18 06:25:55 Twins kernel: RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00001553b05159ff
Mar 18 06:25:55 Twins kernel: RDX: 0000000000002000 RSI: 00000000012c9204 RDI: 0000000000000004
Mar 18 06:25:55 Twins kernel: RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
Mar 18 06:25:55 Twins kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00000000012c9204
Mar 18 06:25:55 Twins kernel: R13: 0000000000000000 R14: 0000000000002000 R15: 00007ffd69be7980
Mar 18 06:25:55 Twins kernel: Code: d0 75 02 31 c0 41 89 f3 41 81 e3 00 80 00 00 74 1a 44 8b 8f 68 05 00 00 41 d1 e9 44 2b 8f 6c 06 00 00 44 03 8f 74 06 00 00 79 10 <80> 48 38 08 8b 8f 6c 06 00 00 89 8f 74 06 00 00 40 80 e6 01 74 
Mar 18 06:25:55 Twins kernel: RIP: tcp_push+0x4e/0xee RSP: ffffc9000e2efd60
Mar 18 06:25:55 Twins kernel: CR2: 0000000000000038
Mar 18 06:25:55 Twins kernel: ---[ end trace c1a19fc4b1520c17 ]---

 

day before relating to TCP this is also in the logs:

Mar 17 21:30:40 Twins kernel: TCP: request_sock_TCP: Possible SYN flooding on port 61208. Sending cookies.  Check SNMP counters.

 

twins-diagnostics-20180318-0633.zip

[JorgeB]

50 minutes ago, 1812 said:

Mar 18 06:25:55 Twins kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000038

I've been seeing these same errors on other users with v6.5.0, likely kernel related.

[strike]

I'm also seeing almost the exact same call traces in my log now on 6.5.0. Everything seems to be working as it should tho, so I've just been ignoring it. I've also seen several other people posting the same issue