Errors and call traces in syslog

[Leondre]

Anyone know what this is and what I would need to do to fix it?

 

Mar 20 09:46:37 Tower kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000038
Mar 20 09:46:37 Tower kernel: IP: tcp_push+0x4e/0xee
Mar 20 09:46:37 Tower kernel: PGD 800000038777e067 P4D 800000038777e067 PUD 385c36067 PMD 0 
Mar 20 09:46:37 Tower kernel: Oops: 0002 [#1] PREEMPT SMP PTI
Mar 20 09:46:37 Tower kernel: Modules linked in: xt_CHECKSUM iptable_mangle ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables vhost_net tun vhost tap xt_nat veth ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables nf_nat xfs md_mod bonding e1000e igb ptp pps_core i2c_algo_bit x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd mpt3sas intel_cstate intel_uncore ahci libahci i2c_i801 intel_rapl_perf i2c_core raid_class scsi_transport_sas video backlight thermal acpi_pad button fan [last unloaded: pps_core]
Mar 20 09:46:37 Tower kernel: CPU: 6 PID: 29298 Comm: docker-proxy Not tainted 4.14.26-unRAID #1
Mar 20 09:46:37 Tower kernel: Hardware name: Gigabyte Technology Co., Ltd. Z270N-WIFI/Z270N-WIFI-CF, BIOS F5 07/06/2017
Mar 20 09:46:37 Tower kernel: task: ffff8803f1b52b80 task.stack: ffffc90002134000
Mar 20 09:46:37 Tower kernel: RIP: 0010:tcp_push+0x4e/0xee
Mar 20 09:46:37 Tower kernel: RSP: 0018:ffffc90002137d30 EFLAGS: 00010246
Mar 20 09:46:37 Tower kernel: RAX: 0000000000000000 RBX: 00000000000005a8 RCX: 0000000000000001
Mar 20 09:46:37 Tower kernel: RDX: 0000000000000001 RSI: 0000000000000040 RDI: ffff8803efa4cc80
Mar 20 09:46:37 Tower kernel: RBP: ffff8803f1b534a0 R08: 0000000000003890 R09: ffffffff8151db5d
Mar 20 09:46:37 Tower kernel: R10: ffff8803efa4cdd8 R11: 0000000000000000 R12: ffff8803efa4cc80
Mar 20 09:46:37 Tower kernel: R13: 0000000000000000 R14: ffff88002e81e000 R15: 00000000ffffffe0
Mar 20 09:46:37 Tower kernel: FS:  000000c420056090(0000) GS:ffff88042ed80000(0000) knlGS:0000000000000000
Mar 20 09:46:37 Tower kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Mar 20 09:46:37 Tower kernel: CR2: 0000000000000038 CR3: 000000039335a002 CR4: 00000000003626e0
Mar 20 09:46:37 Tower kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Mar 20 09:46:37 Tower kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Mar 20 09:46:37 Tower kernel: Call Trace:
Mar 20 09:46:37 Tower kernel: tcp_sendmsg_locked+0xa53/0xbac
Mar 20 09:46:37 Tower kernel: tcp_sendmsg+0x23/0x35
Mar 20 09:46:37 Tower kernel: sock_sendmsg+0x14/0x1e
Mar 20 09:46:37 Tower kernel: sock_write_iter+0x70/0x86
Mar 20 09:46:37 Tower kernel: __vfs_write+0xe1/0x109
Mar 20 09:46:37 Tower kernel: vfs_write+0xc3/0x166
Mar 20 09:46:37 Tower kernel: SyS_write+0x48/0x81
Mar 20 09:46:37 Tower kernel: do_syscall_64+0xfe/0x107
Mar 20 09:46:37 Tower kernel: entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Mar 20 09:46:37 Tower kernel: RIP: 0033:0x46f214
Mar 20 09:46:37 Tower kernel: RSP: 002b:000000c4204b4ab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
Mar 20 09:46:37 Tower kernel: RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046f214
Mar 20 09:46:37 Tower kernel: RDX: 0000000000008000 RSI: 000000c4205d4000 RDI: 0000000000000009
Mar 20 09:46:37 Tower kernel: RBP: 000000c4204b4b08 R08: 0000000000000000 R09: 0000000000000000
Mar 20 09:46:37 Tower kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
Mar 20 09:46:37 Tower kernel: R13: 0000000000000000 R14: 0000000000455570 R15: 0000000000000000
Mar 20 09:46:37 Tower 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 20 09:46:37 Tower kernel: RIP: tcp_push+0x4e/0xee RSP: ffffc90002137d30
Mar 20 09:46:37 Tower kernel: CR2: 0000000000000038
Mar 20 09:46:37 Tower kernel: ---[ end trace b00939d58195ba58 ]---

 

tower-diagnostics-20180320-1059.zip

[JorgeB]

Several users have the same error with v6.5, possibly plex related??

 

If it more than the call trace, i.e., something is not working correctly you can downgrade to v6.4.1

[Leondre]

Could be plex related, though nothing is not working as far as I can tell.

[JorgeB]

Looks like it's a kernel bug:

 

https://lime-technology.com/forums/topic/70095-unraid-os-version-650-stable-release-available/?do=findComment&comment=642386

 

[andreidelait]

In this case doesn't look to be plex

 

Mar 20 09:46:37 Tower kernel: CPU: 6 PID: 29298 Comm: docker-proxy Not tainted 4.14.26-unRAID #1

This is the line where you can identify what docker stopped working. 

It is a bug present in 6.5.0 that may be kernel related. I'll have a look in the thread posted above.