[CentOS-devel] Kernel Panic: CentOS 7.4

[Trevor Hemsley]

Run `yum update`. You are more than 2 years out of date.

Only the current version - 7.7 at present - is supported, any other
version, the answer is update.

Trevor

On 05/11/2019 18:20, sumit gambhir wrote:
>
> There was a power cycle during the upgrade. 
>
> We got following trace during kernel panic.
>
> Cannot login after software upgrade – system initializing message on
> Portal; on cli login prompt is seen following messages:
>
>
> System crashing due to
> [ 8780.678167] Hardware name: Cisco Systems, Inc.
> ENCS5412/K9/ENCS5412/K9, BIOS ENCS54_2.7.020620190951 02/06/2019
> [ 8780.800565] Workqueue: events flush_to_ldisc
> [ 8780.853390] task: ffff9707f4bf30c0 ti: ffff9707f4448000 task.ti:
> ffff9707f4448000
> [ 8780.944588] RIP: 0010:[<ffffffff83874b73>] [<ffffffff83874b73>]
> uart_write_room+0x13/0x50
> [ 8781.045274] RSP: 0018:ffff9707f444bc60 EFLAGS: 00010286
> [ 8781.110468] RAX: 0000000000000800 RBX: 000000000000000a RCX:
> ffff9707f444bfd8
> [ 8781.197509] RDX: ffffffff83874b60 RSI: ffff970ed8206c00 RDI:
> ffff970ed8205000
> [ 8781.284540] RBP: ffff9707f444bc70 R08: ffff970ec1e6ec00 R09:
> a3c427ffdbc3c000
> [ 8781.371561] R10: a3c427ffdbc3c000 R11: 0000000000000001 R12:
> 0000000000000000
> [ 8781.458579] R13: ffff970ed8205000 R14: ffff970ed8206c00 R15:
> ffff970ec1e6ecf6
> [ 8781.545589] FS: 0000000000000000(0000) GS:ffff970edf000000(0000)
> knlGS:0000000000000000
> [ 8781.644060] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 8781.714429] CR2: 0000000000000150 CR3: 000000085b2be000 CR4:
> 00000000003607f0
> [ 8781.801442] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [ 8781.888437] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
> 0000000000000400
> [ 8781.975407] Call Trace:
> [ 8782.006205] [<ffffffff8385c730>] tty_write_room+0x20/0x30
> [ 8782.073406] [<ffffffff8385966e>] process_echoes+0x6e/0x2e0
> [ 8782.141642] [<ffffffff83b65e92>] ? mutex_lock+0x12/0x2f
> [ 8782.206744] [<ffffffff8385c14c>] n_tty_receive_char+0xd4c/0xe30
> [ 8782.280188] [<ffffffff8385c3dc>] n_tty_receive_buf+0x1ac/0x470
> [ 8782.352569] [<ffffffff8385f1ff>] flush_to_ldisc+0x10f/0x160
> [ 8782.421832] [<ffffffff834b9d4f>] process_one_work+0x17f/0x440
> [ 8782.493188] [<ffffffff834bade6>] worker_thread+0x126/0x3c0
> [ 8782.561412] [<ffffffff834bacc0>] ? manage_workers.isra.25+0x2a0/0x2a0
> [ 8782.641074] [<ffffffff834c1c31>] kthread+0xd1/0xe0
> [ 8782.700887] [<ffffffff834c1b60>] ? insert_kthread_work+0x40/0x40
> [ 8782.775363] [<ffffffff83b74c37>] ret_from_fork_nospec_begin+0x21/0x21
> [ 8782.855038] [<ffffffff834c1b60>] ? insert_kthread_work+0x40/0x40
> [ 8782.929516] Code: 01 00 00 81 e3 ff 0f 00 00 e8 0a 56 2f 00 89 d8
> 5b 41 5c 5d c3 0f 1f 00 0f 1f 44 00 00 55 48 89 e5 41 54 53 4c 8b a7
> 18 02 00 00 <49> 8b bc 24 50 01 00 00 e8 50 59 2f 00 41 8b 9c 24 48 01
> 00 00
> [ 8783.165634] RIP [<ffffffff83874b73>] uart_write_room+0x13/0x50
> [ 8783.238184] RSP <ffff9707f444bc60>
> [ 8783.281471] CR2: 0000000000000150
>
>  
>
>  
>
> While going through the list of cases on centos, we found this similar
> case - https://bugs.centos.org/view.php?id=14265#history. However,
> there has been no activity on it since long. 
>
> Can you please help us out to find out if there is an ongoing fix for it?
>
>
> _______________________________________________
> CentOS-devel mailing list
> CentOS-devel at centos.org
> https://lists.centos.org/mailman/listinfo/centos-devel

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