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<div class="moz-cite-prefix">Looking at kernel bugs on
bugs.centos.org is not very useful. <br>
<br>
CentOS does not make code changes, it only rebuilds packages that
are released for RHEL and publishes them. We really have no idea
what code changes have been made by Red Hat. The current CentOS
7.7 kernel is 3.10.0-1062.4.1.el7.x86_64 and there are over 32,000
entries in `rpm -q --changelog kernel-3.10.0-1062.4.1.el7.x86_64`
before you reach any mention of the 3.10.0-693.* 7.4-series
kernels. That's 32,000 potential bugs that could have fixed your
problem.<br>
<br>
If someone who had that problem had updated to a newer kernel and
reported it as fixed then we would probably have closed that bug.
Since no-one has, that either means they didn't care enough to
update the bug report or no-one has tested it or it's not fixed.
It would appear that you'll be the one to find out...<br>
<br>
Trevor<br>
<br>
On 05/11/2019 18:57, sumit gambhir wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAMkC=BcLApu7z6=eR5VBO4hC1AKqXKMrSZvhqBdKGjU_52=N+Q@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr"><a
href="https://bugs.centos.org/view.php?id=14265#history."
moz-do-not-send="true">https://bugs.centos.org/view.php?id=14265#history.</a> is
still in the open state.
<div>Or Is it fixed in CentOS 7.7?</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Nov 6, 2019 at 12:20
AM Trevor Hemsley <<a
href="mailto:trevor.hemsley@ntlworld.com"
moz-do-not-send="true">trevor.hemsley@ntlworld.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div>Run `yum update`. You are more than 2 years out of
date.<br>
<br>
Only the current version - 7.7 at present - is supported,
any other version, the answer is update.<br>
<br>
Trevor<br>
<br>
On 05/11/2019 18:20, sumit gambhir wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<p class="MsoNormal" style="margin:0in 0in
0.0001pt;font-size:11pt"><font face="arial,
sans-serif">There was a power cycle during the
upgrade. </font></p>
<p class="MsoNormal" style="margin:0in 0in
0.0001pt;font-size:11pt"><font face="arial,
sans-serif">We got following trace during kernel
panic.</font></p>
<p class="MsoNormal" style="margin:0in 0in
0.0001pt;font-size:11pt"><span
style="font-family:arial,sans-serif;font-size:10.5pt;color:rgb(51,51,51);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Cannot
login after software upgrade – system initializing
message on Portal; on cli login prompt is seen
following messages:</span></p>
<p class="MsoNormal" style="margin:0in 0in
0.0001pt;font-size:11pt"><span
style="font-size:10.5pt;color:rgb(51,51,51)"><font
face="arial, sans-serif"><br>
</font> <font face="tahoma, sans-serif"><span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">System
crashing due to</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8780.678167] Hardware name: Cisco Systems, Inc.
ENCS5412/K9/ENCS5412/K9, BIOS
ENCS54_2.7.020620190951 02/06/2019</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8780.800565] Workqueue: events flush_to_ldisc</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8780.853390] task: ffff9707f4bf30c0 ti:
ffff9707f4448000 task.ti: ffff9707f4448000</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8780.944588] RIP:
0010:[<ffffffff83874b73>]
[<ffffffff83874b73>]
uart_write_room+0x13/0x50</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.045274] RSP: 0018:ffff9707f444bc60 EFLAGS:
00010286</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.110468] RAX: 0000000000000800 RBX:
000000000000000a RCX: ffff9707f444bfd8</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.197509] RDX: ffffffff83874b60 RSI:
ffff970ed8206c00 RDI: ffff970ed8205000</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.284540] RBP: ffff9707f444bc70 R08:
ffff970ec1e6ec00 R09: a3c427ffdbc3c000</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.371561] R10: a3c427ffdbc3c000 R11:
0000000000000001 R12: 0000000000000000</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.458579] R13: ffff970ed8205000 R14:
ffff970ed8206c00 R15: ffff970ec1e6ecf6</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.545589] FS: 0000000000000000(0000)
GS:ffff970edf000000(0000) knlGS:0000000000000000</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.644060] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.714429] CR2: 0000000000000150 CR3:
000000085b2be000 CR4: 00000000003607f0</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.801442] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.888437] DR3: 0000000000000000 DR6:
00000000fffe0ff0 DR7: 0000000000000400</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8781.975407] Call Trace:</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.006205] [<ffffffff8385c730>]
tty_write_room+0x20/0x30</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.073406] [<ffffffff8385966e>]
process_echoes+0x6e/0x2e0</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.141642] [<ffffffff83b65e92>] ?
mutex_lock+0x12/0x2f</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.206744] [<ffffffff8385c14c>]
n_tty_receive_char+0xd4c/0xe30</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.280188] [<ffffffff8385c3dc>]
n_tty_receive_buf+0x1ac/0x470</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.352569] [<ffffffff8385f1ff>]
flush_to_ldisc+0x10f/0x160</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.421832] [<ffffffff834b9d4f>]
process_one_work+0x17f/0x440</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.493188] [<ffffffff834bade6>]
worker_thread+0x126/0x3c0</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.561412] [<ffffffff834bacc0>] ?
manage_workers.isra.25+0x2a0/0x2a0</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.641074] [<ffffffff834c1c31>]
kthread+0xd1/0xe0</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.700887] [<ffffffff834c1b60>] ?
insert_kthread_work+0x40/0x40</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.775363] [<ffffffff83b74c37>]
ret_from_fork_nospec_begin+0x21/0x21</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8782.855038] [<ffffffff834c1b60>] ?
insert_kthread_work+0x40/0x40</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
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</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8783.165634] RIP [<ffffffff83874b73>]
uart_write_room+0x13/0x50</span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8783.238184] RSP <ffff9707f444bc60></span><br>
<span
style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">[
8783.281471] CR2: 0000000000000150</span></font></span></p>
<p class="MsoNormal" style="margin:0in 0in
0.0001pt;font-size:11pt"><span
style="font-size:10.5pt;color:rgb(51,51,51);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><font
face="tahoma, sans-serif"> </font></span></p>
<p class="MsoNormal" style="margin:0in 0in
0.0001pt;font-size:11pt"><span
style="font-size:10.5pt;color:rgb(51,51,51);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><font
face="arial, sans-serif"> </font></span></p>
<p class="MsoNormal" style="margin:0in 0in
0.0001pt;font-size:11pt"><font face="arial,
sans-serif"><span
style="font-size:10.5pt;color:rgb(51,51,51);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">While
going through the list of cases on centos, we
found this similar case - </span><a
href="https://bugs.centos.org/view.php?id=14265#history"
style="color:rgb(5,99,193)" target="_blank"
moz-do-not-send="true">https://bugs.centos.org/view.php?id=14265#history</a>.
However, there has been no activity on it since
long. </font></p>
<p class="MsoNormal" style="margin:0in 0in
0.0001pt;font-size:11pt"><font face="arial,
sans-serif">Can you please help us out to find out
if there is an ongoing fix for it?</font></p>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
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</pre>
</blockquote>
<br>
</div>
</blockquote>
</div>
</blockquote>
<br>
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