topic Bug Report: sh: can't create /proc/softlockup/cancel: nonexistent directory in ICX Switches

Bug Report: sh: can't create /proc/softlockup/cancel: nonexistent directory

GreensTheorem — Mon, 29 Jan 2024 11:14:57 GMT

Hi,

I have the following bug to report.

Platform:

Copyright (c) Ruckus Networks, Inc. All rights reserved. UNIT 1: compiled on Aug 8 2023 at 22:37:59 labeled as SWR08095m (30264164 bytes) from Primary SWR08095m.bin (UFI) SW: Version 08.0.95mT203 Compressed Primary Boot Code size = 1835520, Version:10.1.19T205 (swz10119) Compiled on Tue Feb 2 11:21:16 2021 HW: Stackable ICX7750-48F

When attempting to execute

username super nopassword

The switch crashes

ICX7750-48F Router(config)#username super nopassword sh: can't create /proc/softlockup/cancel: nonexistent directory stack: 133c39b0 1123f650 112b530c 1146273c 114640fc 1146517c 11463f34 1146517c 11463f34 113689a8 102eaac8 102e18b8 113d8aa4 106cd764 113d9cac 10035078 13388020 133d300c Tuning CFS scheduler parameters... Compressing Console file Copying fitrace errorlog file to flash CORE_PATTERN:PID=1153 UID=0 GID=0 sig=11 Tue Aug 8 23:30:35 UTC 2023: Dumping core file to /tmp.gz, this will take couple of minutes ... [ 128.327254] WDG_INFO: Coredump Task is running, Pid: 1321, Name: coredump_utilit, Probe Time: 1691537474

(Ignore the time, it's not set).

I can provide the core dump, if required. I do not have a support contract, so I cannot open a support case.

Re: Bug Report: sh: can't create /proc/softlockup/cancel: nonexistent directory

Chandini — Wed, 31 Jan 2024 15:56:49 GMT

Hi GreensTheorem

Thank you for reaching us.

Thank you for pointing out the issue you encountered with the switch.

I tried this in a different model switch 7850-48F running 8095m version. And looks like you are right it is crashing. Below is the output from Lab switch.

ICX7850-48F Router(config)#username super nopassword
nopassword No password is required for the user to log in
GENERIC: 8F Router(config)#username super nopassword
UTILS: stack: f6a62cf0 f6caea60 f6bbc750 f6a31ee1 0161196c 01835034 0184aa5c 0184c9bc 0184acc4 0184c9bc 0184acc4 0170c550 00094fc4 0008c220 017a1bf4 0051ce28 017a2b8c f6bb9348 f70145cf
Application received signal -> SIGNUM#11
Tuning CFS scheduler parameters...
Compressing Console file
CORE_PATTERN:PID=450 !usr!local!bin!FastIron UID=0 GID=0 sig=11
Sat Aug 12 09:27:46 UTC 2023: Dumping core file to /tmp.gz, this will take couple of minutes ...
[ 152.144294] [BrcdSoftlockup]: sim_softwatchdog thread is detached on core=0

Sat Aug 12 09:28:06 UTC 2023: Core file collected as /tmp.gz, processing the core file ...
seq 1
Sat Aug 12 09:28:06 UTC 2023: Calculating checksum core_450_FastIron-2_2023-08-12_09-28-06.gz
Sat Aug 12 09:28:07 UTC 2023: Checking integrity of core_450_FastIron-2_2023-08-12_09-28-06.gz

localhost login: super
Password:
login[1669]: pam_unix(login:auth): check pass; user unknown
login[1669]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=ttyS0 ruser= rhost=

Sat Aug 12 09:28:15 UTC 2023: Moving core_450_FastIron-2_2023-08-12_09-28-06.gz of size 16484 KB to flash, with available space of 2518724 KB...
login[1669]: pam_authenticate call failed: User not known to the underlying authentication module (10)

What is I noticed is the switch crashes and comes up fine but when you execute the command the switch will reboot.

I also checked on version 10.0.10b and command "username super nopassword" is removed. So from 9010 and above it is mandatory to set a password.

Could you help me with below details :

What about if you try to set a password ? Is there a issue noticed ? and when you try executing other commands on the switch , is there a problem ?
Is the switch you notice issue in stack or standalone ?

Thanks

Re: Bug Report: sh: can't create /proc/softlockup/cancel: nonexistent directory

Chandini — Thu, 01 Feb 2024 17:12:43 GMT

Hi GreensTheorem

We are working on this. Thanks again for pointing out about the problem and reaching us through forums.

Thanks

Re: Bug Report: sh: can't create /proc/softlockup/cancel: nonexistent directory

GreensTheorem — Thu, 08 Feb 2024 09:26:10 GMT

Hi @Chandini

> What about if you try to set a password ? Is there a issue noticed ?

Nope, it's just for "nopassword" - I was trying to temporarily set no password as I was doing some lab work on the switch and was tired of having to log in

> and when you try executing other commands on the switch , is there a problem ?

Nope, all fine

> Is the switch you notice issue in stack or standalone ?

Standalone

> We are working on this. Thanks again for pointing out about the problem and reaching us through forums.

Cool, thanks!

Do you need any more info? But given that you can reproduce it on an ICX7850, I guess you should have everything you need

Re: Bug Report: sh: can't create /proc/softlockup/cancel: nonexistent directory

Chandini — Thu, 08 Feb 2024 12:28:48 GMT

Hi GreensTheorem

Thank you again for sharing the details with us. Since it is reproducible we are working on it.

And thank you again for helping and sharing with us the problem which you encountered while working with the switches and reaching out to us using forums.

Thanks