Re: 6.0.0-RC kernels trigger Firefox snap bug with 6.0.0-rc3 through 6.0.0-rc7

[Thorsten Leemhuis]

Hi, this is your Linux kernel regression tracker.

For the impatient: please shoot if you have a vague idea why 6.0 might
cause error messages like these when running firefox via snap:

> /bin/bash: /lib/x86_64-linux-gnu/libdl.so.2: unsupported version 0 of Verdef record
> /bin/bash: error while loading shared libraries: /lib/x86_64-linux-gnu/libdl.so.2: unsupported version 0 of Verneed record 

Anyway, moving on.

CCing Marc, who's also affected, and the regression mailing list, as it
should be in the loop for all regressions, as explained here:
https://www.kernel.org/doc/html/latest/admin-guide/reporting-issues.html

On 27.09.22 19:57, Mirsad Goran Todorovac wrote:
> 
> This is my first kernel BUG report,

Many thx for your report!

> so please bear with me for a while
> if I'm doing something wrong or otherwise awkward.
> I've noticed it in the 6.0.0-rc3 kernel

So rc2 was working fine for you?

> and following patches to see if it will be fixed by other testers.
> 
> I've read the bug report instructions, so I hope this will be useful.

These?
https://docs.kernel.org/admin-guide/reporting-issues.html

Just wondering, as then I maybe should make it clearer that sending a
report to just the mainling list is a bad idea, as nearly nobody will
see this.

> However, now we are at rc7, so keeping it for myself when the kernel is
> near production state might be an offence to good conscience.

> In particular, it is the problem with Firefox 104.x and 105.x, which has
> tabs crashing, and later it refuses to restart.
> 
> Exactly the same config works with the other Linux kernels tried (5.15.x
> and 5.19.x) on the Ubuntu 22.04 system.
> 
> Firefox is a snap. The bug persisted with apparmor ON and OFF.

> The kernel is compiled with KMEMLEAK and KASAN options, but otherwise it
> is the default config file for Ubuntu's rc3 release candidate.

Hmm. I have no idea at all what kernel change might cause this and hence
don't know whom to ask to look into this. What really would help
tremendously: if someone could bisect the problem with a vanilla kernel.

Here is a rough guide (hopefully I sooner or later find time to write
one that is more user-friedly):
https://docs.kernel.org/admin-guide/bug-bisect.html

> Here is the syslog of the startup.
> 
> Please find dmesg output. It is rather similar to the dmesg output of
> production kernels.
> 
> /var/log/syslog:
> 
> Sep 27 18:43:20 IdeaPad-3 firefox_firefox.desktop[5811]: message
> repeated 11 times: [ /snap/firefox/1883/usr/lib/firefox/firefox:
> /snap/firefox/1883/usr/lib/firefox/firefox: no version information
> available (required by
> /snap/firefox/1883/usr/lib/firefox/libmozsandbox.so)]
> Sep 27 18:43:20 IdeaPad-3 firefox_firefox.desktop[5811]:
> /snap/firefox/1883/usr/lib/firefox/firefox:
> /lib/x86_64-linux-gnu/libpthread.so.0: version `' not found (required by
> /snap/firefox/1883/usr/lib/firefox/libmozsandbox.so)
> Sep 27 18:43:20 IdeaPad-3 firefox_firefox.desktop[5811]:
> /snap/firefox/1883/usr/lib/firefox/firefox:
> /lib/x86_64-linux-gnu/librt.so.1: version `' not found (required by
> /snap/firefox/1883/usr/lib/firefox/libmozsandbox.so)
> Sep 27 18:43:20 IdeaPad-3 firefox_firefox.desktop[5811]:
> /snap/firefox/1883/usr/lib/firefox/firefox:
> /lib/x86_64-linux-gnu/libdl.so.2: version `' not found (required by
> /snap/firefox/1883/usr/lib/firefox/libmozsandbox.so)
> Sep 27 18:43:27 IdeaPad-3 firefox_firefox.desktop[2686]: Missing chrome
> or resource URL: resource://gre/modules/UpdateListener.sys.mjs
> Sep 27 18:43:31 IdeaPad-3 firefox_firefox.desktop[2921]:
> /snap/firefox/1883/usr/lib/firefox/firefox: symbol lookup error:
> /snap/firefox/1883/usr/lib/firefox/libmozsandbox.so: undefined symbol: ,
> version
> Sep 27 18:43:33 IdeaPad-3 systemd[1791]:
> snap.firefox.firefox.8b8574d2-116e-411a-9bba-c145e8cc0aa2.scope:
> Consumed 10min 18.279s CPU time.
> Sep 27 18:44:49 IdeaPad-3 snapd[818]: storehelpers.go:748: cannot
> refresh: snap has no updates available: "bare", "canonical-livepatch",
> "core", "core18", "core20", "firefox", "gnome-3-34-1804",
> "gnome-3-38-2004", "gtk-common-themes", "slack", "snap-store", "snapd",
> "zoom-client"
> Sep 27 19:04:59 IdeaPad-3 systemd[1791]: Started
> snap.firefox.firefox.d0067088-10d8-459d-a40d-fed0c95b1481.scope.
> Sep 27 19:05:04 IdeaPad-3 systemd[1791]:
> snap.firefox.firefox.d0067088-10d8-459d-a40d-fed0c95b1481.scope:
> Consumed 4.239s CPU time.
> Sep 27 19:05:41 IdeaPad-3 systemd[1791]: Started
> snap.firefox.firefox.c93d07ee-bee6-492d-aa89-2e27db5d5ae7.scope.
> Sep 27 19:05:42 IdeaPad-3 systemd[1791]:
> snap.firefox.firefox.c93d07ee-bee6-492d-aa89-2e27db5d5ae7.scope:
> Consumed 1.256s CPU time.
> Sep 27 19:06:39 IdeaPad-3 systemd[1791]: Started
> snap.firefox.firefox.b4550475-1ff8-41ee-9a39-305174eeaa44.scope.
> Sep 27 19:06:41 IdeaPad-3 systemd[1791]:
> snap.firefox.firefox.b4550475-1ff8-41ee-9a39-305174eeaa44.scope:
> Consumed 1.231s CPU time.
> Sep 27 19:06:55 IdeaPad-3 systemd[1791]: Started
> snap.firefox.firefox.c42cb676-a7a7-49e6-8685-610bd9c1de81.scope.
> 
> $ sudo dmesg -l err
> [    1.638759] ACPI BIOS Error (bug): Could not resolve symbol
> [\_SB.PCI0], AE_NOT_FOUND (20220331/dswload2-162)
> [    1.638854] ACPI Error: AE_NOT_FOUND, During name lookup/catalog
> (20220331/psobject-220)
> [    2.175611] ACPI BIOS Error (bug): Could not resolve symbol
> [\_SB.PC00.DGPV], AE_NOT_FOUND (20220331/psargs-330)
> [    2.175731] ACPI Error: Aborting method \_SB.PC00.PEG0.PCRP._ON due
> to previous error (AE_NOT_FOUND) (20220331/psparse-529)
> [    5.519037] integrity: Problem loading X.509 certificate -65
> [   10.010679] mtd device must be supplied (device name is empty)
> [   12.220863] i801_smbus 0000:00:1f.4: Transaction timeout
> [   12.222934] i801_smbus 0000:00:1f.4: Failed terminating the transaction
> [   12.223023] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!
> [   13.092867] rcu: INFO: rcu_preempt detected expedited stalls on
> CPUs/tasks: { 3-.... } 6 jiffies s: 61 root: 0x8/.
> [   13.092878] rcu: blocking rcu_node structures (internal RCU debug):
> [   13.991053] mtd device must be supplied (device name is empty)
> [   15.315968] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
> [   18.018388] ACPI BIOS Error (bug): Could not resolve symbol
> [\_TZ.ETMD], AE_NOT_FOUND (20220331/psargs-330)
> [   18.018857] ACPI Error: Aborting method \_SB.IETM._OSC due to
> previous error (AE_NOT_FOUND) (20220331/psparse-529)
> 
> Please find attached the config file for the kernel build. Source is rc7
> "master" clean after rc7 rlse.
> 
> Here is the demonstration of bug with apparmor ON and OFF:
> 
> $ sudo systemctl stop apparmor
> $ firefox &
> [1] 7825
> $ date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: symbol lookup error: date: undefined symbol: , version GLIBC_2.2.5
> chmod: chmod: no version information available (required by chmod)
> chmod: chmod: no version information available (required by chmod)
> chmod: chmod: no version information available (required by chmod)
> chmod: chmod: no version information available (required by chmod)
> chmod: chmod: no version information available (required by chmod)
> chmod: symbol lookup error: chmod: undefined symbol: , version
> xdg-user-dirs-update: error while loading shared libraries:
> xdg-user-dirs-update: unsupported version 0 of Verneed record
> rm: rm: no version information available (required by rm)
> rm: rm: no version information available (required by rm)
> rm: rm: no version information available (required by rm)
> rm: rm: no version information available (required by rm)
> rm: rm: no version information available (required by rm)
> rm: symbol lookup error: rm: undefined symbol: , version GLIBC_2.2.5
> XPCOMGlueLoad error for file
> /snap/firefox/1883/usr/lib/firefox/libmozsandbox.so:
> /lib/x86_64-linux-gnu/libpthread.so.0: version `' not found (required by
> /snap/firefox/1883/usr/lib/firefox/libmozsandbox.so)
> Couldn't load XPCOM.
> 
> [1]+  Exit 255                firefox
> $
> $ sudo systemctl start apparmor
> $ firefox &
> [1] 7996
> $ date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: date: no version information available (required by date)
> date: symbol lookup error: date: undefined symbol: , version GLIBC_2.2.5
> chmod: chmod: no version information available (required by chmod)
> chmod: chmod: no version information available (required by chmod)
> chmod: chmod: no version information available (required by chmod)
> chmod: chmod: no version information available (required by chmod)
> chmod: chmod: no version information available (required by chmod)
> chmod: symbol lookup error: chmod: undefined symbol: , version
> xdg-user-dirs-update: error while loading shared libraries:
> xdg-user-dirs-update: unsupported version 0 of Verneed record
> XPCOMGlueLoad error for file
> /snap/firefox/1883/usr/lib/firefox/libmozsandbox.so:
> /lib/x86_64-linux-gnu/libpthread.so.0: version `' not found (required by
> /snap/firefox/1883/usr/lib/firefox/libmozsandbox.so)
> Couldn't load XPCOM.
> 
> All other apps work OK AFAICS, however I suspected a kernel bug since it
> only shows only in RC kernels
> (even the Ubuntu's own 6.0.0-rc3 mainline build).
> 
> Hope this helps someone. I could provide more info at request.
> 
> Kind regards,
> 
> Mirsad
>
> [config file removed when quoting]

Anyway, to be sure below issue doesn't fall through the cracks
unnoticed, I'm adding it to regzbot, my Linux kernel regression tracking
bot:

#regzbot ^introduced v5.19..v6.0-rc3
#regzbot title Firefox snap fails to run ("undefined symbol" and
"unsupported version 0 of Verneed record" error messages)
#regzbot ignore-activity

This isn't a regression? This issue or a fix for it are already
discussed somewhere else? It was fixed already? You want to clarify when
the regression started to happen? Or point out I got the title or
something else totally wrong? Then just reply -- ideally with also
telling regzbot about it, as explained here:
https://linux-regtracking.leemhuis.info/tracked-regression/

Reminder for developers: When fixing the issue, add 'Link:' tags
pointing to the report (the mail this one replies to), as explained for
in the Linux kernel's documentation; above webpage explains why this is
important for tracked regressions.

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

P.S.: As the Linux kernel's regression tracker I deal with a lot of
reports and sometimes miss something important when writing mails like
this. If that's the case here, don't hesitate to tell me in a public
reply, it's in everyone's interest to set the public record straight.