unable to boot kernel 6.2.0-32

[kalpana]

Hi guys,
I have a bit of an unusual problem. My kernel updated recently, from 6.2.0-31 to 6.2.0-32 (I think), and the system will not fully boot up from the grub menu with the most recent kernel.
If I go to advanced options from the grub menu, then select the previous kernel, (6.2.0-31), it seems to work fine.

I cannot copy and paste, or take a screen shot, during the bootup process, but I do remember seeing something about kernel null pointer.
There was also something about processes involving userspace out-of-memory process killer, timy syncronization, and network name resolution not being completed.
After booting with the older kernel, I did perform the following commands:

Code:

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systemctl status systemd-timesyncd.service

systemctl status systemd-oomd.service

systemctl status systemd-resolved.service
which gave the following output:

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● systemd-timesyncd.service - Network Time Synchronization
     Loaded: loaded (/lib/systemd/system/systemd-timesyncd.service; enabled; vendor preset: enabled)
     Active: active (running) since Fri 2023-09-08 23:43:31 EDT; 5min ago
       Docs: man:systemd-timesyncd.service(8)
   Main PID: 505 (systemd-timesyn)
     Status: "Initial synchronization to time server [2620:2d:4000:1::41]:123 (ntp.ubuntu.com)."
      Tasks: 2 (limit: 18809)
     Memory: 1.4M
        CPU: 89ms
     CGroup: /system.slice/systemd-timesyncd.service
             └─505 /lib/systemd/systemd-timesyncd

Sep 08 23:43:31 dynabook-TECRA-A50-F systemd[1]: Starting Network Time Synchronization...
Sep 08 23:43:31 dynabook-TECRA-A50-F systemd[1]: Started Network Time Synchronization.
Sep 08 23:44:02 dynabook-TECRA-A50-F systemd-timesyncd[505]: Initial synchronization to time server [2620:2d:4000:1::41]:123 (ntp.ubuntu.com).
● systemd-oomd.service - Userspace Out-Of-Memory (OOM) Killer
     Loaded: loaded (/lib/systemd/system/systemd-oomd.service; enabled; vendor preset: enabled)
     Active: active (running) since Fri 2023-09-08 23:43:31 EDT; 5min ago
       Docs: man:systemd-oomd.service(8)
   Main PID: 499 (systemd-oomd)
     Status: "Processing requests..."
      Tasks: 1 (limit: 18809)
     Memory: 1.4M (min: 64.0M low: 64.0M)
        CPU: 532ms
     CGroup: /system.slice/systemd-oomd.service
             └─499 /lib/systemd/systemd-oomd

Sep 08 23:43:31 dynabook-TECRA-A50-F systemd[1]: Starting Userspace Out-Of-Memory (OOM) Killer...
Sep 08 23:43:31 dynabook-TECRA-A50-F systemd[1]: Started Userspace Out-Of-Memory (OOM) Killer.
● systemd-resolved.service - Network Name Resolution
     Loaded: loaded (/lib/systemd/system/systemd-resolved.service; enabled; vendor preset: enabled)
     Active: active (running) since Fri 2023-09-08 23:43:32 EDT; 6min ago
       Docs: man:systemd-resolved.service(8)
             man:org.freedesktop.resolve1(5)
             https://www.freedesktop.org/wiki/Sof...ation-managers
             https://www.freedesktop.org/wiki/Sof...solver-clients
   Main PID: 501 (systemd-resolve)
     Status: "Processing requests..."
      Tasks: 1 (limit: 18809)
     Memory: 9.5M
        CPU: 177ms
     CGroup: /system.slice/systemd-resolved.service
             └─501 /lib/systemd/systemd-resolved

Sep 08 23:43:31 dynabook-TECRA-A50-F systemd[1]: Starting Network Name Resolution...
Sep 08 23:43:31 dynabook-TECRA-A50-F systemd-resolved[501]: Positive Trust Anchors:
Sep 08 23:43:31 dynabook-TECRA-A50-F systemd-resolved[501]: . IN DS 20326 8 2 e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d
Sep 08 23:43:31 dynabook-TECRA-A50-F systemd-resolved[501]: Negative trust anchors: home.arpa 10.in-addr.arpa 16.172.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 31.172.in-addr.arpa 168.192.in-addr.arpa d.f.ip6.arpa corp home internal intranet lan local private test
Sep 08 23:43:31 dynabook-TECRA-A50-F systemd-resolved[501]: Using system hostname 'dynabook-TECRA-A50-F'.
Sep 08 23:43:32 dynabook-TECRA-A50-F systemd[1]: Started Network Name Resolution.
Sep 08 23:43:37 dynabook-TECRA-A50-F systemd-resolved[501]: wlp1s0: Bus client set search domain list to: hsd1.mi.comcast.net
Sep 08 23:43:37 dynabook-TECRA-A50-F systemd-resolved[501]: wlp1s0: Bus client set default route setting: yes
Sep 08 23:43:37 dynabook-TECRA-A50-F systemd-resolved[501]: wlp1s0: Bus client set DNS server list to: 75.75.75.75, 75.75.76.76
Sep 08 23:43:39 dynabook-TECRA-A50-F systemd-resolved[501]: wlp1s0: Bus client set DNS server list to: 75.75.75.75, 75.75.76.76, 2001:558:feed::1, 2001:558:feed

Also, here is the output of the command
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vdir /bootCode:

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total 261436
-rw-r--r-- 1 root root   262053 Aug 14 05:05 config-5.15.0-83-generic
-rw-r--r-- 1 root root   275587 Aug 16 05:42 config-6.2.0-31-generic
-rw-r--r-- 1 root root   275587 Aug 18 05:38 config-6.2.0-32-generic
drwx------ 4 root root     4096 Dec 31  1969 efi
drwxr-xr-x 5 root root     4096 Sep  5 21:16 grub
lrwxrwxrwx 1 root root       28 Sep  5 21:15 initrd.img -> initrd.img-5.15.0-83-generic
-rw-r--r-- 1 root root 65684040 Sep  5 21:15 initrd.img-5.15.0-83-generic
-rw-r--r-- 1 root root 69602500 Sep  4 10:56 initrd.img-6.2.0-31-generic
-rw-r--r-- 1 root root 69599829 Sep  5 21:15 initrd.img-6.2.0-32-generic
lrwxrwxrwx 1 root root       27 Sep  5 21:16 initrd.img.old -> initrd.img-6.2.0-32-generic
-rw-r--r-- 1 root root   182800 Feb  6  2022 memtest86+.bin
-rw-r--r-- 1 root root   184476 Feb  6  2022 memtest86+.elf
-rw-r--r-- 1 root root   184980 Feb  6  2022 memtest86+_multiboot.bin
-rw------- 1 root root  6273612 Aug 14 05:05 System.map-5.15.0-83-generic
-rw------- 1 root root  7967590 Aug 16 05:42 System.map-6.2.0-31-generic
-rw------- 1 root root  7969006 Aug 18 05:38 System.map-6.2.0-32-generic
lrwxrwxrwx 1 root root       25 Sep  5 21:15 vmlinuz -> vmlinuz-5.15.0-83-generic
-rw------- 1 root root 11615656 Aug 14 05:07 vmlinuz-5.15.0-83-generic
-rw------- 1 root root 13796616 Aug 16 08:43 vmlinuz-6.2.0-31-generic
-rw------- 1 root root 13791304 Aug 18 05:40 vmlinuz-6.2.0-32-generic
lrwxrwxrwx 1 root root       24 Sep  5 21:15 vmlinuz.old -> vmlinuz-6.2.0-32-generic
I noticed that the sofltlink with the .old suffix is pointing to the most recent kernel.
Not sure if that information helps or not.
My hardware is a Tecra dynabook intel core i7.

Thanks for any insights,
Chopra