When this crash occurs, it seems to try to reboot the system, but never does successfully. It will show LOGIN: but the UI never starts and I can't connect via the IP or via PuTTY.
Here is a subset of the error reporting from syslog immediately after the event.
Nov 27 07:38:06 Tower kernel: mce: CMCI storm detected: switching to poll mode
Nov 27 07:38:06 Tower kernel: mce: [Hardware Error]: Machine check events logged
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: HANDLING MCE MEMORY ERROR
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: CPU 0: Machine Check Event: 0 Bank 7: cc04200000010090
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: TSC 3ee1e59de211c
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: ADDR 24be480
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: MISC 142184e86
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: PROCESSOR 0:306e4 TIME 1669556286 SOCKET 0 APIC 0
Nov 27 07:38:06 Tower kernel: EDAC MC0: 4224 CE memory read error on CPU_SrcID#0_Ha#0_Chan#0_DIMM#0 (channel:0 slot:0 page:0x24be offset:0x480 grain:32 syndrome:0x0 - OVERFLOW area:DRAM err_code:0001:0090 socket:0 ha:0 channel_mask:1 rank:1)
Nov 27 07:38:06 Tower kernel: mce: [Hardware Error]: Machine check events logged
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: HANDLING MCE MEMORY ERROR
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: CPU 0: Machine Check Event: 0 Bank 7: cc000f8000010090
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: TSC 3ee1e59e32afc
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: ADDR 2519e00
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: MISC 40181486
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: PROCESSOR 0:306e4 TIME 1669556286 SOCKET 0 APIC 0
Nov 27 07:38:06 Tower kernel: EDAC MC0: 62 CE memory read error on CPU_SrcID#0_Ha#0_Chan#0_DIMM#0 (channel:0 slot:0 page:0x2519 offset:0xe00 grain:32 syndrome:0x0 - OVERFLOW area:DRAM err_code:0001:0090 socket:0 ha:0 channel_mask:1 rank:0)
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: HANDLING MCE MEMORY ERROR
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: CPU 0: Machine Check Event: 0 Bank 7: cc00064000010090
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: TSC 3ee1e59e4c06c
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: ADDR 12b60bb40
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: MISC 4218ca86
Nov 27 07:38:06 Tower kernel: EDAC sbridge MC0: PROCESSOR 0:306e4 TIME 1669556286 SOCKET 0 APIC 0
I've attached a file with all of the events immediately prior, during, and after this error starts.
Crash Log 27 Nov.txt