Thanks for the quick reply. You're probably correct about a hardware issue. This system is getting long in the tooth. Panic occurs if I run a few very intensive floating point computations. Console logs do not show anything unusual. I need to go investigate how to up BMC.
-- steve On Fri, Jun 27, 2025 at 04:52:53PM -0400, Alexander Motin wrote: > Hi. > > It is likely a hardware failure, unless a false positive. Check last > console logs or better BMC logs for detail. > > On Fri, Jun 27, 2025, 16:26 Steve Kargl <[email protected]> > wrote: > > > Never seen this type of panic. I can upload > > core.txt.4 and info.4 to freefall if someone > > wants more details. > > > > > > __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57 > > 57 __asm("movq %%gs:%c1,%0" : "=r" (td) > > (kgdb) #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57 > > td = <optimized out> > > #1 doadump (textdump=textdump@entry=1) > > at /usr/src/sys/kern/kern_shutdown.c:399 > > error = 0 > > coredump = <optimized out> > > #2 0xffffffff80676e30 in kern_reboot (howto=260) > > at /usr/src/sys/kern/kern_shutdown.c:519 > > once = 0 > > __pc = 0x0 > > #3 0xffffffff80677367 in vpanic ( > > fmt=0xffffffff80abdb94 "Unrecoverable machine check exception", > > ap=ap@entry=0xfffffe001c024ed0) at > > /usr/src/sys/kern/kern_shutdown.c:974 > > buf = "Unrecoverable machine check exception", '\000' <repeats 218 > > times> > > __pc = 0x0 > > __pc = 0x0 > > __pc = 0x0 > > other_cpus = {__bits = {251, 0 <repeats 15 times>}} > > td = 0xfffff80004601000 > > bootopt = <unavailable> > > newpanic = <optimized out> > > #4 0xffffffff80677193 in panic (fmt=<unavailable>) > > at /usr/src/sys/kern/kern_shutdown.c:887 > > ap = {{gp_offset = 8, fp_offset = 48, > > overflow_arg_area = 0xfffffe001c024f00, > > reg_save_area = 0xfffffe001c024ea0}} > > #5 0xffffffff809d391b in mca_intr () at /usr/src/sys/x86/x86/mca.c:1540 > > recoverable = false > > mcg_status = <optimized out> > > count = <optimized out> > > lmcs = <optimized out> > > #6 <signal handler called> > > No locals. > > #7 mi_switch (flags=flags@entry=262) at > > /usr/src/sys/kern/kern_synch.c:537 > > __pc = 0x0 > > __pc = 0x0 > > __pc = 0x0 > > __pc = 0x0 > > __pc = 0x0 > > td = 0xfffff80004601000 > > new_switchtime = <optimized out> > > runtime = <optimized out> > > #8 0xffffffff806aaca4 in sched_idletd (dummy=dummy@entry=0x0) > > at /usr/src/sys/kern/sched_4bsd.c:1688 > > __pc = 0x0 > > stat = <optimized out> > > #9 0xffffffff806324b2 in fork_exit ( > > callout=0xffffffff806aac50 <sched_idletd>, arg=0x0, > > frame=0xfffffe00d5407f40) at /usr/src/sys/kern/kern_fork.c:1153 > > __pc = 0x0 > > __pc = 0x0 > > td = 0xfffff80004601000 > > p = 0xfffffe00c3002040 > > dtd = <optimized out> > > #10 <signal handler called> > > > > > > > > > > > > > > -- > > Steve > > > > -- > Alexander Motin -- Steve
