On 2021/01/27 09:03, Bryan Steele wrote:
> On Wed, Jan 27, 2021 at 07:11:49AM +0100, alf wrote:
> > Hello,
> >
> > while trying to upgrade one of our machines to 6.8 we experienced a
> > repeatable crash while booting (bsd.rd + install went fine).
> >
> > The machine in question is a:
> > ...
> > hw.vendor=HP
> > hw.product=ProLiant DL360 G7
> > hw.serialno=CZ3451KJW6
> > hw.uuid=36333337-3738-435a-3334-35314b4a5736
> > hw.physmem=8562860032
> > hw.usermem=8562847744
> > hw.ncpufound=12
> > hw.allowpowerdown=1
> > hw.perfpolicy=manual
> > hw.smt=0
> > hw.ncpuonline=6
> > ...
> >
> > Since this is a production machine we downgraded to 6.7 (upgrade from
> > 6.6 which it was running before went flawlessly).
> >
> > Find below the dmesg of the 6.8 kernel, 6.8-current and finally the
> > 6.7 kernel. For the 6.8* I also provided 'trace' and 'show registers'
> > output.
> >
> > I hope this is enough info to get an idea of what was going on.
> > I'll happily will provide additional info if needed.
> >
> > Alf
> >
> > [SNIP]
> > ...
> > radeondrm0: RV100
> > NMI ... going to debugger
>
> The machine did not panic, instead it received an NMI (non-maskable
> interrupt), this could be a sign of hardware failure.
radeondrm was updated in the 6.7 -> 6.8 window too. I wonder if it still
occurs with radeondrm disabled. alf, if you have time to test, you can
at least see if a kernel boots without updating the rest of the OS; fetch
a 6.8 bsd.mp on the existing system (e.g. as /bsd.mp.68), reboot, at
the boot loader prompt "boot -c bsd.mp.68", "disable radeondrm", "quit".
> -Bryan.
>
> > Stopped at tsc_delay+0x66: rdtsc
> > ddb{0}> trace
> > tsc_delay(1) at tsc_delay+0x66
> > r100_ring_test(ffff8000001a5000,ffff8000001a6938) at r100_ring_test+0x228
> > r100_cp_init(ffff8000001a5000,100000) at r100_cp_init+0x499
> > r100_startup(ffff8000001a5000) at r100_startup+0x457
> > r100_init(ffff8000001a5000) at r100_init+0x3f8
> > radeon_device_init(ffff8000001a5000,ffff800000198800,ffff800000198850,840001)
> > a
> > t radeon_device_init+0x963
> > radeondrm_attachhook(ffff8000001a5000) at radeondrm_attachhook+0x36
> > config_process_deferred_mountroot() at
> > config_process_deferred_mountroot+0x6b
> > main(0) at main+0x733
> > end trace frame: 0x0, count: -9
> > ddb{0}> shw ow registers
> > rdi 0x1
> > rsi 0x45d5418924
> > rbp 0xffffffff82520cd0 end+0x120cd0
> > rbx 0xc8000400
> > rdx 0x4500000000
> > rcx 0xa6a
> > rax 0x1fe
> > r8 0x5
> > r9 0x7f7fffffc000
> > r10 0xda85623203c11f01
> > r11 0xd6f674e06cf62a5b
> > r12 0xcafedead
> > r13 0xffff8000001a54c0
> > r14 0xffff8000001a5000
> > r15 0x1
> > rip 0xffffffff81131ec6 tsc_delay+0x66
> > cs 0x8
> > rflags 0x283
> > rsp 0xffffffff82520cc0 end+0x120cc0
> > ss 0x10
> > tsc_delay+0x66: rdtsc
> > ddb{0}> re boot rebvoo oot
> > rebooting...
>
