Re: oops .. looks like the FreeBSD snapshot for 07 Oct 2022 is still a tad fried

From: Dennis Clarke <dclarke_at_blastwave.org>
Date: Mon, 10 Oct 2022 18:06:27 UTC
On 10/10/22 16:48, Mitchell Horne wrote:
> 
> 
> On 10/10/22 00:33, Dennis Clarke wrote:
>>
>> Looking at : https://cgit.freebsd.org/src/log/
>>
>> I see a bunch of goodness from Mitchel Horne there for the
>> pmap_remove_pages() code but the install disk images for
>> FreeBSD CURRENT snapshot still blow up.
>>
>> Are there going to be some new install images soonish?
>> This week maybe?
>>
>> Found 4 CPUs in the device tree
>> Copyright (c) 1992-2022 The FreeBSD Project.
>> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>>          The Regents of the University of California. All rights 
>> reserved.
>> FreeBSD is a registered trademark of The FreeBSD Foundation.
>> FreeBSD 14.0-CURRENT #0 main-n258483-b05b1ecbef0: Fri Oct  7 05:52:47 
>> UTC 2022
>>
>> root@releng1.nyi.freebsd.org:/usr/obj/usr/src/riscv.riscv64/sys/GENERIC riscv 
>>
>> FreeBSD clang version 14.0.5 (https://github.com/llvm/llvm-project.git 
>> llvmorg-14.0.5-0-gc12386ae247c)
>> WARNING: WITNESS option enabled, expect reduced performance.
>> VT: init without driver.
>> Preloaded elf kernel "/boot/kernel/kernel" at 0xffffffc002bff000.
>> Preloaded TSLOG data "TSLOG" at 0xffffffc002c08288.
>> .
>> .
>> .
>> avail memory = 16649957376 (15878 MB)
>> No static device mappings.
>> Starting CPU 2 (hart 0)
>> Starting CPU 3 (hart 1)
>> Starting CPU 1 (hart 3)
>> FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
>> panic: ISA string truncated
> 
> Hi,
> 
> This one is known too. There are some shortcomings with how we handle 
> the ISA string provided by QEMU, that became apparent with the recent 
> update to version 7.1.0.
> 
> Fixing this is a priority for me this week, ideally before the next 
> snapshot build. For progress, subscribe to:
> https://reviews.freebsd.org/D36601
> 
> As a workaround in the meantime, you can downgrade to the qemu6 or 
> qemu70 packages. These versions will not cause this panic.
> 
> Cheers,
> Mitchell

Ah ha ! Had to be QEMU!  I was testing this over and over with Steve
Wills and he had a slightly previous version of QEMU on his FreeBSD 14.0
CURRENT system. I had the very latest ( okay five days ago ) and saw the
panic over and over. For him, everything was working fine. What fun that
was to try to explain.

Thank you for letting me know!


-- 
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
GreyBeard and suspenders optional