panic: data storage interrupt trap when building world on PowerMac G5

[Michael Tuexen]

> On 24. Jan 2020, at 13:27, Francis Little <oggy at farscape.co.uk> wrote:
> 
> I'm not getting panics, I get similar errors to this:
I see. Thanks for providing the information. 
I haven't seen such problems (neither userland nor kernelland) on Power9.

Best regards
Michael
> 
> cc: error: unable to execute command: Abort trap (core dumped)
> cc: error: clang frontend command failed due to signal (use -v to see invocation)
> FreeBSD clang version 9.0.1 (git at github.com:llvm/llvm-project.git c1a0a213378a458fbea1a5c77b315c7dce08fd05) (based on LLVM 9.0.1)
> Target: powerpc64-unknown-freebsd13.0
> Thread model: posix
> InstalledDir: /usr/bin
> cc: note: diagnostic msg: PLEASE submit a bug report to https://bugs.freebsd.org/submit/ and include the crash backtrace, preprocessed source, and associated run script.
> cc: note: diagnostic msg: 
> ********************
> 
> PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
> Preprocessed source(s) and associated run script(s) are located at:
> cc: note: diagnostic msg: /tmp/addsf3-67691f.c
> cc: note: diagnostic msg: /tmp/addsf3-67691f.sh
> cc: note: diagnostic msg: 
> 
> ********************
> *** [addsf3.o] Error code 254
> 
> make[4]: stopped in /usr/src/lib/libcompiler_rt
> 1 error
> 
> make[4]: stopped in /usr/src/lib/libcompiler_rt
> *** [lib/libcompiler_rt__PL] Error code 2
> 
> make[3]: stopped in /usr/src
> 1 error
> 
> make[3]: stopped in /usr/src
> *** [libraries] Error code 2
> 
> make[2]: stopped in /usr/src
> 1 error
> 
> make[2]: stopped in /usr/src
> *** [_libraries] Error code 2
> 
> make[1]: stopped in /usr/src
> 1 error
> 
> make[1]: stopped in /usr/src
> *** [buildworld] Error code 2
> 
> make: stopped in /usr/src
> 
> make: stopped in /usr/src
> 
> On Thu, 23 Jan 2020 at 21:21, Michael Tuexen <Michael.Tuexen at macmic.franken.de> wrote:
> > On 23. Jan 2020, at 22:09, Francis Little <oggy at farscape.co.uk> wrote:
> > 
> > Hi,
> > 
> > Same here, with smp enabled, fans go full speed every 60 sec, probing
> > sysctl calms them for a min.
> > 
> > buf*daemons time out shutting down and buildworlds fail.
> Could you specify how buildworlds fail? Is the system panic'ing like mine?
> On a Power9 system, buildworld works without a problem. But the system has
> much more memory.
> 
> Best regards
> Michael
> > 
> > Regards
> > 
> > 
> > 
> > On Thu, 23 Jan 2020 at 19:41, Justin Hibbits <chmeeedalf at gmail.com> wrote:
> > 
> >> On Thu, 23 Jan 2020 12:32:03 +0100
> >> Michael Tuexen <tuexen at freebsd.org> wrote:
> >> 
> >>> Dear all,
> >>> 
> >>> when trying to build world on a G5 with SMP disabled
> >>> (kern.smp.disabled=1 in /boot/loader.conf), I get the following panic:
> >>> 
> >>> http://bsd14.fh-muenster.de/crash.jpeg
> >>> 
> >>> It looks like this happens when memory is getting low (top was
> >>> running until the machine panics). The machine runs the kernel from
> >>> r356950.
> >>> 
> >>> Any idea what is going wrong?
> >>> 
> >>> Best regards
> >>> Michael
> >> 
> >> That fault address looks very suspicious.  Reading it as hex encoding
> >> of ASCII we get " user ad".
> >> 
> >> Is there a reason you still have kern.smp.disabled=1?  I fixed the bug
> >> for that (at least in head) back around May, or at least *a* bug for it.
> >> 
> >> - Justin
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