Re: margay fails assertion in stats/dsa/dsm code

Am 28.06.2022 um 08:27 schrieb Thomas Munro:
> On Fri, Jun 3, 2022 at 12:05 PM Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
>> BF animal margay (a newly started Solaris 11.4/Sparc/GCC 11.2 box) is
>> sometimes failing with:
>>
>> TRAP: FailedAssertion("seg->mapped_address != NULL", File: "dsm.c",
>> Line: 1069, PID: 9038)
>
> I spent some time on the GCC farm machine gcc211 (Sol 11.3, GCC 5.5),
> but could not repro this. It's also not happening on wrasse (Sol
> 11.3, Sun Studio compiler). I don't have access to a Sol 11.4
> CBE/Sparc system like margay, but I have learned that CBE is the name
> of a very recently announced rolling release intended for open source
> developers[1]. I still have no idea if the active thing here is
> Sparc, Sol 11.4, "CBE", GCC 11.2 or just timing conditions that reveal
> bugs in our dsm/dsa/dshash/pgstat code that show up here in about 1/4
> of make check runs on this stack, but miraculously nowhere else.
> Perhaps margay's owner could shed some light, or has a way to provide
> ssh access to a similar zone with a debugger etc installed?
>
> [1] https://blogs.oracle.com/solaris/post/announcing-the-first-oracle-solaris-114-cbe

Looks like a timing issue for me, because it happens only sometimes.
No problems with versions 14 and 13.

I can provide ssh access to this system.