| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | "Peter 'PMc' Much" <pmc(at)citylink(dot)dinoex(dot)sub(dot)org>, Tomas Vondra <tomas(at)vondra(dot)me>, pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Need help debugging SIGBUS crashes |
| Date: | 2026-03-17 21:38:45 |
| Message-ID: | 569843.1773783525@sss.pgh.pa.us |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Andres Freund <andres(at)anarazel(dot)de> writes:
> On 2026-03-17 16:56:48 -0400, Tom Lane wrote:
>> Yeah, it seems likely that there is some additional triggering
>> condition that we don't understand; otherwise there would be more
>> people complaining than just you.
> One issue we've seen in the past (on some other BSD, I think NetBSD?) is
> signal handlers used a C function in a shared library, the function was never
> used before the signal handler, and that dynamic symbol resolution allocated
> memory. Which then contributed to deadlocks and/or corruption of alloctor
> metadata.
Yeah, that sounds familiar. I think I found that while trying to get
PG to run reliably on NetBSD/hppa, but I don't remember any details.
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tomas Vondra | 2026-03-17 21:43:26 | Re: EXPLAIN: showing ReadStream / prefetch stats |
| Previous Message | Jonathan Gonzalez V. | 2026-03-17 21:37:39 | Re: Make PGOAUTHCAFILE in libpq-oauth work out of debug mode |