Horton

Re: stress test for parallel workers

Tom Lane <tgl@sss.pgh.pa.us>

View thread View on postgr.es
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Andres Freund <andres@anarazel.de>, Andrew Dunstan <andrew.dunstan@2ndquadrant.com>, Mark Wong <mark@2ndquadrant.com>, Justin Pryzby <pryzby@telsasoft.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2020-08-19T16:14:41Z
Lists: pgsql-hackers 
Thomas Munro <thomas.munro@gmail.com> writes:
> On Tue, Jul 28, 2020 at 3:27 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Anyway, I guess the interesting question for us is how long it
>> will take for this fix to propagate into real-world systems.
>> I don't have much of a clue about the Linux kernel workflow,
>> anybody want to venture a guess?

> Me neither.  It just hit Torvalds' tree[1] marked "Cc:
> stable@vger.kernel.org # v2.6.27+".  I looked at the time for a couple
> of other PowerPC-related commits of similar complexity involving some
> of the same names to get from there to a Debian stable kernel package
> and it seemed to be under a couple of months.
> [1] https://github.com/torvalds/linux/commit/63dee5df43a31f3844efabc58972f0a206ca4534

For our archives' sake: today I got seemingly-automated mail informing me
that this patch has been merged into the 4.19-stable, 5.4-stable,
5.7-stable, and 5.8-stable kernel branches; but not 4.4-stable,
4.9-stable, or 4.14-stable, because it failed to apply.

			regards, tom lane

Commits

  1. In the postmaster, rely on the signal infrastructure to block signals.

  2. Paper over regression failures in infinite_recurse() on PPC64 Linux.

  3. Hack pg_ctl to report postmaster's exit status.

  4. Re-order some regression test scripts for more parallelism.