Date: Fri, 03 Apr 2026 10:27:58 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 294039] databases/postgresql14-server: jemalloc crashes triggered by autovacuum Message-ID: <bug-294039-227-NN3MSv5dTm@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-294039-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294039 --- Comment #6 from Peter Much <pmc@citylink.dinoex.sub.org> --- I have now run the system for three days without further crash, after reverting the FreeBSD-EN-26:03.vm efix. Then I have re-activated FreeBSD-EN-26:03.vm, and just got another jemalloc crash. Since it looks to me like there are some un-zeroed pages appearing which probably should be zeroed, I also have added two printf to the fix, in order to get some insight into the difference in behaviour: --- a/sys/vm/vm_fault.c +++ b/sys/vm/vm_fault.c @@ -1207,6 +1207,12 @@ vm_fault_zerofill(struct faultstate *fs) /* * Zero the page if necessary and mark it valid. */ + if (((fs->m->flags & PG_ZERO) == 0) && !(fs->m_needs_zeroing)) { + printf("PMc: KERNEL ALERT page should be zeroed, but will not\n"); + } + if (((fs->m->flags & PG_ZERO) != 0) && (fs->m_needs_zeroing)) { + printf("PMc: KERNEL INFO page would not be zeroed, but will\n"); + } if (fs->m_needs_zeroing) { pmap_zero_page(fs->m); } else { And the output looks like this: Apr 3 02:40:34 <kern.crit> edge kernel: [7678] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 02:40:34 <kern.crit> edge kernel: [7678] PMc: KERNEL INFO page would not be zeroed, but will Apr 3 02:40:34 <kern.crit> edge kernel: [7678] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 03:29:55 <kern.crit> edge kernel: [10639] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 04:49:52 <kern.crit> edge kernel: [15437] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 06:18:01 <kern.crit> edge kernel: [20725] PMc: KERNEL INFO page would not be zeroed, but will Apr 3 06:58:27 <kern.crit> edge kernel: [23151] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 07:01:09 <kern.crit> edge kernel: [23313] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 07:03:18 <kern.crit> edge kernel: [23442] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 07:27:09 <kern.crit> edge kernel: [24874] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 07:27:09 <kern.crit> edge kernel: [24874] PMc: KERNEL INFO page would not be zeroed, but will Apr 3 11:09:41 <kern.crit> edge kernel: [38225] PMc: KERNEL INFO page would not be zeroed, but will Apr 3 11:09:41 <kern.crit> edge kernel: [38225] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 11:09:41 <kern.crit> edge kernel: [38225] PMc: KERNEL INFO page would not be zeroed, but will Apr 3 11:09:41 <kern.crit> edge kernel: [38225] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 11:09:41 <kern.crit> edge kernel: [38225] PMc: KERNEL INFO page would not be zeroed, but will Apr 3 11:09:41 <kern.crit> edge kernel: [38225] PMc: KERNEL ALERT page should be zeroed, but will not Apr 3 11:09:41 <kern.info> edge kernel: [38225] pid 3380 (postgres), jid 5, uid 770: exited on signal 11 (core dumped) I am now adding the group that approved D53891 to this PR. -- You are receiving this mail because: You are the assignee for the bug.home | help
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