| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Noah Misch <noah(at)leadboat(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Subject: | Re: Anti-critical-section assertion failure in mcxt.c reached by walsender |
| Date: | 2021-05-07 14:29:58 |
| Message-ID: | 34556.1620397798@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
I wrote:
> 1. No wonder we could not reproduce it anywhere else. I've warned
> the cfarm admins that their machine may be having hardware issues.
I heard back from the machine's admin. The time of the crash I observed
matches exactly to these events in the kernel log:
May 07 03:31:39 gcc202 kernel: dm-0: writeback error on inode 2148294407, offset 0, sector 159239256
May 07 03:31:39 gcc202 kernel: sunvdc: vdc_tx_trigger() failure, err=-11
May 07 03:31:39 gcc202 kernel: blk_update_request: I/O error, dev vdiskc, sector 157618896 op 0x1:(WRITE) flags 0x4800 phys_seg 16 prio class 0
So it's not a mirage. The admin seems to think it might be a kernel
bug though.
regards, tom lane
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