> On Mar 13, 2023, at 12:16 PM, Peter J. Holzer <hjp-pg...@hjp.at> wrote: > > On 2023-03-13 09:55:50 -0800, Israel Brewster wrote: >> On Mar 13, 2023, at 9:43 AM, Peter J. Holzer <hjp-pg...@hjp.at> wrote: > The syslog should contain a list of all tasks prior to the kill. For > example, I just provoked an OOM kill on my laptop and the syslog > contains (among lots of others) these lines: > > Mar 13 21:00:36 trintignant kernel: [112024.084117] [ 2721] 126 2721 > 54563 2042 163840 555 -900 postgres > Mar 13 21:00:36 trintignant kernel: [112024.084123] [ 2873] 126 2873 > 18211 85 114688 594 0 postgres > Mar 13 21:00:36 trintignant kernel: [112024.084128] [ 2941] 126 2941 > 54592 1231 147456 565 0 postgres > Mar 13 21:00:36 trintignant kernel: [112024.084134] [ 2942] 126 2942 > 54563 535 143360 550 0 postgres > Mar 13 21:00:36 trintignant kernel: [112024.084139] [ 2943] 126 2943 > 54563 1243 139264 548 0 postgres > Mar 13 21:00:36 trintignant kernel: [112024.084145] [ 2944] 126 2944 > 54798 561 147456 545 0 postgres > Mar 13 21:00:36 trintignant kernel: [112024.084150] [ 2945] 126 2945 > 54563 215 131072 551 0 postgres > Mar 13 21:00:36 trintignant kernel: [112024.084156] [ 2956] 126 2956 > 18718 506 122880 553 0 postgres > Mar 13 21:00:36 trintignant kernel: [112024.084161] [ 2957] 126 2957 > 54672 269 139264 546 0 postgres > > That's less helpful than it could be since all the postgres processes > are just listed as "postgres" without arguments. However, it is very > likely that the first one is actually the postmaster, because it has the > lowest pid (and the other pids follow closely) and it has an OOM score > of -900 as set in the systemd service file. > > So I could compare the PID of the killed process with this list (in my > case the killed process wasn't one of them but a test program which just > allocates lots of memory).
Oh, interesting. I had just greped for ‘Killed process’, so I didn’t see those preceding lines 😛 Looking at that, I see two things: 1) The entries in my syslog all refer to an R process, not a postgresql process at all 2) The ‘Killed process’ entry *does* actually have the process name in it - it’s just since the process name was “R”, I wasn’t making the connection 😄 > > hp > > -- > _ | Peter J. Holzer | Story must make more sense than reality. > |_|_) | | > | | | h...@hjp.at <mailto:h...@hjp.at> | -- Charles Stross, > "Creative writing > __/ | http://www.hjp.at/ | challenge!"
