On Fri, Sep 12, 2025 at 11:04:08AM -0000, Stuart Henderson wrote: > On 2025-09-11, Tom Smyth <[email protected]> wrote: > > Folks, > > has anyone come across an issue with 7.6 and 7.7 OpenBSD where bgpd > > process (the one running as root is running at a high cpu load > > > > see top -S and ps-aux output below, and bgp summary ... > > > > the number of messages seem to be low > > > > there are no errors or unusal messages in /var/log/daemon > > > > load averages: 1.07, 1.02, 0.92 > > ntu-gen4- 20:09:05 > > 68 processes: 66 idle, 2 on processor > > up 0 days > > 00:38:54 > > CPU0 states: 20.9% user, 0.0% nice, 35.2% sys, 2.4% spin, 0.0% > > intr, 41.4% idle > > CPU1 states: 14.9% user, 0.0% nice, 28.5% sys, 0.8% spin, 0.0% > > intr, 55.8% idle > > Memory: Real: 63M/336M act/tot Free: 3554M Cache: 162M Swap: 0K/0K > > > > PID USERNAME PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND > > 10792 root 64 0 1660K 1716K onproc/0 - 38:35 99.02% bgpd > > You might get clues from ktrace: > > ktrace -p 10792; sleep 1; ktrace -C > kdump > somefile >
I suggested the same to Tom and he already provided me with the kdump. The fix for this issue is on tech@ https://marc.info/?l=openbsd-tech&m=175767683506055&w=2 and below -- :wq Claudio Index: pfkey.c =================================================================== RCS file: /cvs/src/usr.sbin/bgpd/pfkey.c,v diff -u -p -r1.72 pfkey.c --- pfkey.c 27 Feb 2025 14:03:32 -0000 1.72 +++ pfkey.c 12 Sep 2025 11:27:44 -0000 @@ -453,13 +453,15 @@ pfkey_reply(int sd, uint32_t *spi) if (hdr.sadb_msg_errno != 0) { errno = hdr.sadb_msg_errno; + + /* discard error message */ + if (read(sd, &hdr, sizeof(hdr)) == -1) + log_warn("pfkey read"); + if (errno == ESRCH) return (0); else { log_warn("pfkey"); - /* discard error message */ - if (read(sd, &hdr, sizeof(hdr)) == -1) - log_warn("pfkey read"); return (-1); } }
