Date: Thu, 03 Aug 2023 21:24:46 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 272924] cxgbei drops connections during write, with 16+ sessions Message-ID: <bug-272924-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D272924 Bug ID: 272924 Summary: cxgbei drops connections during write, with 16+ sessions Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: asomers@FreeBSD.org On both FreeBSD 13.2 and 14.0 I can use cxgbei offload for my iSCSI session= s.=20 There is no trouble with reads. Writes work too, with up to 9 iSCSI sessio= ns.=20 But somewhere around 14 simultaneous sessions, overall bandwidth becomes terrible (10s to 100s of MB/s) and the server's log is spammed with messages like this: WARNING: 172.32.10.78 (iqn.1994-09.org.freebsd:MYINITATOR.MYDOMAIN.net): no ping reply (NOP-Out) after 5 seconds; dropping connection and this: 2023-08-03T20:32:53.730407+00:00 MYSERVER.MYDOMAIN.net ctld[6453] 172.32.10= .79 (iqn.1994-09.org.freebsd:MYINITIATOR.MYDOMAIN.net): error returned from CTL iSCSI limits request: cfiscsi_ioctl_limits: icl_limits failed with error 6; dropping connection Meanwhile, the initiator's log is spammed with messages like these: 2023-08-03T20:33:57.756484+00:00 MYINITIATOR kernel: WARNING: 172.33.10.58 (iqn.2018-10.net.MYDOMAIN.MYSERVER:zd17): login timed out after 61 seconds; reconnecting 2023-08-03T20:33:57.756486+00:00 slc-rb19b-ss kernel: WARNING: MYSERVER.MYDOMAIN.net (iqn.2018-10.net.MYDOMAIN.MYSERVER:zd17): login timed= out after 61 seconds; reconnecting Is there some kind of undocumented limit that I'm running into? FWIW the l= imit doesn't seem to be related to the number of connected sessions, just the nu= mber of active sessions with traffic. When the failures start, I think I have a= bout 50 total outstanding commands, and around 2-3 GBps of traffic. --=20 You are receiving this mail because: You are the assignee for the bug.=
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