Date: Thu, 08 Sep 2022 20:31:50 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 266302] [zfs][iscsi] Periodic drops by ctl with "failed to allocate soft PDU" since 13.1 Message-ID: <bug-266302-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D266302 Bug ID: 266302 Summary: [zfs][iscsi] Periodic drops by ctl with "failed to allocate soft PDU" since 13.1 Product: Base System Version: 13.1-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: eborisch+FreeBSD@gmail.com I have an iSCSI connection with 13.1 running on both ends; ZVOLs provided over iSCSI for bhyve VMs on the client side. I've been running this configuration for 5+ years on previous releases. After upgrading the serving (ctl) side 13.0p7->13.1, I have started getting these warnings/errors intermittently (<1-14 days between occurrences): Server (ctl) side: (Repeats a handful of times, all with the same timestamp= .) | Aug 23 21:08:41 <server> kernel: WARNING: icl_soft_conn_new_pdu: failed to allocate soft PDU | Aug 23 21:08:41 <server> kernel: WARNING: 10.0.1.2 (iqn.1994-09.org.freebsd:<client>): connection error; dropping connection Client (iscsid) side: | Aug 23 21:08:42 <client> kernel: WARNING: <server> (iqn.<tgt>): connection error; reconnecting | Aug 23 21:09:08 <client> kernel: (da4:iscsi2:0:0:0): WRITE(6). CDB: 0a 0f be 60 08 00 | Aug 23 21:09:08 <client> kernel: (da4:iscsi2:0:0:0): CAM status: SCSI Status Error | Aug 23 21:09:08 <client> kernel: (da4:iscsi2:0:0:0): SCSI status: Check Condition | Aug 23 21:09:08 <client> kernel: (da4:iscsi2:0:0:0): SCSI sense: UNIT ATTENTION asc:29,7 (I_T nexus loss occurred) | Aug 23 21:09:08 <client> kernel: (da4:iscsi2:0:0:0): Retrying command (per sense data) While I don't see any errors occurring in the (lightly loaded) VM that is using this device (nothing reported by the VM's kernel; forcing filesystem checks returns nothing), I was wondering if anyone had suggestions for what might be going on here. The server here was updated to 13.1 first, and errors first appeared in that state (13.0 client; 13.1 server), and have persisted in the current (both 13.1) configuration. 10 GbE X540-AT2 on both ends. Thanks for any suggestions! --=20 You are receiving this mail because: You are the assignee for the bug.=
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