I saw a putback this past week from M. Maybee regarding this, but I thought I'd post here that I saw what is apparently an incarnation of 6569719 on a production box running s10u3 x86 w/ latest (on sunsolve) patches. I have 3 other servers configured the same way WRT work load, zfs pools and hardware resources, so if this occurs again I'll see about logging a case and getting a relief patch. Anyhow, perhaps a backport to s10 may be in order
This server is an x4100 hosting about 10k email accounts using Cyrus, and Cyrus's "squatter" mailbox indexer was running at the time (lots of small r/w IO), as well as Networker-based backups which sucks data off a clone (yet tons more small ro IO). Unfortunately due to a recent RAM upgrade of the server in question, the dump device was too small to hold a complete vmcore, but at least the stack trace was logged. Here it is, at least for the posterity's sake: Sep 3 03:27:43 xxx ^Mpanic[cpu0]/thread=fffffe80007b7c80: Sep 3 03:27:43 xxx genunix: [ID 895785 kern.notice] dangling dbufs (dn=fffffe8432bad7d8, dbuf=fffffe81f93c5bd8) Sep 3 03:27:43 xxx unix: [ID 100000 kern.notice] Sep 3 03:27:43 xxx genunix: [ID 655072 kern.notice] fffffe80007b7960 zfs:zfsctl_ops_root+2f168a42 () Sep 3 03:27:43 xxx genunix: [ID 655072 kern.notice] fffffe80007b79a0 zfs:zfsctl_ops_root+2f168af8 () Sep 3 03:27:44 xxx genunix: [ID 655072 kern.notice] fffffe80007b7a10 zfs:dnode_sync+334 () Sep 3 03:27:44 xxx genunix: [ID 655072 kern.notice] fffffe80007b7a60 zfs:dmu_objset_sync_dnodes+7b () Sep 3 03:27:44 xxx genunix: [ID 655072 kern.notice] fffffe80007b7af0 zfs:dmu_objset_sync+5c () Sep 3 03:27:44 xxx genunix: [ID 655072 kern.notice] fffffe80007b7b10 zfs:dsl_dataset_sync+23 () Sep 3 03:27:44 xxx genunix: [ID 655072 kern.notice] fffffe80007b7b60 zfs:dsl_pool_sync+7b () Sep 3 03:27:44 xxx genunix: [ID 655072 kern.notice] fffffe80007b7bd0 zfs:spa_sync+116 () Sep 3 03:27:44 xxx genunix: [ID 655072 kern.notice] fffffe80007b7c60 zfs:txg_sync_thread+115 () Sep 3 03:27:44 xxx genunix: [ID 655072 kern.notice] fffffe80007b7c70 unix:thread_start+8 () /dale _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
