Hi Neil and all, thank you very much for looking into this:
So I don't know what's going on. What is the typical call stack for those zil_clean() threads?
I'd say they are all blocking on their respective CVs: ffffff0009066c60 fffffffffbc2c030 0 0 60 ffffff01d25e1180 PC: _resume_from_idle+0xf1 TASKQ: zil_clean stack pointer for thread ffffff0009066c60: ffffff0009066b60 [ ffffff0009066b60 _resume_from_idle+0xf1() ] swtch+0x147() cv_wait+0x61() taskq_thread+0x10b() thread_start+8() I should add that I have quite a lot of datasets: r...@haggis:~# zfs list -r -t filesystem | wc -l 49 r...@haggis:~# zfs list -r -t volume | wc -l 14 r...@haggis:~# zfs list -r -t snapshot | wc -l 6018 Nils _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss