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...nts, that''s why I''m writting here. I''ve two ideas: 1. Because it happend on system crash or something, we can expect that this is caused by the last change. If so, we could try corrupting most recent uberblock, so ZFS will pick up previous uberblock. 2. Instead of pancing in space_map_add(), we could try to space_map_remove() the offensive entry, eg: - VERIFY(ss == NULL); + if (ss != NULL) { + space_map_remove(sm, ss->ss_start, ss->ss_end); + goto again; + } Both of those ideas can make things worse, so I want to know what damage can be done using th...

Hi, I'm trying to figure out the cause of a soft lockup I experienced: Mar 29 09:38:24 pstn1 kernel: BUG: soft lockup - CPU#0 stuck for 10s! [asterisk:32029] Mar 29 09:38:24 pstn1 kernel: Pid: 32029, comm: asterisk Mar 29 09:38:24 pstn1 kernel: EIP: 0060:[<c046e7fe>] CPU: 0 Mar 29 09:38:24 pstn1 kernel: EIP is at kfree+0x68/0x6c Mar 29 09:38:24 pstn1 kernel: EFLAGS: