Date: Tue, 3 Oct 2017 07:40:46 +0200 From: Ben RUBSON <ben.rubson@gmail.com> To: Freebsd fs <freebsd-fs@FreeBSD.org> Subject: Re: ZFS stalled after some mirror disks were lost Message-ID: <BA5AF794-8AB0-4089-B7F0-4FE083DCD2D1@gmail.com> In-Reply-To: <84f5608e-d312-437c-3c6b-d8e5847de8bc@FreeBSD.org> References: <4A0E9EB8-57EA-4E76-9D7E-3E344B2037D2@gmail.com> <71d4416a-3454-df36-adae-34c0b70cd84e@multiplay.co.uk> <8A189756-028A-465E-9962-D0181FAEBB79@gmail.com> <5d3e1f0d-c618-afa4-7e52-819c9edf30c9@FreeBSD.org> <48D23270-1811-4E09-8AF2-5C0FEC2F9176@gmail.com> <9ff8ef2c-b445-dad3-d726-b84793c173ee@FreeBSD.org> <84f5608e-d312-437c-3c6b-d8e5847de8bc@FreeBSD.org>
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> On 02 Oct 2017, at 23:06, Andriy Gapon <avg@FreeBSD.org> wrote: >=20 > Forgot to add. It would be nice to determine an owner of = spa_namespace_lock. > If you have debug symbols then it can be easily done in kgdb on the = live system: > (kgdb) p spa_namespace_lock Thank you very much Andriy for your deep analysis, much appreciated ! Unfortunately, I lost access to the server and had to recycle it :| ... I have some everyday maintenance windows on this production infra, so for sure plan is to try to reproduce the issue. I will then let you know. Thank you all again, Ben
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