From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: Persistent failures with simple md setup Date: Wed, 13 Mar 2013 11:52:35 +1100 Message-ID: <20130313115235.01492c21@notabene.brown> References: <1565063.1kpR7lz4Ph@xrated> <20130301082520.19be933a@notabene.brown> <1659994.UpSJlIr5Mb@xrated> <4291349.FrQcKOnicQ@xrated> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/h.Ts/D9Qdgq3bE2nAA88aiD"; protocol="application/pgp-signature" Return-path: In-Reply-To: <4291349.FrQcKOnicQ@xrated> Sender: linux-raid-owner@vger.kernel.org To: Hans-Peter Jansen Cc: Linux RAID List-Id: linux-raid.ids --Sig_/h.Ts/D9Qdgq3bE2nAA88aiD Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable hi, wonder if you could try one more test for me. With the other (echo BEFORE / echo AFTER etc) tracing still there, change = the /sbin/udevadm settle --timeout=3D$MDADM_DEVICE_TIMEOUT to /sbin/udevadm --debug settle --timeout=3D$MDADM_DEVICE_TIMEOUT > /dev/km= sg 2>&1 I found there is a case where "udevadm settle" can exit before the queue is empty. It seems like a very unlikely scenario, but it seems clear that something "unlikely" is happening. I'm hoping to see timeout waiting for udev queue appear in the logs when this runs. If you could add that and post the 'dmesg' output if you ever get that message - or maybe even if you don't - that would be very helpful. Thanks, NeilBrown --Sig_/h.Ts/D9Qdgq3bE2nAA88aiD Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQIVAwUBUT/N0znsnt1WYoG5AQKhfQ//SbCCK0cTf3LlgUzABeCLEq4l7h2TKUlq g7EaXAI8K3vJAAljy85W3B8IySqqNyCC6yLcbuFZplkFWzsw/81MhteFHg9qyhPm 5ebesLz1qzUV9h9zDyxaZUadLDZCCh+1W7103aqNs2nR3K803rBYvj4H+tW6/zty 6VwtL/NoR+O2Qep5iubTe6YrfX2WJXr3bX7kJl6alp4LaPCL2LUypzEoq39OcSbF hpGnKrKzVIJCGBb4B89+baET8ay5uU12H6ok/mpLB0LfhyHhzxp1hGQ5t63k3xT9 j29J77u06ZLRQsF4LLc0hnyuc1DdKD816z0bMI91lNNJ9WiiViSbl3KTuopDIg3b eo5gsIUsf11j2L+dUW9pD9Y7thJpoWzDUHaDG7sV7wVpwsqTK6WNUTwCGlyNaDih s5CgRZ0MorigrerXRtGWah9VmqEnukBiUTrxuvgV0+R/+090Gj3xIBi4IWTdF8g3 nAJXHrpwpmnm8ivM+Sd0MkQyj5nuoPVog2wq6UL07/GMYcXuOE+kxrOED3koC+xs IQwW7Q7c5x3ZMA9/rRoab0Ohu2C38IEz5nMr4zB1zMfScBBWdVkfqBb66g1qHUsQ 90KGaxN6eIr33oDt65/2FX0seNUtasTEMfpwWgHSOLgZyyGBNzBV0ENFSVVlRaMo 8LumEQVHnI8= =z5Hm -----END PGP SIGNATURE----- --Sig_/h.Ts/D9Qdgq3bE2nAA88aiD--