Date: Tue, 1 Jul 2014 14:57:01 +0400 From: Dmitry Sivachenko <trtrmitya@gmail.com> To: Ronald Klop <ronald-lists@klop.ws> Cc: freebsd-stable@freebsd.org Subject: Re: 10/stable panic: softdep_deallocate_dependencies: dangling deps Message-ID: <F84286C1-EB0F-4049-A567-1BB0E0FD19AE@gmail.com> In-Reply-To: <op.xia61kp0kndu52@ronaldradial.radialsg.local> References: <021AFCAD-7B0B-47FB-AAFF-8F7085C7E1A6@gmail.com> <op.xia61kp0kndu52@ronaldradial.radialsg.local>
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On 01 =D0=B8=D1=8E=D0=BB=D1=8F 2014 =D0=B3., at 11:57, Ronald Klop = <ronald-lists@klop.ws> wrote: > On Mon, 30 Jun 2014 14:22:02 +0200, Dmitry Sivachenko = <trtrmitya@gmail.com> wrote: >=20 >> Hello! >>=20 >> I have several machines with rather fresh FreeBSD-10/stable. >>=20 >> They all have 4 SATA drives, I have small gmirrored root+var and the = rest of the drive space is mounted as /disk1, /disk2, etc (UFS2+SU). >> When a single disk fails, system panics with = "softdep_deallocate_dependencies: dangling deps" message: >> http://people.freebsd.org/~demon/softdep.png >>=20 >> Since all vital data (root+var) are mirrored, I expect OS to stay = alive. >=20 > Hi, >=20 > So /disk1, /disk2 are not (g)mirrored? In that case the system cannot = handle write failure. Because writes are not synchronous (for speed) = there is no possibility to return an error to the application. No, they are not (g)mirrored. I expect read/write errors, but not kernel panic. Actually I = encountered disk I/O errors since 2.2.5 and it is first time I faced = kernel panic.
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