Re: NFS: panic with "locking against myself" for vp->v_interlock

To: NetBSD current-users <current-users%NetBSD.org@localhost>
Subject: Re: NFS: panic with "locking against myself" for vp->v_interlock
From: Rin Okuyama <rokuyama.rk%gmail.com@localhost>
Date: Sat, 2 May 2020 22:46:58 +0900

On 2020/04/17 6:29, Rin Okuyama wrote:

Panic occurred for my powerpc/ibm4xx:

[   1.0000000] NetBSD 9.99.56 (OBS266) #195: Fri Apr 17 05:33:35 JST 2020
[   1.0000000]  rin@latipes:/build/src/sys/arch/evbppc/compile/OBS266
...
[ 994.4196596] Mutex error: mutex_vector_enter,542: locking against myself


This seems fixed by nfs_node.c rev 1.126:
http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/nfs/nfs_node.c#rev1.126

Uptime of my ibm4xx box now exceeds one day with heavy NFS I/O.

Thank you so much hannken@ for working on this!!

rin

References:
- NFS: panic with "locking against myself" for vp->v_interlock
  - From: Rin Okuyama

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