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Re: Bug#482525: failure to fcntl-lock history file, takes ages to create interactive session

X-seq: zsh-workers 25083
From: Clint Adams <schizo@xxxxxxxxxx>
To: martin f krafft <madduck@xxxxxxxxxx>, 482525@xxxxxxxxxxxxxxx
Subject: Re: Bug#482525: failure to fcntl-lock history file, takes ages to create interactive session
Date: Fri, 23 May 2008 13:24:08 +0000
Cc: zsh-workers@xxxxxxxxxx
In-reply-to: <20080523094636.GA3814@xxxxxxxxxxxxxxxxxxxxxxxxxx>
Mail-followup-to: martin f krafft <madduck@xxxxxxxxxx>, 482525@xxxxxxxxxxxxxxx, zsh-workers@xxxxxxxxxx
Mailing-list: contact zsh-workers-help@xxxxxxxxxx; run by ezmlm
References: <20080523094636.GA3814@xxxxxxxxxxxxxxxxxxxxxxxxxx>

On Fri, May 23, 2008 at 11:46:36AM +0200, martin f krafft wrote:
> When I log in to a machine where my ~ is NFS-mounted (lockd is in
> use), with hist_fcntl_lock set, it takes several minutes to get an
> interactive prompt. The reason is that the locking seems to fail,
> according to strace:
> 
>   open("/home/madduck/.var/zsh/history-diamond", O_RDWR|O_NOCTTY) = 3
>   fcntl64(3, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=0, len=0}) = -1 EIO (Input/output error)
>   rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
>   rt_sigaction(SIGCHLD, NULL, {0x80a88a0, [], SA_INTERRUPT}, 8) = 0
>   rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
>   nanosleep({1, 0}, {1, 0})         = 0 
> 
> This repeats a number of times before it finally moves on. Complete
> strace is attached. Search for "EIO".

Out of curiosity, does the same thing happen if you use -o nolock on the
client?

Follow-Ups:
- Re: Bug#482525: failure to fcntl-lock history file, takes ages to create interactive session
  - From: Vincent Lefevre

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