Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 16 Feb 1999 13:53:57 -0800 (PST)
From:      Matthew Dillon <dillon@apollo.backplane.com>
To:        Jonathan Lemon <jlemon@americantv.com>
Cc:        hackers@FreeBSD.ORG
Subject:   Re: system freeze while core dumping
Message-ID:  <199902162153.NAA39295@apollo.backplane.com>
References:   <19990216154205.64792@right.PCS>

next in thread | previous in thread | raw e-mail | index | archive | help
:   0  540   0   0  0.0 3533 124  8.1    0   0  0.0    0   0  0.0   1  0  0  0 99
:   0   81   0   0  0.0 3485 121  8.3    0   0  0.0    0   0  0.0   0  0  0  0100
:
:top shows the coredumping process seems to be perpetually waiting
:on "getblk".
:
:How can I prevent the dumping process from essentially freezing the
:system until it finishes?  The problem also exists on a 3.0-CURRENT
:machine from November.
:--
:Jonathan

    This *may* have been fixed in -current with the getpbuf() fixes.  I'm not
    entirely sure, but I seem to recall that the core dumping caused VFS
    clustering to occur which ( because it is essentially asynchronous ) ate 
    all available pbuf's.  The fix in -4.x limits the number of pbuf's 
    that the clustering code can eat.    Even if it is fixed, it probably still
    isn't optimal.

    The getpbuf() stuff is going to be backported to -3.x in the next month
    or two probably ( just to standardize the interface for the device
    drivers that use it ).

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>



To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199902162153.NAA39295>