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[Bug translator/10690] need way to produce bigger procfs output
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 19 Jan 2010 22:31:54 -0000
- Subject: [Bug translator/10690] need way to produce bigger procfs output
- References: <20090923141722.10690.fche@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From dsmith at redhat dot com 2010-01-19 22:31 -------
Some additional info:
One complication in producing bigger procfs input/output is that the maximum
buffer size the kernel will input/output in one call to the procfs
read_proc()/write_proc() is PAGE_SIZE bytes long. (This is why read_proc() gets
an 'offset' parameter.)
Some kernel procfs file handling code now uses the 'seq' file interface to help
simplify large procfs file handling. Systemtap may need to consider this.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10690
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