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[Bug kprobes/4531] systemtap tests fail produce kernel oops on some configs of 2.6.22-rc2 kernel
- From: "roland at gnu dot org" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 22 May 2007 19:00:36 -0000
- Subject: [Bug kprobes/4531] systemtap tests fail produce kernel oops on some configs of 2.6.22-rc2 kernel
- References: <20070522162140.4531.wcohen@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From roland at gnu dot org 2007-05-22 20:00 -------
CONFIG_DEBUG_RODATA=y has been there in Fedora kernels for some time.
AFAICT, because CONFIG_HOTPLUG_CPU is set it's only getting applied to
_etext..__end_rodata, which does not include the code sections. It still seems
odd, since I would expect num_cpus_possible to return 1 on some machines anyway.
Also, the i386 code is similar and I would expect it to be write-protecting the
text for num_possible_cpus()==1 too. So there is something else going on here.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=4531
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