From: Lars Landmark <larslan@merete.zapto.org>
To: lartc@vger.kernel.org
Subject: [LARTC] Class crash (linux)
Date: Fri, 21 Mar 2003 07:57:54 +0000 [thread overview]
Message-ID: <marc-lartc-104823401101049@msgid-missing> (raw)
Hi;
I am working width a project intended for developing an adaptive class
based QoS system for Linux.
I have been struggling width a bug for a long time now. The bug has been
tracked to procedure tc_ctl_class() in file linux/net/sched/sch_api.c.
In this function there are a switch test, in order to test whether
NEWCLASS or other flags are set.
If RTM_NEWCLASS flag is set, a if test is performed:
if (n->nlmsg_flags&NLM_F_EXCL)
What does this if test perform, especially what does NLM_F_EXCL flag
represent.
When I attach a new class, this test result true. The next step after a
goto call, is to test if there are a class pointer. If there are a
class pointer, an oops call "oops->put(q, cl)" is done.. In this call my
system crash.
Is there any approach in order to solve the oops. ??
Lars Landmark
Student
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reply other threads:[~2003-03-21 7:57 UTC|newest]
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