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SubjectRe: patch for IA64: fix do_sys32_msgrcv bad address error.
>>>>> On Thu, 5 Sep 2002 19:46:40 +0530, "R Sreelatha" <rsreelat@in.ibm.com> said:

R> In sys_ia32.c file, in the do_sys32_msgrcv() function call, the
R> value of ipck.msgp is interpreted as a 64 bit address, whereas it
R> is a 32 bit address. Hence, do_sys32_msgrcv() finally returns
R> EFAULT(bad address) error. The patch below takes care of this by
R> type casting ipck.msgp to type u32. The patch is created for
R> 2.5.32 version of the kernel.

Yes, this was obviously broken. I committed the attached patch to my 2.5
tree.

--david

# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
# ChangeSet 1.532 -> 1.533
# arch/ia64/ia32/sys_ia32.c 1.18 -> 1.19
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 02/09/05 davidm@tiger.hpl.hp.com 1.533
# ia64: Fix x86 struct ipc_kludge (reported by R Sreelatha, fix proposed by
# Dave Miller).
# --------------------------------------------
#
diff -Nru a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
--- a/arch/ia64/ia32/sys_ia32.c Thu Sep 5 09:51:05 2002
+++ b/arch/ia64/ia32/sys_ia32.c Thu Sep 5 09:51:05 2002
@@ -2111,8 +2111,8 @@
};

struct ipc_kludge {
- struct msgbuf *msgp;
- long msgtyp;
+ u32 msgp;
+ s32 msgtyp;
};

#define SEMOP 1
-
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