I was observing reproducible crashes on the "movw %bx,(%rsi)" instruction
below while a process in a recvfrom() system call was copying packet data
to user space. The patch below fixes the exception table and causes the
crash to no longer reproduce. Please apply.
Thanks,
Dave Peterson
<[EMAIL PROTECTED]> <[EMAIL PROTECTED]>
diff -urNp -X dontdiff linux-2.6.12.3/arch/x86_64/lib/csum-copy.S
linux-2.6.12.3-bugfix/arch/x86_64/lib/csum-copy.S
--- linux-2.6.12.3/arch/x86_64/lib/csum-copy.S 2005-07-15 14:18:57.000000000
-0700
+++ linux-2.6.12.3-bugfix/arch/x86_64/lib/csum-copy.S 2005-07-29
16:06:47.000000000 -0700
@@ -188,8 +188,8 @@ csum_partial_copy_generic:
source
movw (%rdi),%bx
adcl %ebx,%eax
- dest
decl %ecx
+ dest
movw %bx,(%rsi)
leaq 2(%rdi),%rdi
leaq 2(%rsi),%rsi
-
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