Yang Zhiguo wrote:
hi,
When i use search command as following, there is a Segmentation fault.
crash> search -k 12345
Segmentation fault
With the following patch, it is OK?
I tried reproducing it on a readily-available ia64 running a RHEL5 xen
kernel, and
the command runs OK for me. I'll try it on a bare-metal ia64 tomorrow
to see if that
makes a difference.
In any case, your patch would skip the vmalloc (region 5) area
completely, so that's
not going to work. So I need to know why it's failing on your machine.
Can you
run crash from gdb, and figure out exactly which address it's failing on?
Thanks,
Dave
--- ../crash/crash-4.0-6.1/memory.c 2008-02-29 01:09:10.000000000
+0900
+++ memory.c 2008-03-28 10:32:47.000000000 +0900
@@ -11047,6 +11047,11 @@ search(ulong start, ulong end, ulong mas
break;
case KVADDR:
+ if (machine_type("IA64") &&
(machdep->machspec->kernel_start > pp)) {
+ pp = machdep->machspec->kernel_start;
+ continue;
+ }
+
if (!kvtop(CURRENT_CONTEXT(), pp, &paddr, 0) ||
!phys_to_page(paddr, &page)) {
if (!next_kpage(pp, &pp))
Best Regards,
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