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authorrwatson <rwatson@FreeBSD.org>2012-08-25 08:02:46 +0000
committerrwatson <rwatson@FreeBSD.org>2012-08-25 08:02:46 +0000
commitc0dc7388a9278146d7a5a958178a26c24cf1c4f1 (patch)
tree13f8ec2a614e436fa0da09306eba282cacd0a752
parentbf236ce6cc4b1ff79205814d01cc34de80949a8d (diff)
downloadFreeBSD-src-c0dc7388a9278146d7a5a958178a26c24cf1c4f1.zip
FreeBSD-src-c0dc7388a9278146d7a5a958178a26c24cf1c4f1.tar.gz
On MIPS, when printing page fault information for an unexpected exception
type, explicitly print out "unknown" rather than the empty string, and include the exception type number for ease of debugging. Sponsored by: DARPA, AFRL
-rw-r--r--sys/mips/mips/trap.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/mips/mips/trap.c b/sys/mips/mips/trap.c
index a60701d..7254d4f 100644
--- a/sys/mips/mips/trap.c
+++ b/sys/mips/mips/trap.c
@@ -1465,15 +1465,17 @@ log_bad_page_fault(char *msg, struct trapframe *frame, int trap_type)
read_or_write = "read";
break;
default:
- read_or_write = "";
+ read_or_write = "unknown";
}
pc = frame->pc + (DELAYBRANCH(frame->cause) ? 4 : 0);
- log(LOG_ERR, "%s: pid %d tid %ld (%s), uid %d: pc %#jx got a %s fault at %#jx\n",
+ log(LOG_ERR, "%s: pid %d tid %ld (%s), uid %d: pc %#jx got a %s fault "
+ "(type %#x) at %#jx\n",
msg, p->p_pid, (long)td->td_tid, p->p_comm,
p->p_ucred ? p->p_ucred->cr_uid : -1,
(intmax_t)pc,
read_or_write,
+ trap_type,
(intmax_t)frame->badvaddr);
/* log registers in trap frame */
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