diff options
| author |   miod <miod@openbsd.org> | 2007-06-04 16:52:39 +0000 |
|---|---|---|
| committer | miod <miod@openbsd.org> | 2007-06-04 16:52:39 +0000 |
| commit | 7f8c438f6c92f4cc1d9f87ad2693f13d706da4ad (patch) | |
| tree | fa8caab7d058b3a3d56b23dbbb4bb0c7283fa7f6 | |
| parent | Bring presto's readdisklabel() usage into line with other uses. i.e. (diff) | |
| download | wireguard-openbsd-7f8c438f6c92f4cc1d9f87ad2693f13d706da4ad.tar.xz wireguard-openbsd-7f8c438f6c92f4cc1d9f87ad2693f13d706da4ad.zip | |
If it's cold at panic time, attempt to show a small backtrace, there are too
many machines where glass console does not work correctly at this stage.
By popular demand...
| -rw-r--r-- | sys/ddb/db_trap.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/ddb/db_trap.c b/sys/ddb/db_trap.c index a3c024af6fe..94a7cff8b74 100644 --- a/sys/ddb/db_trap.c +++ b/sys/ddb/db_trap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: db_trap.c,v 1.11 2006/03/13 06:23:20 jsg Exp $ */ +/* $OpenBSD: db_trap.c,v 1.12 2007/06/04 16:52:39 miod Exp $ */ /* $NetBSD: db_trap.c,v 1.9 1996/02/05 01:57:18 christos Exp $ */ /* @@ -47,6 +47,7 @@ #include <ddb/db_output.h> #include <ddb/db_sym.h> #include <ddb/db_extern.h> +#include <ddb/db_interface.h> void db_trap(int type, int code) @@ -72,6 +73,15 @@ db_trap(int type, int code) db_dot = PC_REGS(DDB_REGS); db_print_loc_and_inst(db_dot); + /* + * Just in case we do not have any usable console driver, + * give the user a traceback. + */ + if (cold) { + db_stack_trace_print(db_dot, 0, 20 /* arbitrary */, "", + db_printf); + } + if (panicstr != NULL) { if (db_print_position() != 0) db_printf("\n"); |