diff options
| author | Jason Wessel <jason.wessel@windriver.com> | 2010-05-20 21:04:27 -0500 |
|---|---|---|
| committer | Jason Wessel <jason.wessel@windriver.com> | 2010-05-20 21:04:27 -0500 |
| commit | d37d39ae3b4a8f9a21114921fb344fe7cadb1abd (patch) | |
| tree | 2c20219725a12c343429758ec378b5c9d08b04bd /kernel/debug/kdb/kdb_main.c | |
| parent | efe2f29e324fd20e0449bcd6dc6dbe4734c2ba94 (diff) | |
printk,kdb: capture printk() when in kdb shell
Certain calls from the kdb shell will call out to printk(), and any of
these calls should get vectored back to the kdb_printf() so that the
kdb pager and processing can be used, as well as to properly channel
I/O to the polled I/O devices.
CC: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/debug/kdb/kdb_main.c')
| -rw-r--r-- | kernel/debug/kdb/kdb_main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 64ef9ac14ba..b724c791b6d 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -1056,7 +1056,9 @@ static void kdb_dumpregs(struct pt_regs *regs) { int old_lvl = console_loglevel; console_loglevel = 15; + kdb_trap_printk++; show_regs(regs); + kdb_trap_printk--; kdb_printf("\n"); console_loglevel = old_lvl; } @@ -1819,7 +1821,9 @@ static int kdb_sr(int argc, const char **argv) if (argc != 1) return KDB_ARGCOUNT; sysrq_toggle_support(1); + kdb_trap_printk++; handle_sysrq(*argv[1], NULL); + kdb_trap_printk--; return 0; } |