From e31d248b5c211bc2e8138f04fcd47e1db35cdf1f Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Fri, 26 Nov 2010 17:05:38 -0500 Subject: copy tty debugging from rawhide --- debug-tty-print-dev-name.patch | 17 +++++++++++++++++ kernel.spec | 5 +++++ 2 files changed, 22 insertions(+) create mode 100644 debug-tty-print-dev-name.patch diff --git a/debug-tty-print-dev-name.patch b/debug-tty-print-dev-name.patch new file mode 100644 index 000000000..9010b64fa --- /dev/null +++ b/debug-tty-print-dev-name.patch @@ -0,0 +1,17 @@ +diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c +index 613c852..09c86d2 100644 +--- a/drivers/tty/tty_io.c ++++ b/drivers/tty/tty_io.c +@@ -1322,7 +1322,11 @@ static int tty_reopen(struct tty_struct *tty) + tty->driver = driver; /* N.B. why do this every time?? */ + + mutex_lock(&tty->ldisc_mutex); +- WARN_ON(!test_bit(TTY_LDISC, &tty->flags)); ++ if (!test_bit(TTY_LDISC, &tty->flags)) { ++ printk("%s: !test_bit(TTY_LDISC, &tty->flags) dev=%s ldisc=%s\n", ++ __func__, tty->name, tty->ldisc ? tty->ldisc->ops ? tty->ldisc->ops->name : NULL : NULL); ++ WARN_ON(1); ++ } + mutex_unlock(&tty->ldisc_mutex); + + return 0; diff --git a/kernel.spec b/kernel.spec index 9df0131bc..752361548 100644 --- a/kernel.spec +++ b/kernel.spec @@ -700,6 +700,7 @@ Patch12205: runtime_pm_fixups.patch Patch12303: dmar-disable-when-ricoh-multifunction.patch Patch12400: tty-dont-allow-reopen-when-ldisc-is-changing.patch +Patch12401: debug-tty-print-dev-name.patch %endif @@ -1291,6 +1292,7 @@ ApplyPatch dmar-disable-when-ricoh-multifunction.patch # rhbz#630464 ApplyPatch tty-dont-allow-reopen-when-ldisc-is-changing.patch +ApplyPatch debug-tty-print-dev-name.patch # END OF PATCH APPLICATIONS @@ -1904,6 +1906,9 @@ fi # || || %changelog +* Fri Nov 26 2010 Kyle McMartin +- Copy tty_open WARN_ON debugging patch from rawhide. + * Fri Nov 26 2010 Kyle McMartin 2.6.37-0.rc3.git2.1 - Linux 2.6.37-rc3-git2 - CGROUP_MEM_RES_CTLR_SWAP_ENABLED is not set, so the cgroup memory -- cgit