Add _irqsave/_irqrestore to the locking in update_drop_skb to keep uml_net_rx out while the drop skb is being messed with.
Signed-off-by: Jeff Dike <[EMAIL PROTECTED]> --- arch/um/drivers/net_kern.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) Index: linux-2.6.22/arch/um/drivers/net_kern.c =================================================================== --- linux-2.6.22.orig/arch/um/drivers/net_kern.c 2007-09-28 11:10:19.000000000 -0400 +++ linux-2.6.22/arch/um/drivers/net_kern.c 2007-09-28 11:13:58.000000000 -0400 @@ -49,9 +49,10 @@ static int drop_max; static int update_drop_skb(int max) { struct sk_buff *new; + unsigned long flags; int err = 0; - spin_lock(&drop_lock); + spin_lock_irqsave(&drop_lock, flags); if (max <= drop_max) goto out; @@ -68,7 +69,7 @@ static int update_drop_skb(int max) drop_max = max; err = 0; out: - spin_unlock(&drop_lock); + spin_unlock_irqrestore(&drop_lock, flags); return err; } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/