From: "Michael Chan" <[EMAIL PROTECTED]> Date: Wed, 13 Dec 2006 18:30:33 -0800
> [BNX2]: Fix panic in bnx2_tx_int(). > > There was an off-by-one bug in bnx2_tx_avail(). If the tx ring is > completely full, the producer and consumer indices may be apart by > 256 even though the ring size is only 255. One entry in the ring is > unused and must be properly accounted for when calculating the number > of available entries. The bug caused the tx ring entries to be > reused by mistake, overwriting active entries, and ultimately causing > it to crash. > > This bug rarely occurs because the tx ring is rarely completely full. > We always stop when there is less than MAX_SKB_FRAGS entries available > in the ring. > > Thanks to Corey Kovacs <[EMAIL PROTECTED]> and Andy Gospodarek > <[EMAIL PROTECTED]> for reporting the problem and helping to collect > debug information. > > Signed-off-by: Michael Chan <[EMAIL PROTECTED]> Applied, thanks. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
