Hi, Many users who have onboard Realtek 8168 network controllers in combination with nVidia hardware (mostly nVidia graphic card and/or nForce motherboard (MCP5x) ) experience still-not-very-explained hangup triggered by heavy network usage which fills a tx buffer, and (speculation) causes race condition on irq sharing, resulting in absolute freeze (not oops/panic). On all affected machines I've seen this fix solved the problem:
--- a/drivers/net/r8169.c 2008-02-25 22:53:01.000000000 +0100 +++ b/drivers/net/r8169.c 2008-02-25 22:54:32.000000000 +0100 @@ -86,8 +86,8 @@ #define R8169_REGS_SIZE 256 #define R8169_NAPI_WEIGHT 64 -#define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ -#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ +#define NUM_TX_DESC 1024 /* Number of Tx descriptor registers */ +#define NUM_RX_DESC 1024 /* Number of Rx descriptor registers */ #define RX_BUF_SIZE 1536 /* Rx Buffer size */ #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) It's not really a fix, we do not address the real race cond. (or whatever) problem, but it removes the hangup and causes no negative side effects. I need someone else who can confirm that it works. cheers, [exa] PS. There might already be some fixes, but I didn't manage to find them. -- 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
