On Mon, Jul 23, 2007 at 07:44:58AM +0200, Marcin Ślusarz wrote: > Ok, I've bisected this problem and found that this patch broke my NIC: > > 76d2160147f43f982dfe881404cfde9fd0a9da21 is first bad commit > commit 76d2160147f43f982dfe881404cfde9fd0a9da21 > Author: Ingo Molnar <mingo@xxxxxxx> > Date: Fri Feb 16 01:28:24 2007 -0800 > > [PATCH] genirq: do not mask interrupts by default > > Never mask interrupts immediately upon request. Disabling interrupts in > high-performance codepaths is rare, and on the other hand this change > could > recover lost edges (or even other types of lost interrupts) by > conservatively > only masking interrupts after they happen. (NOTE: with this change the > highlevel irq-disable code still soft-disables this IRQ line - and > if such an > interrupt happens then the IRQ flow handler keeps the IRQ masked.) > > Mark i8529A controllers as 'never loses an edge'. > > Signed-off-by: Ingo Molnar <mingo@xxxxxxx> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> So, it seems nobody (except the users) cares... BTW, maybe there should be created something like "Network Cards Producers Made Rich on Unnecessary Changed Cards Linux Foundation"?: On Fri, Jun 29, 2007 at 10:50:20AM +0200, Jean-Baptiste Vignaud wrote: ... > 2) changed the 3com cards > i replaced by two cards, > 01:06.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 42) > 01:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS) > > reinstalled and stressed the network (small download from a laptop) and : > > Jun 29 09:34:10 loki kernel: NETDEV WATCHDOG: eth0: transmit timed out > Jun 29 09:34:51 loki last message repeated 14 times > Jun 29 09:35:18 loki last message repeated 8 times ...Of course, no response of any "serious" developer for this as well. BTW #2: I wonder how true is this (after above-mentioned patch): >From include/linux/irq.h: > /** > * struct irq_chip - hardware interrupt chip descriptor ... > * @disable: disable the interrupt (defaults to chip->mask if NULL) Regards, Jarek P. - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
