Re: net: skge breakage on 2.6.24-rc1
On Wed, Nov 07, 2007 at 03:06:21PM -0800, Andrew Morton wrote: > > On Wed, 7 Nov 2007 23:50:30 +0100 "Rafael J. Wysocki" <[EMAIL PROTECTED]> > > wrote: > > On Wednesday, 7 of November 2007, Heikki Orsila wrote: > > > On Wed, Nov 07, 2007 at 11:46:21PM +0200, Heikki Orsila wrote: > > > > After some bisecting, I found that net skge driver broke on > > > > > > > > commit 7fb7ac241162dc51ec0f7644d4a97b2855213c32 > > > Thanks for doing the bisection. It's a good idea to cc the author of the > offending patch after having done this. Sorry, I just forgot this time. Just after the bug report I did mail the author in private (out of the list). -- Heikki Orsila Barbie's law: [EMAIL PROTECTED] "Math is hard, let's go shopping!" http://www.iki.fi/shd - 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/
Re: net: skge breakage on 2.6.24-rc1
> On Wed, 7 Nov 2007 23:50:30 +0100 "Rafael J. Wysocki" <[EMAIL PROTECTED]> > wrote: > On Wednesday, 7 of November 2007, Heikki Orsila wrote: > > On Wed, Nov 07, 2007 at 11:46:21PM +0200, Heikki Orsila wrote: > > > After some bisecting, I found that net skge driver broke on > > > > > > commit 7fb7ac241162dc51ec0f7644d4a97b2855213c32 Thanks for doing the bisection. It's a good idea to cc the author of the offending patch after having done this. > > > My network card is: > > > > > > :00:0e.0 Ethernet controller: 3Com Corporation 3c940 > > > 10/100/1000Base-T [Marvell] (rev 12) > > > > > > Linux cheradenine 2.6.24-rc1-dirty #15 Wed Nov 7 23:39:28 EET 2007 x86_64 > > > GNU/Linux > > > > Sorry, forgot to say what the problem is. Doing > > > > nc host port < /dev/zero > > > > on a sending machine (not skge) to an skge machine that is receiving: > > > > nc -l -p port >/dev/null > > > > with ~60 MiB/s speed, causes the interface go malfunct. A slow > > transfer doesn't cause a problem. > > > > Also, after some fiddling, I noticed that not changing the register > > write order on patch: > > > > + skge_write32(hw, RB_ADDR(q, RB_END), end); > > skge_write32(hw, RB_ADDR(q, RB_WP), start); > > skge_write32(hw, RB_ADDR(q, RB_RP), start); > > - skge_write32(hw, RB_ADDR(q, RB_END), end); > > > > fixes the visible effect.. Possibly not the root cause of the problem, > > but changing the order back fixes networking here. > > Please put all of the relevant information into the bugzilla entry at > http://bugzilla.kernel.org/show_bug.cgi?id=9321 Please cc [EMAIL PROTECTED] on networking-related discussions. - 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/
Re: net: skge breakage on 2.6.24-rc1
On Wednesday, 7 of November 2007, Heikki Orsila wrote: > On Wed, Nov 07, 2007 at 11:46:21PM +0200, Heikki Orsila wrote: > > After some bisecting, I found that net skge driver broke on > > > > commit 7fb7ac241162dc51ec0f7644d4a97b2855213c32 > > > > My network card is: > > > > :00:0e.0 Ethernet controller: 3Com Corporation 3c940 10/100/1000Base-T > > [Marvell] (rev 12) > > > > Linux cheradenine 2.6.24-rc1-dirty #15 Wed Nov 7 23:39:28 EET 2007 x86_64 > > GNU/Linux > > Sorry, forgot to say what the problem is. Doing > > nc host port < /dev/zero > > on a sending machine (not skge) to an skge machine that is receiving: > > nc -l -p port >/dev/null > > with ~60 MiB/s speed, causes the interface go malfunct. A slow > transfer doesn't cause a problem. > > Also, after some fiddling, I noticed that not changing the register > write order on patch: > > + skge_write32(hw, RB_ADDR(q, RB_END), end); > skge_write32(hw, RB_ADDR(q, RB_WP), start); > skge_write32(hw, RB_ADDR(q, RB_RP), start); > - skge_write32(hw, RB_ADDR(q, RB_END), end); > > fixes the visible effect.. Possibly not the root cause of the problem, > but changing the order back fixes networking here. Please put all of the relevant information into the bugzilla entry at http://bugzilla.kernel.org/show_bug.cgi?id=9321 Thanks, Rafael - 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/
Re: net: skge breakage on 2.6.24-rc1
On Wed, Nov 07, 2007 at 11:46:21PM +0200, Heikki Orsila wrote: > After some bisecting, I found that net skge driver broke on > > commit 7fb7ac241162dc51ec0f7644d4a97b2855213c32 > > My network card is: > > :00:0e.0 Ethernet controller: 3Com Corporation 3c940 10/100/1000Base-T > [Marvell] (rev 12) > > Linux cheradenine 2.6.24-rc1-dirty #15 Wed Nov 7 23:39:28 EET 2007 x86_64 > GNU/Linux Sorry, forgot to say what the problem is. Doing nc host port < /dev/zero on a sending machine (not skge) to an skge machine that is receiving: nc -l -p port >/dev/null with ~60 MiB/s speed, causes the interface go malfunct. A slow transfer doesn't cause a problem. Also, after some fiddling, I noticed that not changing the register write order on patch: + skge_write32(hw, RB_ADDR(q, RB_END), end); skge_write32(hw, RB_ADDR(q, RB_WP), start); skge_write32(hw, RB_ADDR(q, RB_RP), start); - skge_write32(hw, RB_ADDR(q, RB_END), end); fixes the visible effect.. Possibly not the root cause of the problem, but changing the order back fixes networking here. -- Heikki Orsila Barbie's law: [EMAIL PROTECTED] "Math is hard, let's go shopping!" http://www.iki.fi/shd - 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/
Re: net: skge breakage on 2.6.24-rc1
On Wed, Nov 07, 2007 at 11:46:21PM +0200, Heikki Orsila wrote: After some bisecting, I found that net skge driver broke on commit 7fb7ac241162dc51ec0f7644d4a97b2855213c32 My network card is: :00:0e.0 Ethernet controller: 3Com Corporation 3c940 10/100/1000Base-T [Marvell] (rev 12) Linux cheradenine 2.6.24-rc1-dirty #15 Wed Nov 7 23:39:28 EET 2007 x86_64 GNU/Linux Sorry, forgot to say what the problem is. Doing nc host port /dev/zero on a sending machine (not skge) to an skge machine that is receiving: nc -l -p port /dev/null with ~60 MiB/s speed, causes the interface go malfunct. A slow transfer doesn't cause a problem. Also, after some fiddling, I noticed that not changing the register write order on patch: + skge_write32(hw, RB_ADDR(q, RB_END), end); skge_write32(hw, RB_ADDR(q, RB_WP), start); skge_write32(hw, RB_ADDR(q, RB_RP), start); - skge_write32(hw, RB_ADDR(q, RB_END), end); fixes the visible effect.. Possibly not the root cause of the problem, but changing the order back fixes networking here. -- Heikki Orsila Barbie's law: [EMAIL PROTECTED] Math is hard, let's go shopping! http://www.iki.fi/shd - 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/
Re: net: skge breakage on 2.6.24-rc1
On Wednesday, 7 of November 2007, Heikki Orsila wrote: On Wed, Nov 07, 2007 at 11:46:21PM +0200, Heikki Orsila wrote: After some bisecting, I found that net skge driver broke on commit 7fb7ac241162dc51ec0f7644d4a97b2855213c32 My network card is: :00:0e.0 Ethernet controller: 3Com Corporation 3c940 10/100/1000Base-T [Marvell] (rev 12) Linux cheradenine 2.6.24-rc1-dirty #15 Wed Nov 7 23:39:28 EET 2007 x86_64 GNU/Linux Sorry, forgot to say what the problem is. Doing nc host port /dev/zero on a sending machine (not skge) to an skge machine that is receiving: nc -l -p port /dev/null with ~60 MiB/s speed, causes the interface go malfunct. A slow transfer doesn't cause a problem. Also, after some fiddling, I noticed that not changing the register write order on patch: + skge_write32(hw, RB_ADDR(q, RB_END), end); skge_write32(hw, RB_ADDR(q, RB_WP), start); skge_write32(hw, RB_ADDR(q, RB_RP), start); - skge_write32(hw, RB_ADDR(q, RB_END), end); fixes the visible effect.. Possibly not the root cause of the problem, but changing the order back fixes networking here. Please put all of the relevant information into the bugzilla entry at http://bugzilla.kernel.org/show_bug.cgi?id=9321 Thanks, Rafael - 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/
Re: net: skge breakage on 2.6.24-rc1
On Wed, 7 Nov 2007 23:50:30 +0100 Rafael J. Wysocki [EMAIL PROTECTED] wrote: On Wednesday, 7 of November 2007, Heikki Orsila wrote: On Wed, Nov 07, 2007 at 11:46:21PM +0200, Heikki Orsila wrote: After some bisecting, I found that net skge driver broke on commit 7fb7ac241162dc51ec0f7644d4a97b2855213c32 Thanks for doing the bisection. It's a good idea to cc the author of the offending patch after having done this. My network card is: :00:0e.0 Ethernet controller: 3Com Corporation 3c940 10/100/1000Base-T [Marvell] (rev 12) Linux cheradenine 2.6.24-rc1-dirty #15 Wed Nov 7 23:39:28 EET 2007 x86_64 GNU/Linux Sorry, forgot to say what the problem is. Doing nc host port /dev/zero on a sending machine (not skge) to an skge machine that is receiving: nc -l -p port /dev/null with ~60 MiB/s speed, causes the interface go malfunct. A slow transfer doesn't cause a problem. Also, after some fiddling, I noticed that not changing the register write order on patch: + skge_write32(hw, RB_ADDR(q, RB_END), end); skge_write32(hw, RB_ADDR(q, RB_WP), start); skge_write32(hw, RB_ADDR(q, RB_RP), start); - skge_write32(hw, RB_ADDR(q, RB_END), end); fixes the visible effect.. Possibly not the root cause of the problem, but changing the order back fixes networking here. Please put all of the relevant information into the bugzilla entry at http://bugzilla.kernel.org/show_bug.cgi?id=9321 Please cc [EMAIL PROTECTED] on networking-related discussions. - 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/
Re: net: skge breakage on 2.6.24-rc1
On Wed, Nov 07, 2007 at 03:06:21PM -0800, Andrew Morton wrote: On Wed, 7 Nov 2007 23:50:30 +0100 Rafael J. Wysocki [EMAIL PROTECTED] wrote: On Wednesday, 7 of November 2007, Heikki Orsila wrote: On Wed, Nov 07, 2007 at 11:46:21PM +0200, Heikki Orsila wrote: After some bisecting, I found that net skge driver broke on commit 7fb7ac241162dc51ec0f7644d4a97b2855213c32 Thanks for doing the bisection. It's a good idea to cc the author of the offending patch after having done this. Sorry, I just forgot this time. Just after the bug report I did mail the author in private (out of the list). -- Heikki Orsila Barbie's law: [EMAIL PROTECTED] Math is hard, let's go shopping! http://www.iki.fi/shd - 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/
