Re: [linux-sunxi] Cubietruck, gmac freezing TCP connections when at gigabit speed
On Sun, 2015-03-29 at 12:44 -0700, Dániel Varga wrote: I have the same problem, with both mainline kernel and the latest sunxi. I have a gigabit switch, I also set 100mbit link speed to workaround TCP session stalls. It does not stall anymore, but the actually speed is about 5Mbit. I did some more experiments and setting ethernet to half duplex 100mbit solves the speed issue. Unfortunately after a few days of running ssh sessions got stalled again. I'm very interested in any solution to this issue. Sounds a bit like what I was experiencing in: http://mid.gmane.org/1426852029.21742.147.ca...@hellion.org.uk So it might be worth trying a u-boot with the fix applied: http://lists.denx.de/pipermail/u-boot/2015-March/209064.html (or manually use mw.l as shown in the commit log to experiment) Ian. -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Cubietruck, gmac freezing TCP connections when at gigabit speed
I have the same problem, with both mainline kernel and the latest sunxi. I have a gigabit switch, I also set 100mbit link speed to workaround TCP session stalls. It does not stall anymore, but the actually speed is about 5Mbit. I did some more experiments and setting ethernet to half duplex 100mbit solves the speed issue. Unfortunately after a few days of running ssh sessions got stalled again. I'm very interested in any solution to this issue. Thanks, Daniel 2015. január 20., kedd 20:14:12 UTC+1 időpontban maih...@googlemail.com a következőt írta: Same problem here. Seems to be not only cubietruck relate (see http://www.spinics.net/lists/arm-kernel/msg374256.html for example). After setting linkspeed to 100mbit no more issues (to be confirmed in the next few days ;-) -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Cubietruck, gmac freezing TCP connections when at gigabit speed
Same problem here. Seems to be not only cubietruck relate (see http://www.spinics.net/lists/arm-kernel/msg374256.html for example). After setting linkspeed to 100mbit no more issues (to be confirmed in the next few days ;-) -- You received this message because you are subscribed to the Google Groups linux-sunxi group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [linux-sunxi] Cubietruck, gmac freezing TCP connections when at gigabit speed
On Sat, 08 November 2014 Bruno Prémont wrote: Since I have my Cubietruck, be it with 3.4 kernels or with mainline kernels I've been experiencing unstable TCP connections. The symptoms are stalling connections (usually SSH connections to the Cubietruck) that have nearly no chance at recovering. When I tell GMAC to only advertise up to 100Mbps speed the SSH sessions do no show above symptoms anymore. A thread seen on LKML and ARM/NetDev that might also point to the cause of this trouble: stmmac: potential circular locking dependency http://www.spinics.net/lists/arm-kernel/msg374256.html Bruno If it's important, my setup is: 100Mbps1Gbps Laptop --- Switch - Cubietruck Any idea what the cause might be and how to fix it? When running wireshark on the laptop there is only silence when the SSH session is stalled. Just prior to stalling Wireshark mentions one missed packet (previous segment not captured) and no more packets after this. I've not yet had the opportunity to perform a tcpdump capture on the Cubietruck side (not installed yet). signature.asc Description: PGP signature
