Hi, I run AOSP-4.0.4 on a pandaboard rev A3. I got linux kernel from remotes/android-omap/android-omap-panda-3.0 branch, 52f4764 commit "Revert gpu: pvr: Revert to 1.8@550175".
With this software: 1. Ethernet bandwidth is very low, barely usable for file transfers. TX gets stuck, I measured 20KBps. RX is quite slow too. 2. USB storage on USB host port suffers same limitations. I measured ~100KBps. Problem is known though, fedora- and ubuntu guys saw it: http://article.gmane.org/gmane.linux.redhat.fedora.arm/1266 https://bugs.launchpad.net/linux-linaro/+bug/709245 My kernel embeds Ming Lei's barrier patch in ehci-q.c: usb: ehci: make HC see up-to-date qh/qtd descriptor ASAP and Will Deacon's ARM errata CONFIG_PL310_ERRATA_769419: ARM: 7161/1: errata: no automatic store buffer drain I checked that asm on this latter commit is fine (dsb instr.). Still above bugs are still present. For fedora and ubuntu guys though, above fixes have solved the problem. I am reluctant to change my (entire) kernel because everything else that I need works fine. I am in a maturation phase, not in a development phase anymore. Does anyone experience that on pandaboard and aosp? Did you find any workaround? I have been on this bug for 4 weeks now. I am kind of desperate right now. -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
