Hi Marcin, Suppose you use ubuntu rootfs, usb(ehci-omap) does not work on my pandaboard with the kernel and modules(even with ubuntu 10 and 11 release for omap4), but is OK if I run the same kernel and modules on Angstrom.
I guess some Ubuntu applications does some special things which may casue usb exception on my pandaboard. Maybe your issue is related with it. If you'd like to, you may test the kernel and modules on Angstrom rootfs, which can be built with the link below. http://narcissus.angstrom-distribution.org/ -- You received this bug notification because you are a member of TI OMAP Developers, which is a direct subscriber. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated Status in “linux-ti-omap4” package in Ubuntu: Confirmed Status in “linux-ti-omap4” source package in Maverick: Fix Released Status in “linux-ti-omap4” source package in Natty: Confirmed Bug description: Seen on Maverick: 2.6.35-903.9 HW: pandaboard ES2.0 Using following kernel memory allocation (in bootargs): mem=460M@0x80000000 mem=512M@0xA0000000 Instabilities have been observed in 2 different ways: 1) The following memtester test: sudo memtester -p 0xb0000000 120 Fails in few seconds with a "illegal instruction” error. Then various behaviors can be seen: the UI can freeze, shell commands be unavailable. The systems works well again after a reboot. 2) By doing a native build of a kernel package (with file-system on SD card, and kernel sources on an NFS mount): After 15mins to 1h30, a "compiler error: bus error" triggers and the build stops (and the platform hangs). This issue cannot be reproduced if using mem=460M@0x80000000 mem=256M@0xA000000. This issue cannot be reproduced with highmen deactivated from the kernel config. This issue can be reproduced with 'nosmp' in kernel command line. _______________________________________________ Mailing list: https://launchpad.net/~tiomap-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~tiomap-dev More help : https://help.launchpad.net/ListHelp

