With the patch the kernel seems to be better, but still have mem issues. This happened when trying to run memtester while compiling the kernel: ubu...@panda-maverick-usb:~$ sudo memtester -p 0xb0000000 120 memtester version 4.1.3 (32-bit) Copyright (C) 2010 Charles Cazabon. Licensed under the GNU General Public License version 2 (only).
pagesize is 4096 pagesizemask is 0xfffff000 want 120MB (125829120 bytes) Loop 1: Stuck Address : setting 0Connection to panda-maverick-usb.local closed. <----- Disconnected from my ssh connection Kernel Build: /home/ubuntu/kernel/ubuntu-maverick/kernel/wait.c: In function ‘remove_wait_queue’: /home/ubuntu/kernel/ubuntu-maverick/kernel/wait.c:289: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <file:///usr/share/doc/gcc-4.4/README.Bugs> for instructions. make[3]: *** [kernel/wait.o] Error 1 make[2]: *** [kernel] Error 2 make[2]: *** Waiting for unfinished jobs.... /home/ubuntu/kernel/ubuntu-maverick/mm/vmalloc.c: In function ‘T.534’: /home/ubuntu/kernel/ubuntu-maverick/mm/vmalloc.c:902: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <file:///usr/share/doc/gcc-4.4/README.Bugs> for instructions. CC mm/pagewalk.o gcc: Internal error: Segmentation fault (program cc1) Please submit a full bug report. See <file:///usr/share/doc/gcc-4.4/README.Bugs> for instructions. make[3]: *** [mm/vmalloc.o] Segmentation fault make[3]: *** Waiting for unfinished jobs.... gcc: Internal error: Segmentation fault (program cc1) Please submit a full bug report. See <file:///usr/share/doc/gcc-4.4/README.Bugs> for instructions. make[3]: *** [mm/pagewalk.o] Segmentation fault make[2]: *** [mm] Error 2 make[1]: *** [sub-make] Error 2 make[1]: Leaving directory `/home/ubuntu/kernel/ubuntu-maverick' make: *** [/home/ubuntu/kernel/ubuntu-maverick/debian/stamps/stamp-build-omap4] Error 2 Then the went into a very unstable state (failing next memtest run). -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of TI OMAP Developers, which is a direct subscriber. Status in “linux-ti-omap4” package in Ubuntu: New Bug description: Seen on Maverick: 2.6.35-903.9 HW: pandaboard ES2.0 Using following kernel memory allocation (in bootargs): mem=4...@0x80000000 mem=5...@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=4...@0x80000000 mem=2...@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

