Hi Michael, >> in write_all_supers(). Does dmesg say anything about the nature >> of the errors above the BUG() line? > The message was output to the console of the crashed system - so > I'm sorry I cannot supply further informations. Ah, okay. You could consider installing kgdb/kdb -- it will let you drop to the kdb shell after the crash and run dmesg through a pager. Just: CONFIG_HAVE_ARCH_KGDB=y CONFIG_KGDB=y CONFIG_KGDB_SERIAL_CONSOLE=y CONFIG_KGDB_TESTS=y # CONFIG_KGDB_TESTS_ON_BOOT is not set CONFIG_KGDB_LOW_LEVEL_TRAP=y CONFIG_KGDB_KDB=y CONFIG_KDB_KEYBOARD=y and then boot with "kgdboc=kms,kbd" added. > But exactly the same crash happened again some minutes ago. (I'm > now back to my old kernel.) Not sure I understand. Do you mean that the same crash happens on your older kernel now, or that you've reverted to your older kernel because you had another -rc5 crash? If the crash happens on -rc5 but not the older kernel (what revision is the older kernel?), that's extremely interesting. Josef/Chris, any knowledge about hitting this BUG() on -rc5? - Chris. -- Chris Ball <cjb@xxxxxxxxxx> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
