I think this should be pushed via upstream. In the following thread, it seems to be concluded that 1) fixups should be default 2) warnings can cause bad side-effects (imagine a unaligned error in sysklogd..)
http://thread.gmane.org/gmane.linux.ports.arm.kernel/34044 On Fri, Apr 25, 2008 at 03:12:08PM +0700, Martin Michlmayr wrote: > I'd like to hear Riku's opinion on this. > > But I'm inclined not to move away from the upstream default, although > I must admit that Sjoerd has good arguments for changing it. > > Maybe you could ask upstream whether it's time to change the default > to a warning? > > > * Sjoerd Simons <[EMAIL PROTECTED]> [2006-11-08 14:02]: > > Package: linux-2.6 > > Severity: normal > > > > Hi, > > > > By default the ARM kernel just ignores unaligned accesses from > > userspace and can just accesses another address then actually > > specified. This can cause strange behaviour by userspace programs. > > While i agree that these programs are somewhat buggy, but doing > > something undefined and not telling anyone doesn't seem like a good > > strategy :) > > > > Some discussion on #debian-arm indicates that it the current default > > made some sense in the old days. Where some programs actually relied > > on the behaviour and the amount of buggy programs was so big that it > > actually caused a flood of warnings. > > > > Times have changed though, no applications in debian should depend on > > this behaviour and turning on warn+fixup doesn't seem cause a flood > > anymore. Most problemeatic should have been fixed by now, as on Sparc > > you'll get a sigbus on unaligned access and iirc Alpha gives a warning > > about it. > > > > For reference, i discovered this issue because powerdns on my arm was > > giving out weird SOA records. So enabling fixup does solves real > > problems or at least shows where they are :) (Yes i've already patched > > pdns and will be sending the patch out after some more testing) > > > > Sjoerd > > > > -- System Information: > > Debian Release: testing/unstable > > APT prefers testing > > APT policy: (500, 'testing'), (101, 'unstable') > > Architecture: arm (armv5tel) > > Shell: /bin/sh linked to /bin/bash > > Kernel: Linux 2.6.18-1-iop32x > > Locale: LANG=C, LC_CTYPE=nl_NL (charmap=ISO-8859-1) > > > > > > -- > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > > -- > Martin Michlmayr > http://www.cyrius.com/ -- "rm -rf" only sounds scary if you don't have backups -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
