On Wed, Aug 29, 2012 at 2:42 PM, Johannes Stezenbach <[email protected]> wrote: > Hi Natanael, > > On Wed, Aug 29, 2012 at 09:18:57AM +0000, Natanael Copa wrote: >> I previously sent a bug report for pread/pwrite with a link to a >> patch that i hacked up quick and dirty. This showed up to be severly >> broken on x86_64 and corrupted several qemu disks images for me. >> >> I see that this bad patch made it into 0.9.33 stabel tree. I think it >> should be reverted and instead use cherry-picks from master. This is >> what we currently use with success in Alpine Linux. >> >> Tested on x86_64 and x86. > > I just built a toolchain for ARM from 0.9.33 stable branch > and I'm trying to figure out if the breakage is x86_64 only. > could you give more details what breaks and why?
It is only 64bit that is broke. On 64bit it should be an alias to the pread64/pwrite64 syscalls and not do the offset hi/lo stuff like it need to do on 32bit. The result was that offsets bigger than 4G (or 2G?) got cutted. Typical 64 bit vs 32 bit bug. -- Natanael Copa _______________________________________________ uClibc mailing list [email protected] http://lists.busybox.net/mailman/listinfo/uclibc
