Hide Forgot
Description of problem: Firefox is throwing alignment errors on the ARM platform. Version-Release number of selected component (if applicable): firefox-3.5.4-1.fc12.armv5tel How reproducible: Every time. Steps to Reproduce: 1. Boot the system with kernel boot parameter alignment=3 to enable fixup+warn 2. Start Firefox 3. Browse a few pages, open a few links in new tabs, close a few old tabs. 4. Check dmesg to see the alignment errors reported. Actual results: Here is what gets reported in the system log when alignment warnings are enabled: ... Alignment trap: firefox (2983) PC=0x4094ebc4 Instr=0xe1c1a0f0 Address=0xbeb5bcbc FSR 0x801 Alignment trap: firefox (2983) PC=0x4094eef4 Instr=0xe1cd01d8 Address=0xbeb5bcbc FSR 0x001 ... This is only a small example - typically 2-4 thousand of errors like these will get logged within seconds. Expected results: No alignment warnings. Additional info: Recent ARMv7 chips includes automatic alignment fix-up in hardware, so testing for this has to be done on ARMv6 or earlier.
We filed this bug in the upstream database (https://bugzilla.redhat.com/show_bug.cgi?id=670349) and believe that it is more appropriate to let it be resolved upstream. We will continue to track the issue in the centralized upstream bug tracker, and will review any bug fixes that become available for consideration in future updates. We would strongly encourage you to subscribe to the upstream bug as well (by logging in and adding yourself to the Cc list), so that you can provide whatever information required for the successful resolving of this issue. Thank you for helping to make free software better.
It should be https://bugzilla.mozilla.org/show_bug.cgi?id=626635