On Fri, Jan 08, 2021 at 06:07:29PM +0100, Alberto Garcia wrote: > On Mon, Dec 21, 2020 at 11:30:14PM +0200, Adrian Bunk wrote: > > > I see that the build eventually succeeded: > > > > > > > > > https://buildd.debian.org/status/logs.php?pkg=geary&ver=3.38.1-1&arch=mipsel > > > > > > The webkit2gtk build is flaky itself in mipsel, we discussed this > > > already in the past (#962616), I wonder if this is the same root > > > problem? > > > > This is the same problem. > > > > Note that the build is not and never was flaky, it does 100% > > determinisitically fail on Loongson buildds and succeed on Octeon > > buildds. > > > > Jiaxun Yang discovered this weekend that CeilingOnPageSize is wrong > > for Loongson which has 16 kB pagesize and this matches when the > > problems started in 2.28.1, but unfortunately fixing this does not > > seem to fix all problems. > > But this a bug in the CPU, right? Do I understand correctly that the > package can fail depending on what CPU it is run on regardless of how > it was built? > > I'm trying to understand what we can do in WebKit in order to fix or > work around this.
It is a bug in WebKit that a kernel configuration is assumed that is not even permitted on Loongson: https://sources.debian.org/src/webkit2gtk/2.31.1-1/Source/WTF/wtf/PageBlock.h/#L54 https://sources.debian.org/src/linux/5.10.9-1/arch/mips/Kconfig/#L2213-L2215 This might not be sufficient to fix all problems of webkit2gtk on MIPS, but has be fixed in WebKit in any case. > Berto cu Adrian BTW: The 4kB setting for arm64 is also questionable, Ubuntu releases now additionally ship kernels with 64 kB page size: https://launchpad.net/ubuntu/groovy/+package/linux-image-unsigned-5.8.0-41-generic-64k
