On Sat, Apr 11, 2015 at 7:57 PM, Alan Cox <[email protected]> wrote: > On 04/10/2015 04:11, Svatopluk Kraus wrote: >> Hi, >> >> my RPI-B has been stuck in vm_reserv_reclaim_contig() due to a bug >> within that function. I can reproduce that easily on my two-core >> pandaboard when I limit all memory in system to 128MiB and run "make >> -j16 kernel-toolchain". It happens in few seconds. >> >> The patch should be self-explanatory. The problem is that there is a >> free page found in reservation which does not fulfill alignment >> requirement, thus next free page should be looked for. However, due to >> the bug, the same free page is found out again and again. >> >> The patch takes into account that shift by m on n-bit arch has an >> undefined behaviour if m >= n. >> > > The patch looks correct. I'm just going to tweak the comment, and then > I'll commit it. >
Thank you. Svatopluk Kraus _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[email protected]"
