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Groups > linux.kernel > #1619440
| From | Adam Borowski <kilobyte@angband.pl> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] btrfs: scrub: use do_div() for 64-by-32 division |
| Date | 2017-04-09 06:10 +0200 |
| Message-ID | <tuckN-6mt-5@gated-at.bofh.it> (permalink) |
| References | <tu2EO-8jn-9@gated-at.bofh.it> <tu5Ml-24v-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sat, Apr 08, 2017 at 11:07:37PM +0200, Adam Borowski wrote: > Unbreaks ARM and possibly other 32-bit architectures. Turns out those "other 32-bit architectures" happen to include i386. A modular build: ERROR: "__udivdi3" [fs/btrfs/btrfs.ko] undefined! With the patch, i386 builds fine. > Tested on amd64 where all is fine, and on arm (Odroid-U2) where scrub > sometimes works, but, like most operations, randomly dies with some badness > that doesn't look related: io_schedule, kunmap_high. That badness wasn't > there in 4.11-rc5, needs investigating, but since it's not connected to our > issue at hand, I consider this patch sort-of tested. Looks like current -next is pretty broken: while amd64 is ok, on an i386 box (non-NX Pentium 4) it hangs very early during boot, way before filesystem modules would be loaded. Qemu boots but has random hangs. So it looks like it's compile only for now... -- ⢀⣴⠾⠻⢶⣦⠀ Meow! ⣾⠁⢠⠒⠀⣿⡁ ⢿⡄⠘⠷⠚⠋⠀ Collisions shmolisions, let's see them find a collision or second ⠈⠳⣄⠀⠀⠀⠀ preimage for double rot13!
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Linux next-20170407 failed to build on ARM due to usage of mod in btrfs code Icenowy Zheng <icenowy@aosc.io> - 2017-04-08 18:10 +0200
Re: Linux next-20170407 failed to build on ARM due to usage of mod in btrfs code Fabio Estevam <festevam@gmail.com> - 2017-04-08 19:50 +0200
Re: Linux next-20170407 failed to build on ARM due to usage of mod in btrfs code Adam Borowski <kilobyte@angband.pl> - 2017-04-08 20:40 +0200
[PATCH] btrfs: scrub: use do_div() for 64-by-32 division Adam Borowski <kilobyte@angband.pl> - 2017-04-08 23:10 +0200
Re: [PATCH] btrfs: scrub: use do_div() for 64-by-32 division Adam Borowski <kilobyte@angband.pl> - 2017-04-09 06:10 +0200
Re: [PATCH] btrfs: scrub: use do_div() for 64-by-32 division Adam Borowski <kilobyte@angband.pl> - 2017-04-10 03:20 +0200
Re: [PATCH] btrfs: scrub: use do_div() for 64-by-32 division David Sterba <dsterba@suse.cz> - 2017-04-10 13:20 +0200
Re: [PATCH] btrfs: scrub: use do_div() for 64-by-32 division "Austin S. Hemmelgarn" <ahferroin7@gmail.com> - 2017-04-10 15:00 +0200
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