On Thursday 18 October 2018 21:59:09 Jens Axboe wrote: > On 10/18/18 1:55 PM, Ondrej Zary wrote: > > On Thursday 18 October 2018 20:58:57 Jens Axboe wrote: > >> On 10/18/18 12:34 PM, Ondrej Zary wrote: > >>> Hello, > >>> aha1542 works fine in 4.17 but crashes in 4.18. It's hard to bisect because > >>> of many commits that don't compile. > >>> # only skipped commits left to test > >>> # possible first bad commit: [52190f8abe7f2bf2b4e5f9760cbcc1427ca2136b] fs: convert block_dev.c to bioset_init() > >>> # possible first bad commit: [a47a28b74a5c7c27bf621276b85ad6c124651236] target: convert to bioset_init()/mempool_init() > >>> # possible first bad commit: [6f1c819c219f7841079f0f43ab62727a55b0d849] dm: convert to bioset_init()/mempool_init() > >>> # possible first bad commit: [afeee514ce7f4cab605beedd03be71ebaf0c5fc8] md: convert to bioset_init()/mempool_init() > >>> # possible first bad commit: [d19936a26658a7a53edd5619d631ee2c2c3151a2] bcache: convert to bioset_init()/mempool_init() > >>> # possible first bad commit: [b906bbb6997785d9ea0bd3f5585537afa6257c43] lightnvm: convert to bioset_init()/mempool_init() > >>> > >>> Testing manually, a47a28b74a5c7c27bf621276b85ad6c124651236 works. > >>> 52190f8abe7f2bf2b4e5f9760cbcc1427ca2136b does not compile > >>> 8ac9f7c1fd1d342e82ddf078425423b050652ba0 does not compile > >>> e292d7bc63c8f2adb3dfda27910e805f1b6557f9 does not compile > >>> dad08527525f9a8ac9c7f278864c65f94bc5e9b3 does not compile > >>> 943cf9f3ca16133dbd00f9a4cbfea46512fcb0e8 works > >>> .. > >>> fedc3abe7bd2dcc4c80bcf3cff8708a3908d8219 works > >>> 04c4950d5b373ba712d928592e05e73510785bca crashes > >> > >> It looks like the ISA bioset pool isn't being initialized. You should > >> have messages like this in your dmesg: > >> > >> isa pool size: 16 pages > >> > >> (which you do), but also something on the bioset section. Do you have > >> this one: > >> > >> pool size: 64 pages > >> > >> as well? > >> > > > > No, it's not there. > > Can you attach your .config? I'm guessing CONFIG_HIGHMEM* isn't set. > It is. -- Ondrej Zary