On Thu, Feb 08, 2024 at 04:46:16 PM +0800, Zorro Lang wrote: > Hi, > > Recently I hit a deadlock then panic at the end [1] by running > xfstests generic/133 on x86_64 xfs with linux v6.8-rc3+. And > it's reproducible by loop running g/133 many times. > > But I found that each time I hit this deadlock, the testing > machine uses a *multi-stripes* disk/fs, likes: > > TEST_DEV: > meta-data=/dev/sda2 isize=512 agcount=16, agsize=245744 blks > = sectsz=512 attr=2, projid32bit=1 > = crc=1 finobt=1, sparse=1, rmapbt=0 > = reflink=1 bigtime=1 inobtcount=1 nrext64=1 > data = bsize=4096 blocks=3931904, imaxpct=25 > = sunit=16 swidth=32 blks > naming =version 2 bsize=4096 ascii-ci=0, ftype=1 > log =internal log bsize=4096 blocks=16384, version=2 > = sectsz=512 sunit=16 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > SCRATCH_DEV: > meta-data=/dev/sda3 isize=512 agcount=16, agsize=245744 blks > = sectsz=512 attr=2, projid32bit=1 > = crc=1 finobt=1, sparse=1, rmapbt=0 > = reflink=1 bigtime=1 inobtcount=1 nrext64=1 > data = bsize=4096 blocks=3931904, imaxpct=25 > = sunit=16 swidth=32 blks > naming =version 2 bsize=4096 ascii-ci=0, ftype=1 > log =internal log bsize=4096 blocks=16384, version=2 > = sectsz=512 sunit=16 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > "Multiple stripes" is one of the configurations on which I execute fstests. However, I noticed that my kernel build configuration did not have KASAN enabled. Even with KASAN enabled, I am unable to recreate the bug. I have executed generic/133 test for 100 iterations on a kernel built from torvalds/master branch. How easy/difficult is it to recreate this bug on your test machine? > I haven't reproduced this issue on a xfs with sunit=0 and swidth=0. > > The newest linux commit id (HEAD) which I used to hit this issue is > (mainline linux): > > commit 547ab8fc4cb04a1a6b34377dd8fad34cd2c8a8e3 > Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> > Date: Wed Feb 7 18:06:16 2024 +0000 > > Merge tag 'loongarch-fixes-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson > -- Chandan
