On 2025/10/28 06:50, [email protected] wrote:
# uname -r 6.18.0-rc3-00011-g31772dcc6abc # wget http://www.rtmrtm.org/rtm/erofs22a.img # mount -t erofs -o loop erofs22a.img /mnt # ls -l /mnt/x ... BUG: soft lockup - CPU#8 stuck for 26s! [ls:1309] The "do" loop in z_erofs_zstd_decompress() never quits; some guesses about why: * in_buf.size and .pos indicate there is no more input available. * zstd_decompress_stream() returns 9 indicating that it would like more input. * z_erofs_stream_switch_bufs() does nothing, perhaps because rq->inputsize and rq->outputsize are both zero, but also returns err=0. #0 0xffffffff806ddbd6 in z_erofs_zstd_decompress (rq=0xffffffc6002f3308, pgpl=0xffffffc6002f3750) at fs/erofs/decompressor_zstd.c:178 #1 0xffffffff806dab54 in z_erofs_decompress_pcluster (err=0, be=0xffffffc6002f3340) at fs/erofs/zdata.c:1308 #2 z_erofs_decompress_queue (io=io@entry=0xffffffc6002f35c8, pagepool=pagepool@entry=0xffffffc6002f3750) at fs/erofs/zdata.c:1408 #3 0xffffffff806dba48 in z_erofs_runqueue (f=f@entry=0xffffffc6002f36e0, rapages=rapages@entry=0) at fs/erofs/zdata.c:1804 #4 0xffffffff806dbf00 in z_erofs_read_folio (file=file@entry=0x0, folio=folio@entry=0xffffffc500145140) at fs/erofs/zdata.c:1884 #5 0xffffffff8020adaa in filemap_read_folio (file=file@entry=0x0, filler=filler@entry=0xffffffff806dbe6e <z_erofs_read_folio>, folio=folio@entry=0xffffffc500145140) at mm/filemap.c:2444 #6 0xffffffff8020d66a in do_read_cache_folio (mapping=0xffffffd602488588, index=index@entry=0, filler=0xffffffff806dbe6e <z_erofs_read_folio>, filler@entry=0x0, file=0x0, gfp=1051840) at mm/filemap.c:4024 #7 0xffffffff8020d714 in read_cache_folio (mapping=<optimized out>, index=index@entry=0, filler=filler@entry=0x0, file=<optimized out>) at mm/filemap.c:4056 #8 0xffffffff806d37ea in read_mapping_folio (file=<optimized out>, index=0, mapping=<optimized out>) at ./include/linux/pagemap.h:999 #9 erofs_bread (buf=buf@entry=0xffffffc6002f3910, offset=0, need_kmap=need_kmap@entry=true) at fs/erofs/data.c:40 #10 0xffffffff806d41a8 in erofs_find_target_block ( target=target@entry=0xffffffc6002f3a00, dir=dir@entry=0xffffffd6024883f0, name=name@entry=0xffffffc6002f39f0, _ndirents=_ndirents@entry=0xffffffc6002f39ec) at fs/erofs/namei.c:103 #11 0xffffffff806d4440 in erofs_namei (dir=dir@entry=0xffffffd6024883f0, name=name@entry=0xffffffd6025b88b0, nid=nid@entry=0xffffffc6002f3ab0, d_type=d_type@entry=0xffffffc6002f3aac) at fs/erofs/namei.c:177 #12 0xffffffff806d4710 in erofs_lookup (flags=<optimized out>, dentry=0xffffffd6025b8890, dir=0xffffffd6024883f0) at fs/erofs/namei.c:206 #13 erofs_lookup (dir=0xffffffd6024883f0, dentry=0xffffffd6025b8890, flags=<optimized out>) at fs/erofs/namei.c:193 #14 0xffffffff802c575e in __lookup_slow (name=name@entry=0xffffffc6002f3bf8, dir=dir@entry=0xffffffd6025b8620, flags=flags@entry=0) at fs/namei.c:1816 #15 0xffffffff802c8a10 in lookup_slow (flags=0, dir=0xffffffd6025b8620, name=0xffffffc6002f3bf8) at fs/namei.c:1833 #16 walk_component (nd=0xffffffc6002f3be8, flags=1) at fs/namei.c:2151 #17 0xffffffff802c93c2 in lookup_last (nd=0xffffffc6002f3be8) at fs/namei.c:2660 #18 path_lookupat (nd=nd@entry=0xffffffc6002f3be8, flags=flags@entry=256, path=path@entry=0xffffffc6002f3d28) at fs/namei.c:2684
Thanks! Let me try to look into this today. Thanks, Gao Xiang
Robert Morris [email protected]
