forked from nuttx/nuttx-update
32bf92c5c3
Deadlock during recursive access if unionfs overlays procfs, check the critical segment only and remove the useless protection part. |#0 unionfs_statfs (mountpt=0xf3df4540, buf=0xf3de2f0c) at unionfs/fs_unionfs.c:2136 ... |#6 0x08069429 in procfs_read (filep=0xf3df4574, buffer=0xf3df4610 "...", buflen=1024) at procfs/fs_procfs.c:412 |#7 0x0806c339 in unionfs_read (filep=0xf3de219c, buffer=0xf3df4610 "...", buflen=1024) at unionfs/fs_unionfs.c:1026 original call stack: (gdb) bt |#0 unionfs_statfs (mountpt=0xf3df4540, buf=0xf3de2f0c) at unionfs/fs_unionfs.c:2136 |#1 0x08071629 in mountpoint_filter (node=0xf3df4540, dirpath=0xf3df4a28 "/proc", arg=0xf3de2fc4) at mount/fs_foreachmountpoint.c:119 |#2 0x0807171b in foreach_inodelevel (node=0xf3df4540, info=0xf3df4a20) at inode/fs_foreachinode.c:90 |#3 0x08071898 in foreach_inode (handler=0x8071530 <mountpoint_filter>, arg=0xf3de2fc4) at inode/fs_foreachinode.c:193 |#4 0x080716c1 in foreach_mountpoint (handler=0x8070e2f <blocks_entry>, arg=0xf3de300c) at mount/fs_foreachmountpoint.c:169 |#5 0x08071399 in mount_read (filep=0xf3df4574, buffer=0xf3df4610 "...", buflen=1024) at mount/fs_procfs_mount.c:537 |#6 0x08069429 in procfs_read (filep=0xf3df4574, buffer=0xf3df4610 "...", buflen=1024) at procfs/fs_procfs.c:412 |#7 0x0806c339 in unionfs_read (filep=0xf3de219c, buffer=0xf3df4610 "...", buflen=1024) at unionfs/fs_unionfs.c:1026 |#8 0x080657a2 in file_read (filep=0xf3de219c, buf=0xf3df4610, nbytes=1024) at vfs/fs_read.c:110 |#9 0x0806581a in nx_read (fd=3, buf=0xf3df4610, nbytes=1024) at vfs/fs_read.c:175 |#10 0x08065847 in read (fd=3, buf=0xf3df4610, nbytes=1024) at vfs/fs_read.c:206 |#11 0x0805a242 in nsh_catfile (vtbl=0xf3df3f10, cmd=0xf3df4378 "df", filepath=0x808d5ed "/proc/fs/blocks") at nsh_fsutils.c:116 |#12 0x0805b1de in cmd_df (vtbl=0xf3df3f10, argc=1, argv=0xf3de32c0) at nsh_mntcmds.c:73 |#13 0x08056370 in nsh_command (vtbl=0xf3df3f10, argc=1, argv=0xf3de32c0) at nsh_command.c:1061 |#14 0x08053b16 in nsh_execute (vtbl=0xf3df3f10, argc=1, argv=0xf3de32c0, redirfile=0x0, oflags=0) at nsh_parse.c:741 |#15 0x08055998 in nsh_parse_command (vtbl=0xf3df3f10, cmdline=0xf3df4378 "df") at nsh_parse.c:2578 |#16 0x08055a7b in nsh_parse (vtbl=0xf3df3f10, cmdline=0xf3df4378 "df") at nsh_parse.c:2662 |#17 0x0805d691 in nsh_session (pstate=0xf3df3f10, login=1 '\001', argc=1, argv=0xf3de34b0) at nsh_session.c:191 |#18 0x0805b542 in nsh_consolemain (argc=1, argv=0xf3de34b0) at nsh_consolemain.c:115 |#19 0x0805346c in nsh_main (argc=1, argv=0xf3de34b0) at nsh_main.c:168 |#20 0x0805075a in nxtask_startup (entrypt=0x805340a <nsh_main>, argc=1, argv=0xf3de34b0) at sched/task_startup.c:165 |#21 0x08049713 in nxtask_start () at task/task_start.c:144 |#22 0x00000000 in ?? () Change-Id: Ic4c7aff0ea50388a371c525745e817a787dabcca Signed-off-by: chao.an <anchao@xiaomi.com> |
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|---|---|---|
| .. | ||
| aio | ||
| binfs | ||
| cromfs | ||
| dirent | ||
| driver | ||
| fat | ||
| hostfs | ||
| inode | ||
| littlefs | ||
| mmap | ||
| mount | ||
| mqueue | ||
| nfs | ||
| nxffs | ||
| partition | ||
| procfs | ||
| romfs | ||
| semaphore | ||
| shm | ||
| smartfs | ||
| spiffs | ||
| tmpfs | ||
| unionfs | ||
| userfs | ||
| vfs | ||
| fs_initialize.c | ||
| Kconfig | ||
| Makefile | ||