Re: Fwd: [bug #17877] Invalid "No such file or directory" error on filesystem without stable inode numbers

[Miklos Szeredi]

> That's close.
> To clarify: with the current fts implementation, the interval between the
> initial lstat and subsequent open of the same directory may be arbitrarily
> long, but only for 2nd or subsequent command-line arguments -- which
> usually translates to 2nd or subsequent members of the argv array that
> is passed to fts_open.

Here's a longer strace snippet for 'find /tmp/x' (find-4.3.1+patch).
Note, that lstat("b") and open("b") could be arbitrarily far depending
on the size of the tree under "a".

open(".", O_RDONLY|O_LARGEFILE)         = 3
fchdir(3)                               = 0
lstat64("/tmp/x", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open(".", O_RDONLY|O_NONBLOCK|O_NOCTTY|O_LARGEFILE|O_DIRECTORY) = 4
fchdir(4)                               = 0
fstat64(1, {st_mode=S_IFCHR|0666, st_rdev=makedev(1, 3), ...}) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbfd3f674) = -1 ENOTTY (Inappropriate 
ioctl for device)
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 
0xb7f2d000
open("/tmp/x", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 5
fstat64(5, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fcntl64(5, F_SETFD, FD_CLOEXEC)         = 0
fstat64(5, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fchdir(5)                               = 0
getdents64(5, /* 7 entries */, 4096)    = 168
lstat64("a", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat64("b", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
getdents64(5, /* 0 entries */, 4096)    = 0
close(5)                                = 0
lstat64("7", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("a", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 5
fstat64(5, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fcntl64(5, F_SETFD, FD_CLOEXEC)         = 0
fstat64(5, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fchdir(5)                               = 0
getdents64(5, /* 5 entries */, 4096)    = 120
getdents64(5, /* 0 entries */, 4096)    = 0
close(5)                                = 0
lstat64("1", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("..", O_RDONLY|O_NONBLOCK|O_NOCTTY|O_LARGEFILE|O_DIRECTORY) = 5
fstat64(5, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fchdir(5)                               = 0
close(5)                                = 0
open("b", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 5
fstat64(5, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fcntl64(5, F_SETFD, FD_CLOEXEC)         = 0
fstat64(5, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fchdir(5)                               = 0
getdents64(5, /* 5 entries */, 4096)    = 120
getdents64(5, /* 0 entries */, 4096)    = 0
close(5)                                = 0
lstat64("4", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("..", O_RDONLY|O_NONBLOCK|O_NOCTTY|O_LARGEFILE|O_DIRECTORY) = 5
fstat64(5, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fchdir(5)                               = 0
close(5)                                = 0
lstat64("8", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
fchdir(4)                               = 0
fchdir(4)                               = 0
close(4)                                = 0
write(1, "/tmp/x\n/tmp/x/7\n/tmp/x/a\n/tmp/x/"..., 118) = 118