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[87.205.2.211]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a838394716esm442433666b.146.2024.08.17.13.03.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Aug 2024 13:03:25 -0700 (PDT) In-Reply-To: Face: 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 VQ71WBKHHf5XCIgLUUtIcGSBPhdZIQorpEBrxsqT3GYgRpmicIqrsEgSZm3FG+iJbHYid0/wGj+iTGCXRsqQAAAABJRU5ErkJggg== X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:290280 Archived-At: This appears to be network synchronisation issue. I=E2=80=99ve run this program: ---------- >8 -------------------------------------------------- #include #include #include #include void create(char *path) { int ret =3D symlink("dummy", path); if (ret < 0) { printf("%s: %d %s\n", path, errno, strerror(errno)); } else { printf("%s: Ok\n", path); } } int check(char *path) { char buf[1024]; ssize_t ret =3D readlink(path, buf, 1024); if (ret >=3D 0) { printf("%s: %.*s\n", path, ret, buf); return 0; } int err =3D errno; printf("%s: %d %s\n", path, err, strerror(err)); return err; } int main(int argc, char **argv) { char *path =3D argc < 2 ? "bar" : argv[1]; create(path); int loop =3D 0; while (check(path) !=3D EINVAL && ++loop < 50) { usleep(100000); } return 0; } -------------------------------------------------- 8< ---------- and got the following: ---------- >8 -------------------------------------------------- /o/foo: 5 Input/output error /o/foo: 2 No such file or directory /o/foo: 2 No such file or directory /o/foo: 2 No such file or directory /o/foo: 2 No such file or directory /o/foo: 2 No such file or directory /o/foo: 2 No such file or directory /o/foo: 2 No such file or directory /o/foo: 2 No such file or directory /o/foo: 2 No such file or directory /o/foo: 2 No such file or directory /o/foo: 22 Invalid argument -------------------------------------------------- 8< ---------- It looks like symlink(2) fails with EIO while the server creates a regular file, however it takes the client to notice another second. If you=E2=80=99re still interested, here=E2=80=99s strace when I find-file = and then kill-current-buffer without saving: ---------- >8 -------------------------------------------------- faccessat2(AT_FDCWD, "/o/foo", F_OK, AT_EACCESS) =3D -= 1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) =3D -= 1 ENOENT (No such file or directory) readlinkat(AT_FDCWD, "/o", 0x7ffec38f7370, 1024) =3D -= 1 EINVAL (Invalid argument) readlinkat(AT_FDCWD, "/o/foo", 0x7ffec38f74d0, 1024) =3D -= 1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH) =3D -= 1 ENOENT (No such file or directory) readlinkat(AT_FDCWD, "/o", 0x7ffec38f72c0, 1024) =3D -= 1 EINVAL (Invalid argument) readlinkat(AT_FDCWD, "/o/foo", 0x7ffec38f7420, 1024) =3D -= 1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH) =3D -= 1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC) =3D -= 1 ENOENT (No such file or directory) readlinkat(AT_FDCWD, "/o/.#foo", 0x7ffec38f13e8, 8193) =3D -= 1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo", F_OK, AT_EACCESS) =3D -= 1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo", W_OK, AT_EACCESS) =3D -= 1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo", F_OK, AT_EACCESS) =3D -= 1 ENOENT (No such file or directory) readlinkat(AT_FDCWD, "/o/foo", 0x7ffec38f7470, 1024) =3D -= 1 ENOENT (No such file or directory) newfstatat(AT_FDCWD, "/o/foo", 0x7ffec38f7750, 0) =3D -= 1 ENOENT (No such file or directory) newfstatat(AT_FDCWD, "/o/foo", 0x7ffec38f77f0, 0) =3D -= 1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo,v", F_OK, AT_EACCESS) =3D -= 1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) =3D -= 1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) =3D -= 1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) =3D -= 1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) =3D -= 1 ENOENT (No such file or directory) newfstatat(AT_FDCWD, "/o/foo", 0x7ffec38f5860, 0) =3D -= 1 ENOENT (No such file or directory) symlink ("mpn@erwin.223853:1723847375", "/o/.#foo") =3D -= 1 EIO (Input/output error) readlinkat(AT_FDCWD, "/o/.#foo", 0x7ffec38f5ad8, 8193) =3D -= 1 EINVAL (Invalid argument) openat (AT_FDCWD, "/o/.#foo", O_RDONLY|O_NOFOLLOW|O_CLOEXEC) =3D 12 read (12, "", 8193) =3D 0 close (12) =3D 0 unlink ("/o/.#foo") =3D 0 -------------------------------------------------- 8< ---------- And this is strace when I find-file and then save-buffer: ---------- >8 -------------------------------------------------- faccessat2(AT_FDCWD, "/o/foo", F_OK, AT_EACCESS) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) = =3D -1 ENOENT (No such file or directory) readlinkat(AT_FDCWD, "/o", 0x7ffe65452010, 1024) = =3D -1 EINVAL (Invalid argument) readlinkat(AT_FDCWD, "/o/foo", 0x7ffe65452170, 1024) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH) = =3D -1 ENOENT (No such file or directory) readlinkat(AT_FDCWD, "/o", 0x7ffe65451f60, 1024) = =3D -1 EINVAL (Invalid argument) readlinkat(AT_FDCWD, "/o/foo", 0x7ffe654520c0, 1024) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC) = =3D -1 ENOENT (No such file or directory) readlinkat(AT_FDCWD, "/o/.#foo", 0x7ffe6544c088, 8193) = =3D -1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo", F_OK, AT_EACCESS) = =3D -1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo", W_OK, AT_EACCESS) = =3D -1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo", F_OK, AT_EACCESS) = =3D -1 ENOENT (No such file or directory) readlinkat(AT_FDCWD, "/o/foo", 0x7ffe65452110, 1024) = =3D -1 ENOENT (No such file or directory) newfstatat(AT_FDCWD, "/o/foo", 0x7ffe654523f0, 0) = =3D -1 ENOENT (No such file or directory) newfstatat(AT_FDCWD, "/o/foo", 0x7ffe65452490, 0) = =3D -1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo,v", F_OK, AT_EACCESS) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) = =3D -1 ENOENT (No such file or directory) newfstatat(AT_FDCWD, "/o/foo", 0x7ffe65450500, 0) = =3D -1 ENOENT (No such file or directory) symlink ("mpn@erwin.223938:1723847375", "/o/.#foo") = =3D -1 EIO (Input/output error) newfstatat(AT_FDCWD, "/o/foo", 0x7ffe65452690, 0) = =3D -1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo", F_OK, AT_EACCESS) = =3D -1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo,v", F_OK, AT_EACCESS) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY) = =3D -1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo", F_OK, AT_EACCESS) = =3D -1 ENOENT (No such file or directory) faccessat2(AT_FDCWD, "/o/foo", W_OK, AT_EACCESS) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH) = =3D -1 ENOENT (No such file or directory) newfstatat(AT_FDCWD, "/o/foo", 0x7ffe6544ff80, 0) = =3D -1 ENOENT (No such file or directory) symlink ("mpn@erwin.223938:1723847375", "/o/.#foo") = =3D -1 EEXIST (File exists) readlinkat(AT_FDCWD, "/o/.#foo", 0x7ffe65450078, 8193) = =3D -1 EINVAL (Invalid argument) openat (AT_FDCWD, "/o/.#foo", O_RDONLY|O_NOFOLLOW|O_CLOEXEC) = =3D 12 read (12, "", 8193) = =3D 0 close (12) = =3D 0 unlink ("/o/.#foo") = =3D 0 symlink ("mpn@erwin.223938:1723847375", "/o/.#foo") = =3D -1 EIO (Input/output error) openat (AT_FDCWD, "/o/foo", O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC, 0666) = =3D 12 write (12, "ao sneuhta soneht sanoteu snothe"..., 33) = =3D 33 close (12) = =3D 0 newfstatat(AT_FDCWD, "/o/foo", {st_mode=3DS_IFREG|0600, st_size=3D33, ...},= 0) =3D 0 readlinkat(AT_FDCWD, "/o/.#foo", 0x7ffe65450028, 8193) = =3D -1 ENOENT (No such file or directory) openat (AT_FDCWD, "/o/foo", O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH) = =3D 12 close (12) = =3D 0 -------------------------------------------------- 8< ---------- --=20 Best regards =E3=83=9F=E3=83=8F=E3=82=A6 =E2=80=9C=F0=9D=93=B6=F0=9D=93=B2=F0=9D=93=B7= =F0=9D=93=AA86=E2=80=9D =E3=83=8A=E3=82=B6=E3=83=AC=E3=83=B4=E3=82=A4=E3=83= =84 =C2=ABIf at first you don=E2=80=99t succeed, give up skydiving=C2=BB