On 2017-09-02 13:20, Rusty Russell wrote:
> > tools/ccanlint/ccanlint -s --deps-fail-ignore ccan/io/ && touch
> > ccan/io/.ok
> > io: Module examples with expected output give that output (examples_run):
> > FAIL
> > /tmp/ccanlint-24192.1804289383/example-_info-io.c:2:output '' didn't match
> > 'tr a-z a-z'
> >
> > io: Total score: 82/87 FAIL!
> > make: *** [Makefile:78: ccan/io/.ok] Error 1
> >
> > What's up?
>
> Hmm, can't reproduce here.
>
> Can you run this test manually?
>
> $ tools/ccanlint/ccanlint -k --target=examples_run ccan/io
> $ echo tr A-Z a-z | strace /tmp/ccanlint-*/example-_info-io tr A-Z a-z
>
> The output should show what's going wrong.
Attached. I can't make any sense of it w/o dropping to gdb.
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execve("/tmp/ccanlint-2217.1804289383/example-_info-io",
["/tmp/ccanlint-2217.1804289383/ex"..., "/tmp/ccanlint-28097.1804289383/e"...,
"tr", "A-Z", "a-z"], [/* 51 vars */]) = 0
brk(NULL) = 0x7ee000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f6c74233000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=114539, ...}) = 0
mmap(NULL, 114539, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f6c74217000
close(3) = 0
open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\7\2\0\0\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1680808, ...}) = 0
mmap(NULL, 3786968, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f6c73c74000
mprotect(0x7f6c73e07000, 2097152, PROT_NONE) = 0
mmap(0x7f6c74007000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x193000) = 0x7f6c74007000
mmap(0x7f6c7400d000, 14552, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f6c7400d000
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f6c74216000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f6c74215000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f6c74214000
arch_prctl(ARCH_SET_FS, 0x7f6c74215700) = 0
mprotect(0x7f6c74007000, 16384, PROT_READ) = 0
mprotect(0x60a000, 4096, PROT_READ) = 0
mprotect(0x7f6c74234000, 4096, PROT_READ) = 0
munmap(0x7f6c74217000, 114539) = 0
pipe([3, 4]) = 0
pipe([5, 6]) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x7f6c742159d0) = 4488
close(3) = 0
close(6) = 0
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE],
sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f6c73ca7690},
{sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
brk(NULL) = 0x7ee000
brk(0x80f000) = 0x80f000
fcntl(0, F_GETFL) = 0 (flags O_RDONLY)
fcntl(0, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
fcntl(4, F_GETFL) = 0x1 (flags O_WRONLY)
fcntl(4, F_SETFL, O_WRONLY|O_NONBLOCK) = 0
fcntl(5, F_GETFL) = 0 (flags O_RDONLY)
fcntl(5, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
fcntl(1, F_GETFL) = 0x8402 (flags
O_RDWR|O_APPEND|O_LARGEFILE)
fcntl(1, F_SETFL, O_RDWR|O_APPEND|O_NONBLOCK|O_LARGEFILE) = 0
poll([{fd=0, events=POLLIN}, {fd=-4}, {fd=5, events=POLLIN}, {fd=1,
events=POLLOUT}], 4, -1) = 3 ([{fd=0, revents=POLLIN|POLLHUP}, {fd=5,
revents=POLLIN}, {fd=1, revents=POLLOUT}])
read(0, "tr A-Z a-z\n", 4096) = 11
read(5, "\0", 4095) = 1
write(1, "\0", 1) = 1
poll([{fd=0, events=POLLIN}, {fd=4, events=POLLOUT}, {fd=5, events=POLLIN},
{fd=1, events=POLLOUT}], 4, -1) = 3 ([{fd=0, revents=POLLHUP}, {fd=4,
revents=POLLOUT}, {fd=1, revents=POLLOUT}])
close(0) = 0
write(4, "tr A-Z a-z\n", 11) = 11
close(4) = 0
poll([{fd=1, events=POLLOUT}, {fd=5, events=POLLIN}], 2, -1) = 1 ([{fd=1,
revents=POLLOUT}])
write(1, "\0", 1) = 1
poll([{fd=-1}, {fd=5, events=POLLIN}], 2, -1) = 1 ([{fd=5, revents=POLLIN}])
read(5, "r a-z a-z\n", 4094) = 10
poll([{fd=1, events=POLLOUT}, {fd=5, events=POLLIN}], 2, -1) = 2 ([{fd=1,
revents=POLLOUT}, {fd=5, revents=POLLHUP}])
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4488, si_uid=1000,
si_status=0, si_utime=0, si_stime=0} ---
write(1, " a-z a-z\n", 9 a-z a-z
) = 9
close(5) = 0
poll([{fd=1, events=POLLOUT}], 1, -1) = 1 ([{fd=1, revents=POLLOUT}])
write(1, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
18446744073709551607) = -1 EFAULT (Bad address)
close(1) = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 4488
exit_group(0) = ?
+++ exited with 0 +++_______________________________________________
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