Hello,
I just built ran a quick test on coreutils GIT. I received a SEGV on
touch, and ran it under GDB.
Looks like a loop.
Cheers,
cer...@xango2:/build/buildd/coreutils$ gdb --args src/touch test
GNU gdb (GDB) 7.2-ubuntu
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type show copying
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This GDB was configured as x86_64-linux-gnu.
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/...
Reading symbols from /src/buildd/coreutils/src/touch...done.
(gdb) set pagination off
(gdb) r
Starting program: /src/buildd/coreutils/src/touch test
[Thread debugging using libthread_db enabled]
Program received signal SIGSEGV, Segmentation fault.
0x004073dc in fdutimens (fd=0, file=0x0, timespec=0x0) at utimens.c:193
193 if (dup2 (fd, fd) != fd)
(gdb) bt 3 full
#0 0x004073dc in fdutimens (fd=0, file=0x0, timespec=0x0) at
utimens.c:193
adjusted_timespec = {{tv_sec = 0, tv_nsec = 0}, {tv_sec = 0, tv_nsec =
0}}
ts = 0x0
adjustment_needed = 0
st = error reading variable st (Cannot access memory at address
0x7f5fef70)
#1 0x004072aa in fdutimens (fd=0, file=0x0, timespec=0x0) at
utimens.c:269
result = value optimized out
adjusted_timespec = {{tv_sec = 0, tv_nsec = 0}, {tv_sec = 0, tv_nsec =
0}}
ts = 0x0
adjustment_needed = value optimized out
st = {st_dev = 0, st_ino = 0, st_nlink = 0, st_mode = 0, st_uid = 0,
st_gid = 0, __pad0 = 0, st_rdev = 0, st_size = 0, st_blksize = 0, st_blocks =
0, st_atim = {tv_sec = 0, tv_nsec = 0}, st_mtim = {tv_sec = 0, tv_nsec = 0},
st_ctim = {tv_sec = 0, tv_nsec = 0}, __unused = {0, 0, 0}}
#2 0x004072aa in fdutimens (fd=0, file=0x0, timespec=0x0) at
utimens.c:269
result = value optimized out
adjusted_timespec = {{tv_sec = 0, tv_nsec = 0}, {tv_sec = 0, tv_nsec =
0}}
ts = 0x0
adjustment_needed = value optimized out
st = {st_dev = 0, st_ino = 0, st_nlink = 0, st_mode = 0, st_uid = 0,
st_gid = 0, __pad0 = 0, st_rdev = 0, st_size = 0, st_blksize = 0, st_blocks =
0, st_atim = {tv_sec = 0, tv_nsec = 0}, st_mtim = {tv_sec = 0, tv_nsec = 0},
st_ctim = {tv_sec = 0, tv_nsec = 0}, __unused = {0, 0, 0}}
(More stack frames follow...)
(gdb) bt -5 full
#38527 0x004072aa in fdutimens (fd=0, file=0x0, timespec=0x0) at
utimens.c:269
result = value optimized out
adjusted_timespec = {{tv_sec = 8589924528, tv_nsec = 0}, {tv_sec = 0,
tv_nsec = 4197073}}
ts = 0x0
adjustment_needed = value optimized out
st = {st_dev = 4197129, st_ino = 140737354130624, st_nlink =
140737488345056, st_mode = 4160562656, st_uid = 32767, st_gid = 4294957064,
__pad0 = 32767, st_rdev = 140737354129768, st_size = 255564379, st_blksize =
140737351936210, st_blocks = 0, st_atim = {tv_sec = 140737353950688, tv_nsec =
140733193388033}, st_mtim = {tv_sec = 0, tv_nsec = 1}, st_ctim = {tv_sec =
140737354129768, tv_nsec = 0}, __unused = {140737353950688, 1, 0}}
#38528 0x004072aa in fdutimens (fd=0, file=0x0, timespec=0x0) at
utimens.c:269
result = value optimized out
adjusted_timespec = {{tv_sec = 5, tv_nsec = 0}, {tv_sec = 0, tv_nsec =
140737351981093}}
ts = 0x0
adjustment_needed = value optimized out
st = {st_dev = 29848917, st_ino = 2, st_nlink = 140737349750208,
st_mode = 0, st_uid = 0, st_gid = 4152746968, __pad0 = 32767, st_rdev =
140737354115432, st_size = 0, st_blksize = 4294967295, st_blocks = 24, st_atim
= {tv_sec = 1, tv_nsec = 6336552}, st_mtim = {tv_sec = 0, tv_nsec = 1}, st_ctim
= {tv_sec = 0, tv_nsec = 0}, __unused = {140737351953297, 1, 0}}
#38529 0x004024e2 in fdutimensat (fd=0, dir=-100, file=0x7fffde74
test, ts=0x0, atflag=0) at fdutimensat.c:48
result = 1
#38530 0x00401f21 in touch (argc=2, argv=0x7fffdad8) at touch.c:166
ok = value optimized out
fd = 0
open_errno = 0
t = 0x77929f97
#38531 main (argc=2, argv=0x7fffdad8) at touch.c:432
c = value optimized out
date_set = value optimized out
ok = true
flex_date = value optimized out
(gdb) list
188 if (fd 0)
189 {
190 errno = EBADF;
191 return -1;
192 }
193 if (dup2 (fd, fd) != fd)
194 return -1;
195 }
196
197 /* Some Linux-based NFS clients are buggy, and mishandle time stamps
(gdb)
cer...@xango2:/build/buildd/coreutils$ src/touch --version
touch (GNU coreutils) 8.5.154-2dd21
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html.
This is free software: you are free to change
