Zhou Zheng Sheng has posted comments on this change.
Change subject: call sync before umount in mkFloppyFs
......................................................................
Patch Set 2: (1 inline comment)
@Sandro Bonazzola, thanks for the bugzilla information. I think this bug is not
related to the bugs you pointed out. When those bugs are triggered, the loop
device can not be umount until reboot, but my bug is that if we (sleep 2
seconds | lsof the mount point | sync), umount will work. So it's a different
bug.
....................................................
File vdsm/mkimage.py
Line 83: m.mount(mntOpts='loop')
Line 84: try:
Line 85: _decodeFilesIntoDir(files, dirname)
Line 86: # flush changes to disk before we umount
Line 87: # otherwise umount raises "device busy" exception on some
machines
0. Why some multi-line comments are displayed as one line? In the e-mail the
text is correct, while in the web interface the multi-line comments turn into
one line. What's going on?
1. my kernel version
Linux zhshzhouf17 3.5.1-1.fc17.x86_64 #1 SMP Thu Aug 9 17:50:43 UTC 2012 x86_64
x86_64 x86_64 GNU/Linux
glibc version
glibc-2.15-51.fc17.x86_64
2. I wrote a script to reproduce the problem, this script mimics mkFloppyFs
behavior.
#!/usr/bin/bash
mkdir tmpMount
/usr/sbin/mkfs.msdos -C floppy.img 1440
/usr/bin/mount -o loop floppy.img tmpMount
echo '123'>tmpMount/tst1.txt
echo '123'>tmpMount/tst2.txt
echo '123'>tmpMount/tst3.txt
echo '123'>tmpMount/tst4.txt
echo '123'>tmpMount/tst5.txt
echo '123'>tmpMount/tst6.txt
echo '123'>tmpMount/tst7.txt
echo '123'>tmpMount/tst8.txt
echo '123'>tmpMount/tst9.txt
/usr/bin/umount -f tmpMount
rm -rf tmpMount floppy.img
When I run the script, it prints as follow.
# LC_ALL=C ./testumount.sh
mkfs.msdos 3.0.12 (29 Oct 2011)
umount: /home/edward/src/tmpMount: target is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
rm: cannot remove `tmpMount': Device or resource busy
When I "lsof +D" the mount point, no one is occupying the directory and files,
but there is a waring says "lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon
file system /run/user/edward/gvfs Output information may be incomplete."
As long as this script fails to umount, mkFloppyFs will fail too.
3. Then I strace the mount and umount in the script, the results are as follow.
----------------- mount.log -----------------
execve("/usr/bin/mount", ["/usr/bin/mount", "-o", "loop", "floppy.img",
"tmpMount"], [/* 52 vars */]) = 0
brk(0) = 0x7fcbe8407000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fcbe7e56000
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=135882, ...}) = 0
mmap(NULL, 135882, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fcbe7e34000
close(3) = 0
open("/lib64/libmount.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220x\0h:\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=183096, ...}) = 0
mmap(NULL, 2275512, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fcbe7a0c000
mprotect(0x7fcbe7a36000, 2097152, PROT_NONE) = 0
mmap(0x7fcbe7c36000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2a000) = 0x7fcbe7c36000
close(3) = 0
open("/lib64/libblkid.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240j\0F6\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=162496, ...}) = 0
mmap(NULL, 2255080, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fcbe77e5000
mprotect(0x7fcbe7809000, 2093056, PROT_NONE) = 0
mmap(0x7fcbe7a08000, 16384, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x23000) = 0x7fcbe7a08000
close(3) = 0
open("/lib64/libuuid.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\26\200@6\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=21696, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fcbe7e33000
mmap(NULL, 2113960, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fcbe75e0000
mprotect(0x7fcbe75e4000, 2093056, PROT_NONE) = 0
mmap(0x7fcbe77e3000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fcbe77e3000
close(3) = 0
open("/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300_\200:6\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=128888, ...}) = 0
mmap(NULL, 2230304, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fcbe73bf000
mprotect(0x7fcbe73dd000, 2093056, PROT_NONE) = 0
mmap(0x7fcbe75dc000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1d000) = 0x7fcbe75dc000
mmap(0x7fcbe75de000, 6176, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fcbe75de000
close(3) = 0
open("/lib64/libsepol.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320@\0\0\0\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=264712, ...}) = 0
mmap(NULL, 2361600, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fcbe717e000
mprotect(0x7fcbe71be000, 2093056, PROT_NONE) = 0
mmap(0x7fcbe73bd000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3f000) = 0x7fcbe73bd000
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@\30\00296\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=2065560, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fcbe7e32000
mmap(NULL, 3892376, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fcbe6dc7000
mprotect(0x7fcbe6f73000, 2097152, PROT_NONE) = 0
mmap(0x7fcbe7173000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ac000) = 0x7fcbe7173000
mmap(0x7fcbe7179000, 17560, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fcbe7179000
close(3) = 0
open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\16\30096\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=22480, ...}) = 0
mmap(NULL, 2109704, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fcbe6bc3000
mprotect(0x7fcbe6bc6000, 2093056, PROT_NONE) = 0
mmap(0x7fcbe6dc5000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fcbe6dc5000
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fcbe7e31000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fcbe7e2f000
arch_prctl(ARCH_SET_FS, 0x7fcbe7e2f840) = 0
mprotect(0x7fcbe7173000, 16384, PROT_READ) = 0
mprotect(0x7fcbe6dc5000, 4096, PROT_READ) = 0
mprotect(0x7fcbe75dc000, 4096, PROT_READ) = 0
mprotect(0x7fcbe77e3000, 4096, PROT_READ) = 0
mprotect(0x7fcbe7a08000, 12288, PROT_READ) = 0
mprotect(0x7fcbe7c36000, 4096, PROT_READ) = 0
mprotect(0x7fcbe8062000, 4096, PROT_READ) = 0
mprotect(0x7fcbe7e57000, 4096, PROT_READ) = 0
munmap(0x7fcbe7e34000, 135882) = 0
statfs("/sys/fs/selinux", {f_type=0xf97cff8c, f_bsize=4096, f_blocks=0,
f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255,
f_frsize=4096}) = 0
statfs("/sys/fs/selinux", {f_type=0xf97cff8c, f_bsize=4096, f_blocks=0,
f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255,
f_frsize=4096}) = 0
stat("/sys/fs/selinux", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
brk(0) = 0x7fcbe8407000
brk(0x7fcbe8428000) = 0x7fcbe8428000
getuid() = 0
geteuid() = 0
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
lstat("/etc/mtab", {st_mode=S_IFLNK|0777, st_size=12, ...}) = 0
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
stat("/run", {st_mode=S_IFDIR|0755, st_size=1580, ...}) = 0
lstat("/run/mount/utab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("/run/mount/utab", O_RDWR|O_CREAT, 0644) = 3
close(3) = 0
gettid() = 24452
open("/proc/self/task/24452/attr/current", O_RDONLY) = 3
read(3, "unconfined_u:unconfined_r:unconf"..., 4095) = 54
close(3) = 0
getcwd("/home/edward/src", 4095) = 17
readlink("/home/edward/src/floppy.img", 0x7fff37dfd310, 4096) = -1 EINVAL
(Invalid argument)
uname({sys="Linux", node="zhshzhouf17", ...}) = 0
stat("/dev/loop-control", {st_mode=S_IFCHR|0600, st_rdev=makedev(10, 237),
...}) = 0
lstat("/etc/mtab", {st_mode=S_IFLNK|0777, st_size=12, ...}) = 0
open("/proc/self/mountinfo", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fcbe7e55000
read(3, "15 21 0:3 / /proc rw,nosuid,node"..., 1024) = 1024
read(3, "relatime - cgroup cgroup rw,cpus"..., 1024) = 1024
read(3, "s configfs rw\n38 17 0:12 / /dev/"..., 1024) = 811
read(3, "", 1024) = 0
close(3) = 0
munmap(0x7fcbe7e55000, 4096) = 0
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
stat("/run", {st_mode=S_IFDIR|0755, st_size=1580, ...}) = 0
stat("/run/mount/utab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("/run/mount/utab", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fcbe7e55000
read(3, "", 4096) = 0
close(3) = 0
munmap(0x7fcbe7e55000, 4096) = 0
getcwd("/home/edward/src", 4095) = 17
readlink("/home/edward/src/tmpMount", 0x7fff37dfd030, 4096) = -1 EINVAL
(Invalid argument)
open("/dev/loop-control", O_RDWR) = 3
ioctl(3, LOOP_CTL_GET_FREE) = 0
close(3) = 0
readlink("/home", 0x7fff37dfd060, 4096) = -1 EINVAL (Invalid argument)
readlink("/home/edward", 0x7fff37dfd060, 4096) = -1 EINVAL (Invalid argument)
readlink("/home/edward/src", 0x7fff37dfd060, 4096) = -1 EINVAL (Invalid
argument)
readlink("/home/edward/src/floppy.img", 0x7fff37dfd060, 4096) = -1 EINVAL
(Invalid argument)
open("/home/edward/src/floppy.img", O_RDWR) = 3
open("/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 0x3) = 0
close(3) = 0
ioctl(4, LOOP_SET_STATUS64, {offset=0, number=0, flags=LO_FLAGS_AUTOCLEAR,
file_name="/home/edward/src/floppy.img", ...}) = 0
stat("/dev/loop0", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 0), ...}) = 0
open("/sys/dev/block/7:0", O_RDONLY) = 3
openat(3, "loop/autoclear", O_RDONLY) = 5
fcntl(5, F_GETFL) = 0x8000 (flags O_RDONLY|O_LARGEFILE)
fstat(5, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fcbe7e55000
lseek(5, 0, SEEK_CUR) = 0
read(5, "1\n", 4096) = 2
lseek(5, 1, SEEK_SET) = 1
close(5) = 0
munmap(0x7fcbe7e55000, 4096) = 0
openat(3, "ro", O_RDONLY) = 5
fcntl(5, F_GETFL) = 0x8000 (flags O_RDONLY|O_LARGEFILE)
fstat(5, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fcbe7e55000
lseek(5, 0, SEEK_CUR) = 0
read(5, "0\n", 4096) = 2
lseek(5, 1, SEEK_SET) = 1
close(5) = 0
munmap(0x7fcbe7e55000, 4096) = 0
close(3) = 0
access("/dev/loop0", F_OK) = 0
open("/dev/loop0", O_RDONLY) = 3
fadvise64(3, 0, 0, POSIX_FADV_RANDOM) = 0
fstat(3, {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 0), ...}) = 0
uname({sys="Linux", node="zhshzhouf17", ...}) = 0
ioctl(3, BLKGETSIZE64, 1474560) = 0
lseek(3, 0, SEEK_SET) = 0
read(3, "\353<\220mkdosfs\0\0\2\1\1\0\2\340\0@\v\360\t\0\22\0\2\0\0\0\0\0"...,
1024) = 1024
lseek(3, 9728, SEEK_SET) = 9728
read(3, "\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", 32)
= 32
lseek(3, 15872, SEEK_SET) = 15872
read(3, "\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"...,
512) = 512
open("/sys/dev/block/7:0", O_RDONLY) = 5
newfstatat(5, "partition", 0x7fff37dfe0c0, 0) = -1 ENOENT (No such file or
directory)
openat(5, "dm/uuid", O_RDONLY) = -1 ENOENT (No such file or directory)
close(5) = 0
close(3) = 0
stat("/sbin/mount.vfat", 0x7fff37dfe2e0) = -1 ENOENT (No such file or directory)
stat("/sbin/fs.d/mount.vfat", 0x7fff37dfe2e0) = -1 ENOENT (No such file or
directory)
stat("/sbin/fs/mount.vfat", 0x7fff37dfe2e0) = -1 ENOENT (No such file or
directory)
mount("/dev/loop0", "/home/edward/src/tmpMount", "vfat", MS_MGC_VAL, NULL) = 0
access("/home/edward/src/tmpMount", W_OK) = 0
close(4) = 0
exit_group(0) = ?
+++ exited with 0 +++
----------------- umount.log -----------------
execve("/usr/bin/umount", ["/usr/bin/umount", "-f", "tmpMount"], [/* 52 vars
*/]) = 0
brk(0) = 0x7fc1aba1a000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fc1ab668000
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=135882, ...}) = 0
mmap(NULL, 135882, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fc1ab646000
close(3) = 0
open("/lib64/libmount.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220x\0h:\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=183096, ...}) = 0
mmap(NULL, 2275512, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fc1ab21e000
mprotect(0x7fc1ab248000, 2097152, PROT_NONE) = 0
mmap(0x7fc1ab448000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2a000) = 0x7fc1ab448000
close(3) = 0
open("/lib64/libblkid.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240j\0F6\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=162496, ...}) = 0
mmap(NULL, 2255080, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fc1aaff7000
mprotect(0x7fc1ab01b000, 2093056, PROT_NONE) = 0
mmap(0x7fc1ab21a000, 16384, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x23000) = 0x7fc1ab21a000
close(3) = 0
open("/lib64/libuuid.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\26\200@6\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=21696, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fc1ab645000
mmap(NULL, 2113960, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fc1aadf2000
mprotect(0x7fc1aadf6000, 2093056, PROT_NONE) = 0
mmap(0x7fc1aaff5000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fc1aaff5000
close(3) = 0
open("/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300_\200:6\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=128888, ...}) = 0
mmap(NULL, 2230304, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fc1aabd1000
mprotect(0x7fc1aabef000, 2093056, PROT_NONE) = 0
mmap(0x7fc1aadee000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1d000) = 0x7fc1aadee000
mmap(0x7fc1aadf0000, 6176, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fc1aadf0000
close(3) = 0
open("/lib64/libsepol.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320@\0\0\0\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=264712, ...}) = 0
mmap(NULL, 2361600, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fc1aa990000
mprotect(0x7fc1aa9d0000, 2093056, PROT_NONE) = 0
mmap(0x7fc1aabcf000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3f000) = 0x7fc1aabcf000
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@\30\00296\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=2065560, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fc1ab644000
mmap(NULL, 3892376, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fc1aa5d9000
mprotect(0x7fc1aa785000, 2097152, PROT_NONE) = 0
mmap(0x7fc1aa985000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ac000) = 0x7fc1aa985000
mmap(0x7fc1aa98b000, 17560, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fc1aa98b000
close(3) = 0
open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\16\30096\0\0\0"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=22480, ...}) = 0
mmap(NULL, 2109704, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7fc1aa3d5000
mprotect(0x7fc1aa3d8000, 2093056, PROT_NONE) = 0
mmap(0x7fc1aa5d7000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fc1aa5d7000
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fc1ab643000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fc1ab641000
arch_prctl(ARCH_SET_FS, 0x7fc1ab641840) = 0
mprotect(0x7fc1aa985000, 16384, PROT_READ) = 0
mprotect(0x7fc1aa5d7000, 4096, PROT_READ) = 0
mprotect(0x7fc1aadee000, 4096, PROT_READ) = 0
mprotect(0x7fc1aaff5000, 4096, PROT_READ) = 0
mprotect(0x7fc1ab21a000, 12288, PROT_READ) = 0
mprotect(0x7fc1ab448000, 4096, PROT_READ) = 0
mprotect(0x7fc1ab86f000, 4096, PROT_READ) = 0
mprotect(0x7fc1ab669000, 4096, PROT_READ) = 0
munmap(0x7fc1ab646000, 135882) = 0
statfs("/sys/fs/selinux", {f_type=0xf97cff8c, f_bsize=4096, f_blocks=0,
f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255,
f_frsize=4096}) = 0
statfs("/sys/fs/selinux", {f_type=0xf97cff8c, f_bsize=4096, f_blocks=0,
f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255,
f_frsize=4096}) = 0
stat("/sys/fs/selinux", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
brk(0) = 0x7fc1aba1a000
brk(0x7fc1aba3b000) = 0x7fc1aba3b000
getuid() = 0
geteuid() = 0
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
lstat("/etc/mtab", {st_mode=S_IFLNK|0777, st_size=12, ...}) = 0
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
stat("/run", {st_mode=S_IFDIR|0755, st_size=1580, ...}) = 0
lstat("/run/mount/utab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("/run/mount/utab", O_RDWR|O_CREAT, 0644) = 3
close(3) = 0
lstat("/etc/mtab", {st_mode=S_IFLNK|0777, st_size=12, ...}) = 0
open("/proc/self/mountinfo", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fc1ab667000
read(3, "15 21 0:3 / /proc rw,nosuid,node"..., 1024) = 1024
read(3, "relatime - cgroup cgroup rw,cpus"..., 1024) = 1024
read(3, "s configfs rw\n38 17 0:12 / /dev/"..., 1024) = 969
read(3, "", 1024) = 0
close(3) = 0
munmap(0x7fc1ab667000, 4096) = 0
getuid() = 0
geteuid() = 0
getgid() = 0
getegid() = 0
prctl(PR_GET_DUMPABLE) = 1
stat("/run", {st_mode=S_IFDIR|0755, st_size=1580, ...}) = 0
stat("/run/mount/utab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("/run/mount/utab", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fc1ab667000
read(3, "", 4096) = 0
close(3) = 0
munmap(0x7fc1ab667000, 4096) = 0
getcwd("/home/edward/src", 4095) = 17
readlink("/home/edward/src/tmpMount", 0x7fffe17fc550, 4096) = -1 EINVAL
(Invalid argument)
stat("/sbin/umount.vfat", 0x7fffe17fd530) = -1 ENOENT (No such file or
directory)
stat("/sbin/fs.d/umount.vfat", 0x7fffe17fd530) = -1 ENOENT (No such file or
directory)
stat("/sbin/fs/umount.vfat", 0x7fffe17fd530) = -1 ENOENT (No such file or
directory)
umount("/home/edward/src/tmpMount", MNT_FORCE) = -1 EBUSY (Device or resource
busy)
write(2, "umount: ", 8umount: ) = 8
write(2, "/home/edward/src/tmpMount: targe"..., 155/home/edward/src/tmpMount:
target is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))) = 155
write(2, "\n", 1
) = 1
exit_group(32) = ?
+++ exited with 32 +++
In the umount.log, I can not find any useful information.
Line 88: storage.misc.syncFileSystem()
Line 89: finally:
Line 90: m.umount(force=True)
Line 91: finally:
--
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To unsubscribe, visit http://gerrit.ovirt.org/settings
Gerrit-MessageType: comment
Gerrit-Change-Id: I708e70aa1e898b32bb3c1009d411389d7adbe549
Gerrit-PatchSet: 2
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Zhou Zheng Sheng <zhshz...@linux.vnet.ibm.com>
Gerrit-Reviewer: Dan Kenigsberg <dan...@redhat.com>
Gerrit-Reviewer: Mark Wu <wu...@linux.vnet.ibm.com>
Gerrit-Reviewer: Sandro Bonazzola <sandro.bonazz...@gmail.com>
Gerrit-Reviewer: ShaoHe Feng <shao...@linux.vnet.ibm.com>
Gerrit-Reviewer: Zhou Zheng Sheng <zhshz...@linux.vnet.ibm.com>
Gerrit-Reviewer: oVirt Jenkins CI Server
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