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http://bugs.kde.org/show_bug.cgi?id=161457
Summary: kmail crashes when creating maildir folder on cifs
mounted filesystem
Product: kmail
Version: 1.9.9
Platform: Ubuntu Packages
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
AssignedTo: kdepim-bugs kde org
ReportedBy: peter.parzer med uni-heidelberg de
Version: 1.9.9 (using KDE 3.5.9)
Installed from: Ubuntu Packages
OS: Linux
Looking at the strace it seems that kmail tries to rename a file to the name of
an allready opened file. On the local file system this seem to work, but on an
cifs mounted filesystem this doesn't. Kmail continues without checking for
errors and crashes.
Here is my analysis of the strace:
# open .inbox.index (fd=13)
open("/home/parzerpeter/.kde/share/apps/kmail/mail/.inbox.index",
O_RDWR|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = 13
utime("/home/parzerpeter/.kde/share/apps/kmail/mail/inbox", NULL) = 0
utime("/home/parzerpeter/.kde/share/apps/kmail/mail/.inbox.index", NULL) = 0
utime("/home/parzerpeter/.kde/share/apps/kmail/mail/.inbox.index.ids", NULL) =
-1 ENOENT (No such file or directory)
umask(022) = 077
fcntl64(13, F_SETFD, FD_CLOEXEC) = 0
unlink("/home/parzerpeter/.kde/share/apps/kmail/mail/.inbox.index.temp") = -1
ENOENT (No such file or directory)
utime("/home/parzerpeter/.kde/share/apps/kmail/mail/inbox", NULL) = 0
umask(077) = 022
# open .inbox.index.temp (fd=14), .inbox.index is still open
open("/home/parzerpeter/.kde/share/apps/kmail/mail/.inbox.index.temp",
O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = 14
umask(022) = 077
fstat64(14, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
mmap2(NULL, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0xb550e000
write(14, "# KMail-Index V1506\n\0\10\0\0\0xV4\22\4\0\0"..., 33) = 33
_llseek(14, 0, [33], SEEK_CUR) = 0
fsync(14) = 0
# close .inbox.index.temp
close(14) = 0
munmap(0xb550e000, 16384) = 0
# rename .inbox.index.temp to .inbox.index, this fails since
# .inbox.index is still open
rename("/home/parzerpeter/.kde/share/apps/kmail/mail/.inbox.index.temp",
"/home/parzerpeter/.kde/share/apps/kmail/mail/.inbox.index") = -1 EINVAL
(Invalid argument)
# rename fails, maybe because .inbox.index is open,
# finally close .inbox.index, could have done before
# trying to rename .inbox.index.temp to .inbox.index
close(13) = 0
open("/home/parzerpeter/.kde/share/apps/kmail/mail/.inbox.index",
O_RDWR|O_LARGEFILE) = -1 ENOENT (No such file or directory)
# open fails, because .inbox.index is vanished, this is a bug
# in cifs which is also involved here, ignore all return codes
# and continue
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
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