On Wed, Aug 12, 2009 at 11:01 AM, Ravi Channavajhala<ravi.channavajh...@dciera.com> wrote: > On Wed, Aug 12, 2009 at 9:53 AM, Jeremy Allison<j...@samba.org> wrote: >> On Wed, Aug 12, 2009 at 08:51:51AM +0530, ravi channavajhala wrote: >>> Hi Jeremy, >>> >>> Why would the file name be an issue here? It is not just one file, several >>> files are getting affected. I followed your earlier discussion on the issue >>> way back in 2002, can you suggest something to try. Really, I will take >>> whatever I can get. >> >> Firstly, let's keep the list CC:ed so we keep >> everyone up to date. I'm asking what file name >> the fcntl is blocked in, as I want to know if >> this is a Samba tdb, or a file the server is >> trying to access. The Samba server should never >> make a blocking fcntl lock call on a user data >> file, but will make such calls on tdb files. >> >> So please let me know what file the fcntl syscall >> is blocked in. Thanks, >> >> Jeremy. > > Sorry I must have not used reply to all. Anyway, here is how I > trussed. I had the user open a file, and then capture the system > calls made with truss. The fcntl appears blocking on a user file, > but I might be incorrect because I didnt really see which file the > file descriptor belonged to (the very first two lines of truss show > fcntl, no other information). Either way, if this is blocking on tbd > file what possible recourse I can apply? Thanks for your help.
FWIW, this is what I see on Solaris 10 (Sun's stock Samba bundled with OS) # pstack 1968 1968: /usr/sfw/sbin/smbd -D ff049c64 fcntl (a, 23, ffbff750) ff0398c0 fcntl (a, 23, ffbff750, a, fee02a00, ff0c72b4) + 18 00272ec0 tdb_brlock (448180, 22dc, 2, 23, 0, 1) + 90 002731dc tdb_lock (448180, 88d, 2, 20, 18ec34, 401c98) + 17c 001ff048 ???????? (fffa7038, 43d960, 1d3d8, 453660, 9ea5, 453670) 001f8538 is_locked (43d960, feff, 0, 1000, 0, 0) + 1e8 000926a4 reply_read_and_X (495ca8, 4751f0, 3f, 43d960, 20000, 0) + 2ec 000d4c64 ???????? (495ca8, 454da0, 4751f0, 3f, 20000, 0) 000d4db8 ???????? (9400, 4751f0, 3f, 20000, 9400, 32cf4c) 000d5060 ???????? (454da0, 4751f0, 0, 1, 401c98, 6c00) 000d634c smbd_process (fff58830, 6c7c, 401c98, 93a80, 20441, 17d) + 1e4 0032f028 main (0, 392800, 1, 40aacc, 40ca28, 0) + afc 0004dda8 _start (0, 0, 0, 0, 0, 0) + 108 # truss -v all -aef -p 1968 1968: *** SUID: ruid/euid/suid = 0 / 2110 / 2110 *** 1968: *** SGID: rgid/egid/sgid = 0 / 2110 / 2110 *** 1968: psargs: /usr/sfw/sbin/smbd -D 1968: fcntl(10, F_SETLKW64, 0xFFBFF750) (sleeping...) 1968: typ=F_WRLCK whence=SEEK_SET start=8924 len=1 sys=3 pid=0 Now on Solaris 9 (Compiled with gcc) #truss -aef -v all -p 3623 3623: *** SUID: ruid/euid/suid = 0 / 1598 / 1598 *** 3623: *** SGID: rgid/egid/sgid = 0 / 1598 / 1598 *** 3623: psargs: /usr/local/samba/sbin/smbd -D -d 3 -s /usr/local/samba/etc/smb.conf 3623: fcntl(25, F_GETLK64, 0xFFBFF100) (sleeping...) 3623: typ=F_RDLCK whence=SEEK_SET start=0 len=512 sys=0 pid=0 #pstack 3623 3623: /usr/local/samba/sbin/smbd -D -d 3 -s /usr/local/samba/etc/smb.conf 00000000 fcntl (19, 21, ffbff100) #pflags 3623 3623: /usr/local/samba/sbin/smbd -D -d 3 -s /usr/local/samba/etc/smb.conf data model = _ILP32 flags = PR_ORPHAN /1: flags = PR_PCINVAL|PR_ASLEEP [ fcntl(0x19,0x21,0xffbff100) ] sigmask = 0x00011080,0x00000000 -- Ravi Channavajhala http://www.dciera.com -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba