Bug 4272
Summary: | sendmail/rpm/elm locking issues | ||
---|---|---|---|
Product: | [Retired] Red Hat Linux | Reporter: | tpavlic |
Component: | nfs-utils | Assignee: | Michael K. Johnson <johnsonm> |
Status: | CLOSED CURRENTRELEASE | QA Contact: | |
Severity: | high | Docs Contact: | |
Priority: | high | ||
Version: | 7.0 | CC: | tpavlic |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i386 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2003-01-24 18:15:57 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
tpavlic
1999-07-30 16:00:04 UTC
The recompiled elm-2.5.1-1 still has problems locking on NFS mounted /var/spool/mail from solaris2.6 even though an strace shows that only fcntl locking is being used in the binary. *** Bug 4382 has been marked as a duplicate of this bug. *** sendmail looks to have been compiled using the old file locking emulation from the old pre-2.2.x libraries. 2.2.x (2.1.x+) have completely gotten rid of the old file locking emulation and now use real BSD file locking. Because of this, sendmail (and any other program compiled with the old routines) will not be able to get any locks on an NFS share. Please recompile sendmail with the new libraries. rpm and elm are two other examples of this same problem. *** Bug 4383 has been marked as a duplicate of this bug. *** rpm looks like it has been compiled with the old file locking routines from the pre-2.1.x libraries. Because of this, it cannot write to any of my NFS shares. This is becoming a very tedious problem. This is the *THIRD* program I've found in RH6.0 that has not been compiled with the RH6.0 libraries! sendmail and elm are the two other programs. I had to recompile them myself in order to get them to work. (elm wouldn't work at all -- sendmail would cause a lockd error every time it sent mail) If you'd like an easy example of what I'm talking about, using the elm that comes with RH6.0, on an RH6.0 system, mount a spool directory via NFS. On the system on which the NFS share is mounted, run elm. Elm will not be able to get any locks. Recompile elm and it will be able to read mail just fine. Elm is not a big deal, but sendmail and rpm are. Please release updates to all of your programs that are not compiled with the new locking routines. ------- Additional Comments From jbj 08/06/99 13:24 ------- *** Bug 4393 has been marked as a duplicate of this bug. *** In order for RPM to correctly read and write to and from NFS shres, it needs to be recompiled. The 2.2.x kernel and the newest libraries have done away with the old file locking routines. Any program compiled with the old flock emulation (which has been now COMPLETELY replaced by real BSD file locking) needs to be recompiled with the new libraries in order to do locking correclty on NFS shares. Without recompiling those programs, they will not be able to lock on an NFS share and usually won't be able to read or write from or to them. I've had this problem with elm and sendmail and now rpm. (I've also had it with non-RedHat stuff like cucipop and the FrontPage Server Extensions) Everything I recompiled works fine now, but before I did, it was quite frustrating. Take a look in the Linux source tree: linux/Documentation/locks.txt for information about the new locking scheme. This is very important that you release updates to all programs that have this problem. Professional organizations use NFS often. It's quite tedious if we have to try and recompile everything that needs it. (Especially in cases like sendmail, where compiling requires configuration in order to produce the appropriate binary that has the same support as the one installed with the RPM) assigned to johnsonm Bug 4272 has been closed because of the major changes between 6.0 and 8.0 in the kernel, rpm, and file locking over NFS. Red Hat 6.0 is also deprecated and people using it should at least upgrade to 6.2 to see if the problem is duplicatable. If the problem can be duplicated in the 8.0 release, please re-open. |