Bug 445978
Summary: | fusesmb aborts on multithreading operations | ||||||
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Product: | [Fedora] Fedora | Reporter: | Vasile Chelban <vchelban> | ||||
Component: | fuse-smb | Assignee: | Marcin Zajaczkowski <mszpak> | ||||
Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
Severity: | medium | Docs Contact: | |||||
Priority: | low | ||||||
Version: | 13 | CC: | iny | ||||
Target Milestone: | --- | ||||||
Target Release: | --- | ||||||
Hardware: | All | ||||||
OS: | Linux | ||||||
Whiteboard: | |||||||
Fixed In Version: | Doc Type: | Bug Fix | |||||
Doc Text: | Story Points: | --- | |||||
Clone Of: | Environment: | ||||||
Last Closed: | 2011-06-27 13:58:18 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: | |||||||
Attachments: |
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Description
Vasile Chelban
2008-05-10 21:57:29 UTC
Created attachment 305041 [details]
Fusesmb backtrace
Changing version to '9' as part of upcoming Fedora 9 GA. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping Thanks for your report and sorry for a delay. Unfortunately nor me nor fusesmb's author wasn't able to reproduce that. I tested on Fedora 8 (x86) with samba-3.0.28a-0.fc8, but only with share set up on my local machine (currently I don't have access to any remote smb share). I sent your backtrace to Vincent, maybe he will able to locate a problem using it. Btw, do you have a multicore/multiprocessor system? Yes, my system is F9 x86_64, with AMD Athlon X2 Dualcore processor. What kind of debuging information you will need? Maybe it happens only on multicore systems (I have a "normal" Athlon XP+)? You could disable your second core in BIOS o check it. I'm waiting for info from Vincent (the author) who already have your backtrace. I'll try to pass maxcpus=1 to kernel (I have no core number control options in BIOS setup) and write result here later. As far I remember, the bug is only present on F9 system, and not on F8 (i386, x86_64). Maybe it's somehow related to gcc upgrade in F9. Vincent had been suspecting that it could be a problem with new Samba 3.0 pre release, but it's also used in F8. It could be a problem with new gcc, the exception seems to be raised outside fusesmb code, but I don't know internals of fuse nor libsmb, so I only can guess :(. disabled smp support for kernel and there was no difference - fusesmb still crashes. I don't have good news. Vincent analyzed collected data and he things it's a problem with new Samba 3.2 (libsmbclient) which seems to "get worse with respect to thread-safety". Vincent has found the same problem reported on its IRC [1]. In version 3.2 there is available a new API (which will be used in the new versions of fusesmb - it's a lot of work and it can take some time), but Vincent is afraid that it won't help much. [1] - http://samba.sernet.de/irclog/2008/01/20080124-Thu.log (honkytonk, start with 01/24/08 19:01:54). We weren't able to reproduce that behavior on Samba 3.0. As a workaround you could try to link fusesmb with libsmbclient 3.0 statically. In case of problems I can try to help you with that. Otherwise you could use already mentioned -s switch (with all its cons :( ). I'm not sure what to do with F-9 build of fusesmb. I can write a big warning in package description area or make a bash script which will be run after "fusesmb" command, write a warning and call real fusesmb with -s switch. What do you think about that? I'd recommend making multithreading mode off by default for F9 builds (until this issue will be fixed). Not sure about big warning on each start, maybe it would be enough to document this change in README.fedora and rpm Changelog. As a workaround I modified a package to make multi-thereaded operations disable by defaul in F9+. There is a shell wrapper which calls real fusesmb binary with -s parameter. It can be downloaded from: http://timeoff.wsisiz.edu.pl/rpms/fuse-smb/fuse-smb-0.8.7-4.src.rpm Could you give it a try, before I commit it to the CVS repository? It can be rebuilt using "rpmbuild --rebuild fuse-smb-0.8.7-4.src.rpm". I can make i386 RPM for Fedora 9 if needed (but not x86_64 one). package has been built successfuly using mock (on F9 x86_64), and run as expected - gives warning and executes fusesmb-bin in singlethreaded mode. Changes could be commited to cvs. fuse-smb-0.8.7-4.fc9 has been submitted as an update for Fedora 9 I have commited changes to devel branch. It should be also available in testing repository for F9 soon. fuse-smb-0.8.7-4.fc9 has been pushed to the Fedora 9 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update fuse-smb'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F9/FEDORA-2008-6159 fuse-smb-0.8.7-4.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report. This message is a reminder that Fedora 9 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 9. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '9'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 9's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 9 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping Could you Vasile confirm it with newer Fedora release? Yes. Bug is still present. Package versions: samba-3.3.2-0.33.fc11.x86_64 fuse-2.7.4-3.fc11.x86_64 fuse-smb-0.8.7-5.fc11.x86_64 This message is a reminder that Fedora 11 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 11. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '11'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 11's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 11 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping This message is a reminder that Fedora 13 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 13. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '13'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 13's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 13 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping Fedora 13 changed to end-of-life (EOL) status on 2011-06-25. Fedora 13 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed. |