Bug 1628255
| Summary: | cups-filters: Sticky EOF behavior in glibc breaks descriptor concatenation using dup2 (breaks printing) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Zdenek Dohnal <zdohnal> | ||||||
| Component: | cups-filters | Assignee: | Zdenek Dohnal <zdohnal> | ||||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
| Severity: | unspecified | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 29 | CC: | aoliva, arjun, awilliam, codonell, debarshir, dj, fweimer, gmarr, jeischma, jpopelka, kparal, law, mfabian, mkasik, pfrankli, robatino, rth, siddhesh, twaugh, zdohnal | ||||||
| Target Milestone: | --- | Keywords: | CommonBugs | ||||||
| Target Release: | --- | ||||||||
| Hardware: | Unspecified | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | RejectedBlocker https://fedoraproject.org/wiki/Common_F29_bugs#cups-filters-fail | ||||||||
| Fixed In Version: | cups-filters-1.20.3-9.fc29 | Doc Type: | If docs needed, set a value | ||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2018-10-02 19:31:37 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Bug Depends On: | |||||||||
| Bug Blocks: | 1626996 | ||||||||
| Attachments: |
|
||||||||
|
Description
Zdenek Dohnal
2018-09-12 14:59:01 UTC
Created attachment 1482709 [details]
Good strace
Proposed as a Blocker for 29-final by Fedora user eischmann using the blocker tracking app because: This bug breaks printing over network for many printers, thus have a big impact on users. To reproduce it, you need to set up a network printer the default way via printers panel in GNOME Control Center. It doesn't affect cups-browsed. To be precise, 1) it can be reproduced even by creating the printer by lpadmin (with any device uri, even file device uri), through CUPS web interface and system-config-printer. Essential part for reproducing is to have file which needs to be run through filters before it is send to printer. This can be done by creating a printer with ppd. 2) printing from client through print queues discovered by cups-browsed will not work if server, which shares printers, is F29+ (or if it has glibc-2.28 or backported patch mentioned above), because filtering is affected. Cups-browsed uses design in which it sends unfiltered data to server, where filtering happens. So if server is affected by this issue, then printing through cups-browsed queues is no-go too. Only other way to avoid this issue is send the print data to a printer as unfiltered, e.g. raw. But this is unrecommended and shouldn't be used for other purposes than debugging. $ lp -d <printer> -o raw <file> Discussed during the 2018-09-17 blocker review meeting: [1] The decision to classify this bug as a "RejectedBlocker" was made as this is obviously an annoying bug for some, but the release criteria don't cover printing in any way and therefore this bug cannot be classified as a blocker. [1] https://meetbot.fedoraproject.org/fedora-blocker-review/2018-09-17/f29-blocker-review.2018-09-17-16.02.txt I was pointed to: https://sourceware.org/ml/libc-alpha/2018-09/msg00235.html https://github.com//OpenPrinting/cups-filters/issues/58 Geof, when you reject a high-profile annoying bug, please make sure it's at least tagged as a common bug. Thanks. Adding it now. glibc upstream will not revert this change and suggests that cups-filters should be fixed instead. Reassigning accordingly. cups-filters-1.20.3-8.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2018-4f7176aa5c cups-filters-1.20.3-8.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-4f7176aa5c cups-filters-1.20.3-9.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2018-26b38a126f cups-filters-1.20.3-9.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-26b38a126f cups-filters-1.20.3-9.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report. |