Bug 1265978
| Summary: | [dvb] si2168 driver smashes stack on firmware load | ||||||
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| Product: | [Fedora] Fedora | Reporter: | Stuart Auchterlonie <sauchter> | ||||
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 22 | CC: | gansalmon, itamar, jonathan, kernel-maint, labbott, madhu.chinakonda, mchehab | ||||
| Target Milestone: | --- | Keywords: | Reopened | ||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | kernel-4.2.3-200.fc22 kernel-4.1.12-101.fc21 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2015-11-13 02:51:07 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: | |||||||
| Attachments: |
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I've also tried running the debug kernel to provide better information on this crash, however it crashed without dropping a vmcore kernel-4.2.3-200.fc22 has been submitted as an update to Fedora 22. https://bodhi.fedoraproject.org/updates/FEDORA-2015-c15f00eb95 kernel-4.2.3-200.fc22 has been pushed to the Fedora 22 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 'dnf --enablerepo=updates-testing update kernel' You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-c15f00eb95 kernel-4.2.3-200.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. kernel-4.1.12-100.fc21 has been submitted as an update to Fedora 21. https://bodhi.fedoraproject.org/updates/FEDORA-2015-fe9a93653f kernel-4.1.12-101.fc21 has been submitted as an update to Fedora 21. https://bodhi.fedoraproject.org/updates/FEDORA-2015-0253d1f070 kernel-4.1.12-101.fc21 has been pushed to the Fedora 21 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 'dnf --enablerepo=updates-testing update kernel' You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-0253d1f070 kernel-4.1.12-101.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. |
Created attachment 1076404 [details] full stacktrace Description of problem: The PCTV 292e DVB-T2 stick requires the si2168 driver to function. That driver in turn needs to load several firmware blobs into the stick. When the driver attempts to load 'dvb-demod-si2168-b40-01.fw' the kernel crashes with a stack protection error [ 806.649970] si2168 11-0064: found a 'Silicon Labs Si2168-B40' [ 806.660504] si2168 11-0064: downloading firmware from file 'dvb-demod-si2168-b40-01.fw' [ 806.667441] si2168 11-0064: firmware download failed -95 [ 806.667464] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffffa085708f I'll add the full backtrace as an attachment, and I have a vmcore available on request. Version-Release number of selected component (if applicable): kernel-4.1.7-200.fc22.x86_64 How reproducible: 100% Steps to Reproduce: 1. Insert stick into usb port, observe kernel detect it. 2. Attempt to scan for tv channels, which triggers a firmware load 3. crash.... Actual results: System crashes Expected results: System does not crash, firmware loads successfully, and stick is useable Additional info: