Bug 35552
Summary: | Unbinding device from snd-hda-intel: BUG NULL pointer dereference | ||
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Product: | Drivers | Reporter: | Luke-Jr (luke-jr+linuxbugs) |
Component: | Sound(ALSA) | Assignee: | Takashi Iwai (tiwai) |
Status: | RESOLVED OBSOLETE | ||
Severity: | normal | CC: | akpm, alan, perex |
Priority: | P1 | ||
Hardware: | All | ||
OS: | Linux | ||
Kernel Version: | 2.6.38, 2.6.39 | Subsystem: | |
Regression: | Yes | Bisected commit-id: |
Description
Luke-Jr
2011-05-21 18:45:15 UTC
Further details: This is unrelated to IOMMU. The BUG occurs when my script attempts to unbind snd-hda-intel. Skipping that step results in a functional VM. Moving to audio driver category... Could you try to copy 2.6.37 sound/pci/hda/* files into 2.6.38 and check whether the bug still occurs? If yes, the culprit is somewhere else. Built the kernel+modules, will test at next reboot (probably today; I have a new PSU to test). As I noticed this bug doesn't occur with qemu's "hda", I feel it relevant to mention I was *only* attempting to unbind the Radeon 5850, not the onboard sound. 2.6.28.8 with sound/pci/hda from 2.6.37.5: Oops |