Bug 159494
Summary: | IBM ACPI ultrabay eject crashes machine | ||
---|---|---|---|
Product: | [Fedora] Fedora | Reporter: | Derek Atkins <warlord> |
Component: | kernel | Assignee: | Alan Cox <alan> |
Status: | CLOSED UPSTREAM | QA Contact: | Brian Brock <bbrock> |
Severity: | high | Docs Contact: | |
Priority: | medium | ||
Version: | 3 | CC: | davej, wtogami |
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: | 2005-06-04 14:53:01 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
Derek Atkins
2005-06-02 22:40:55 UTC
Drive hotplug is not supported in 2.6 only 2.4 Um, where in the documentation does it say this? Everywhere I can read it seems to imply that Ultrabay Hotswap *IS* supported. From http://ibm-acpi.sourceforge.net/ ... he features currently supported are the following (see the README for detailed description): ... o UltraBay eject (bay) ... The site goes on to say: The ibm-acpi driver is part of kernel 2.6.10 and later (option CONFIG_ACPI_IBM). The version included in the kernel may be older than the latest release available from this web site. Moreover, the 2.6.11 FC3 kernel DOES have ibm_acpi installed and turned on, and my laptop DOES have the module loaded. SO... Drive hotplug SHOULD be supported, and I've definitely had reports from Debian users that they could hotswap their ultrabay drives from a 2.6.10 kernel. So pardon me, Alan, when I don't believe you when you say that IBM Ultrabay hotplug isn't supported in 2.6. Could you please show a reference that states that? I've already shown you two references that show that it SHOULD be supported (the first one, Docuementation/ibm-acpi.txt in the 2.6 source tree) was pointed out in the original bug report, the second just now). I've also seen ACPI scripts from another user running a different distro that had hotplug scripts for 2.6.x (x > 10), which further shows evidence that it SHOULD work... For example, see: http://theorie.physik.uni-wuerzburg.de/~arwagner/computer/T41p/#HotSwap <quote> With the ibm_acpi module from kernel 2.6.10 there is also the possibility for hotswapping of UltraBay-Devices, if you own several of them. I don't but at least I was able to safely remove my DVD and reattache it without any problems. </quote> My initial guess as to the problem is that cdrom subsystem is built into the kernel instead of built as a driver, but that's why I've opened this bug report. Drive hotplug for IDE has never been supported in 2.6. The ACPI layer may support controlling the ultra bay devices. The user you quote was just extremely lucky. I wrote and submitted patches long ago for IDE drive hotplug but the current maintainer has not only rejected them but since then has removed the basic support neccessary for their re-integration too. Please take this matter upstream with the IDE maintainer therefore. |