http://bugzilla.kernel.org/show_bug.cgi?id=12861
Summary: Xorg fails to start "Failed to allocate space for kernel
memory manager"
Product: Drivers
Version: 2.5
KernelVersion: 2.6.29-rc5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI)
AssignedTo: [email protected]
ReportedBy: [email protected]
Distribution: Gentoo
Hardware Environment: macbook revision 2, intel gma950
Software Environment: xf86-video-intel-2.6.2 libdrm-2.4.4, gcc-4.3.3
Problem Description: Xorg fails to start
Sorry if I misscategorized this
I get
(EE) intel(0): Failed to allocate space for kernel memory manager
(==) intel(0): VideoRam: 16124 KB
(II) intel(0): Attempting memory allocation with tiled buffers.
(EE) intel(0): Failed to allocate framebuffer. Is your VideoRAM set too low?
(II) intel(0): Tiled allocation failed.
(WW) intel(0): Couldn't allocate tiled memory, fb compression disabled
(II) intel(0): Attempting memory allocation with untiled buffers.
(WW) intel(0): Failed to allocate EXA offscreen memory.
(II) intel(0): Untiled allocation failed.
(II) intel(0): Couldn't allocate 3D memory, disabling DRI.
(II) intel(0): Attempting memory allocation with untiled buffers.
(WW) intel(0): Failed to allocate EXA offscreen memory.
(II) intel(0): Untiled allocation failed.
(EE) intel(0): Couldn't allocate video memory
Unless I failed bisect this one is the bad commit ... doesn't make sense to me,
but I'm not a kernel developer.
fb5ae64fdde29236e1a15e0366946df7060f41f2 is first bad commit
commit fb5ae64fdde29236e1a15e0366946df7060f41f2
Author: Serge E. Hallyn <[email protected]>
Date: Fri Feb 13 14:04:21 2009 +0000
User namespaces: Only put the userns when we unhash the uid
uids in namespaces other than init don't get a sysfs entry.
For those in the init namespace, while we're waiting to remove
the sysfs entry for the uid the uid is still hashed, and
alloc_uid() may re-grab that uid without getting a new
reference to the user_ns, which we've already put in free_user
before scheduling remove_user_sysfs_dir().
Reported-and-tested-by: KOSAKI Motohiro <[email protected]>
Signed-off-by: Serge E. Hallyn <[email protected]>
Acked-by: David Howells <[email protected]>
Tested-by: Ingo Molnar <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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