Below is a description of what we're seeing with the 20070924 build on Crown Beach platforms. Charles Johnson Ultra-Mobility Group Platform Software Engineering Intel Corporation [EMAIL PROTECTED]
________________________________ From: Davis, TobinX B Sent: Monday, September 24, 2007 2:47 PM To: Johnson, Charles F Cc: Johnson, Donald K; Linn, David; Monroy, German; Parenteau, Paul A Subject: RE: FYI: Ubuntu UME is broken. I have a Fab C board with B1 chipset and Bios 52. The hang is the same point as reported in the unionfs email archive (http://www.fsl.cs.sunysb.edu/pipermail/unionfs/2007-September/005463.ht ml) against unionfs 2.1.3 (BUG at <path>/unionfs/fanout.h:128). The bug manifests AFTER installation, when booting off the live system. Multiple reboots are the same, and always within the same boot process (Loading manual drivers). In looking at the unionfs code, there was a change added for unionfs 2.1.4 with this note: I have the same bug, and tried not to inline unionfs_lower_inode_idx and unionfs_copy_attr_times to get a more complete trace (the bug reads fanout.h:133, but it's fanout.h:128 in the original source code). It happens in an union of a squashfs + tmpfs, in which the system pivot_roots. I can workaround it, but it is probably hidding a more complex issue. I have looked at the latest Ubuntu kernel code (git-pull) and they do not currently have this patch. As I am still learning how they build their kernels, I have not tested this patch to see if it works, but I am ramping up (should be able to test it today). Tobin
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