This was the fix in 2.6.21 relative to 2.6.20: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=3360177c62e86f476c4f1a057e13163383652f7b http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=3360177c62e86f476c4f1a057e13163383652f7b I'm not sure but I think it can be directly applied to 2.6.20.
This was the fix in 2.6.21 relative to 2.6.20: git.kernel. org/?p= linux/kernel/ git/torvalds/ linux-2. 6.git;a= commitdiff; h=3360177c62e86 f476c4f1a057e13 163383652f7b git.kernel. org/?p= linux/kernel/ git/torvalds/ linux-2. 6.git;a= commitdiff_ plain;h= 3360177c62e86f4 76c4f1a057e1316 3383652f7b
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I'm not sure but I think it can be directly applied to 2.6.20.