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[patch] libitm: Truncate undo log after rolling back.

From: Torvald Riegel <triegel at redhat dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Cc: Richard Henderson <rth at redhat dot com>, Aldy Hernandez <aldyh at redhat dot com>
Date: Sat, 14 Jan 2012 00:55:09 +0100
Subject: [patch] libitm: Truncate undo log after rolling back.

When rolling back the undo log, the previous code restored the previous
data values but didn't actually truncate the undo log.  So, on the next
restart of the transaction, we would be growing the undo log and
performing old undos again, leading to data corruption.

Committed to trunk as obvious.

Attachment: patch1
Description: Text document

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