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KernelTrap: Memory Leak When Writing Audio CDs

Aug 19, 2004, 08:30 (6 Talkback[s])

"Kurt Garloff explained a bug in 2.6.8.1 causing a memory leak when writing audio CDs:

"'When using bounce buffers for SG_IO commands with unaligned buffers in blk_rq_map_user(), we should free the pages from blk_rq_unmap_user() which calls bio_uncopy_user() for the non-BIO_USER_MAPPED case. That function failed to free the pages for write requests.'

"Andrew Morton acknowledged the fix noting, 'this really should trigger a 2.6.8.2. We'll see...'"

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Related Story:
Linus Torvalds: Linux 2.6.8(Aug 14, 2004)