Messages in this thread |  | | Date | Sat, 31 May 2003 12:14:48 -0700 | From | William Lee Irwin III <> | Subject | pgcl-2.5.70-bk5-2 |
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This release corrects a showstopping list handling bug in the pgd slab management code. When PAGE_MMUCOUNT > 1, the pgd : struct page relation becomes N:1, so that pgd_ctor() and pgd_dtor() may be called multiple times for each page dedicated to the pgd slab. The bug was that pgd_ctor() did an unconditional list_add(&page->lru, &pgd_list) and pgd_dtor() did an unconditional list_del(&page->lru, &pgd_list) regardless of whether the page backing the pgd's passed as an argument was already on the pgd_list. There was also a bug in pageattr.c where the pieces of a pgd slab page weren't iterated over when looping over pgd slab pages.
A minor highmem compilefix and a fixes for /proc/vmstat reporting inaccuracies are also included.
pgcl-2.5.70-bk5-2 survives a couple of hours of running dbench and tiobench in a loop.
Available as an incremental patch atop pgcl-2.5.70-bk5-1 from: ftp://ftp.kernel.org/pub/linux/kernel/people/wli/vm/pgcl/
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