The patch titled bootmem: print request details before BUG_ON(them) has been added to the -mm tree. Its filename is bootmem-print-request-details-before-bug_onthem.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: bootmem: print request details before BUG_ON(them) From: Johannes Weiner <hannes@xxxxxxxxxxx> Moving the request details print-out before the sanity checks that might panic() enables us to analyse invalid requests without having access to the line information of the stack dump. Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/bootmem.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff -puN mm/bootmem.c~bootmem-print-request-details-before-bug_onthem mm/bootmem.c --- a/mm/bootmem.c~bootmem-print-request-details-before-bug_onthem +++ a/mm/bootmem.c @@ -439,6 +439,10 @@ static void * __init alloc_bootmem_core( unsigned long fallback = 0; unsigned long min, max, start, sidx, midx, step; + bdebug("nid=%td size=%lx [%lu pages] align=%lx goal=%lx limit=%lx\n", + bdata - bootmem_node_data, size, PAGE_ALIGN(size) >> PAGE_SHIFT, + align, goal, limit); + BUG_ON(!size); BUG_ON(align & (align - 1)); BUG_ON(limit && goal + size > limit); @@ -446,10 +450,6 @@ static void * __init alloc_bootmem_core( if (!bdata->node_bootmem_map) return NULL; - bdebug("nid=%td size=%lx [%lu pages] align=%lx goal=%lx limit=%lx\n", - bdata - bootmem_node_data, size, PAGE_ALIGN(size) >> PAGE_SHIFT, - align, goal, limit); - min = bdata->node_min_pfn; max = bdata->node_low_pfn; _ Patches currently in -mm which might be from hannes@xxxxxxxxxxx are mm-more-likely-reclaim-madv_sequential-mappings.patch mm-apply_to_range-call-pte-function-with-lazy-updates.patch vmscan-shrink_active_list-reduce-lru_lock-hold-time.patch mm-check-for-no-mmaps-in-exit_mmap.patch mm-check-for-no-mmaps-in-exit_mmap-fix.patch bootmem-print-request-details-before-bug_onthem.patch dma_alloc_from_coherent-fix-fallback-to-generic-memory.patch dma_alloc_coherent-clean-it-up.patch dma-coherent-catch-oversized-requests-to-dma_alloc_from_coherent.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html