Re: Buddy allocator - help! I thought I understood this

From: Alex Bligh - linux-kernel (linux-kernel@alex.org.uk)
Date: Wed Sep 05 2001 - 15:44:38 EST

Next message: Wietse Venema: "Re: ioctl SIOCGIFNETMASK: ip alias bug 2.4.9 and 2.2.19"
Previous message: Peter Rival: "Re: io_request_lock/queue_lock patch"
In reply to: Alex Bligh - linux-kernel: "Buddy allocator - help! I thought I understood this"
Next in thread: Linus Torvalds: "Re: Buddy allocator - help! I thought I understood this"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

thanks for the responses. FWIW:

> (NB, if this is a code bug rather than local brain
> bug, this explains a lot)

It's was a transient local brain bug. The bit
is shared between two pages of the same order.

> 101 index = page_idx >> (1 + order);
I missed this today ^^^

And hence my previous patch did have a bug,
for arcane reasons; I'll resubmit it if
it works.

--
Alex Bligh
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Next message: Wietse Venema: "Re: ioctl SIOCGIFNETMASK: ip alias bug 2.4.9 and 2.2.19"
Previous message: Peter Rival: "Re: io_request_lock/queue_lock patch"
In reply to: Alex Bligh - linux-kernel: "Buddy allocator - help! I thought I understood this"
Next in thread: Linus Torvalds: "Re: Buddy allocator - help! I thought I understood this"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Fri Sep 07 2001 - 21:00:32 EST