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Re: [Xen-devel] [PATCH] Fix >4G i386 PAE grant table interface
| To: | "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, "Steven Rostedt" <srostedt@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] Fix >4G i386 PAE grant table interface |
| From: | "Jan Beulich" <jbeulich@xxxxxxxxxx> |
| Date: | Fri, 03 Nov 2006 09:42:49 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 03 Nov 2006 00:41:13 -0800 |
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| In-reply-to: | <454A2271.90000@xxxxxxxxxx> |
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>>> Steven Rostedt <srostedt@xxxxxxxxxx> 02.11.06 17:53 >>> >It has been discovered that i386 boxes with more than 4G of RAM would >randomly crash. It was traced to the interface of blktap using >gnttab_set_map_op. > >It would pass in the 64 bit pte entry, but the gnttab_set_map_op would >only take a 32 bit (on i386) unsigned long as a parameter. So we lose >the top 32bits. Could you use maddr_t here rather than uint64_t? For non-PAE i386 Linux, especially when using CONFIG_REGPARM, adding a useless argument slot seems wasteful... Keir - will this go into 3.0.3? Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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