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[Xen-devel] mini-os: sbrk() doesn't allocate pages?
| To: | Xen Development Mailing List <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | [Xen-devel] mini-os: sbrk() doesn't allocate pages? |
| From: | Gerd Hoffmann <kraxel@xxxxxxxxxx> |
| Date: | Thu, 14 Aug 2008 10:04:31 +0200 |
| Delivery-date: | Thu, 14 Aug 2008 01:11:47 -0700 |
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Hi, I'm wondering how the mini-os heap allocater work. The sbrk() function in mm.c seems to *not* allocate pages for the heap. Instead it uses the zero page and maps it into the heap space when a new page is needed ... I can't believe is is supposed to work that way. Is that a bug? Did I miss some logic somewhere in the code? wondering, Gerd -- http://kraxel.fedorapeople.org/xenner/ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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