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Date: Thu, 17 Mar 2011 09:51:18 +0100 From: Daniel Kiper <dkiper@...-space.pl> To: Daniel Kiper <dkiper@...-space.pl> Cc: Stefano Stabellini <stefano.stabellini@...citrix.com>, Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>, Ian Campbell <Ian.Campbell@...citrix.com>, "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>, "andi.kleen@...el.com" <andi.kleen@...el.com>, "haicheng.li@...ux.intel.com" <haicheng.li@...ux.intel.com>, "fengguang.wu@...el.com" <fengguang.wu@...el.com>, "jeremy@...p.org" <jeremy@...p.org>, Dan Magenheimer <dan.magenheimer@...cle.com>, "v.tolstov@...fip.ru" <v.tolstov@...fip.ru>, "pasik@....fi" <pasik@....fi>, "dave@...ux.vnet.ibm.com" <dave@...ux.vnet.ibm.com>, "wdauchy@...il.com" <wdauchy@...il.com>, "rientjes@...gle.com" <rientjes@...gle.com>, "xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-mm@...ck.org" <linux-mm@...ck.org> Subject: Re: Bootup fix for _brk_end being != _end On Tue, Mar 15, 2011 at 04:40:24PM +0100, Daniel Kiper wrote: > On Tue, Mar 15, 2011 at 03:31:47PM +0000, Stefano Stabellini wrote: > > On Tue, 15 Mar 2011, Daniel Kiper wrote: > > > On Tue, Mar 15, 2011 at 10:48:21AM -0400, Konrad Rzeszutek Wilk wrote: > > > > > > > Additionally, I suggest to apply patch prepared by Steffano Stabellini > > > > > > > (https://lkml.org/lkml/2011/1/31/232) which fixes memory management > > > > > > > issue in Xen guest. I was not able boot guest machine without > > > > > > > above mentioned patch. > > > > > > > > > > > > after some discussions we came up with a different approach to fix the > > > > > > issue; I sent a couple of patches a little while ago: > > > > > > > > > > > > https://lkml.org/lkml/2011/2/28/410 > > > > > > > > > > I tested git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 2.6.38-tip-fixes > > > > > and it works on x86_64, however, it does not work on i386. Tested as > > > > > unprivileged guest on Xen Ver. 4.1.0-rc2-pre. On i386 domain crashes > > > > > silently at early boot stage :-(((. > > > > > > > > Details? Can you provide the 'xenctx' output of where it crashed? > > > > > > As I wrote above domain is dying and I am not able to connect to it using > > > xenctx after crash :-(((. I do not know how to do that in another way. > > > > try adding: > > > > extra = "loglevel=9 debug earlyprintk=xenboot" > > (XEN) d55:v0: unhandled page fault (ec=0002) > (XEN) Pagetable walk from 000000000000000c: > (XEN) L4[0x000] = 000000010bebc027 0000000000024d28 > (XEN) L3[0x000] = 0000000000000000 ffffffffffffffff > (XEN) domain_crash_sync called from entry.S > (XEN) Domain 55 (vcpu#0) crashed on cpu#3: > (XEN) ----[ Xen-4.1.0-rc2-pre x86_64 debug=y Not tainted ]---- > (XEN) CPU: 3 > (XEN) RIP: e019:[<00000000c1001180>] > (XEN) RFLAGS: 0000000000000282 EM: 1 CONTEXT: pv guest > (XEN) rax: 000000000000000c rbx: 000000000000000c rcx: 00000000c1371fd0 > (XEN) rdx: 00000000c1371fd0 rsi: 00000000c1742000 rdi: 00000000a5c03d70 > (XEN) rbp: 00000000c1371fc8 rsp: 00000000c1371fa8 r8: 0000000000000000 > (XEN) r9: 0000000000000000 r10: 0000000000000000 r11: 0000000000000000 > (XEN) r12: 0000000000000000 r13: 0000000000000000 r14: 0000000000000000 > (XEN) r15: 0000000000000000 cr0: 000000008005003b cr4: 00000000000026f4 > (XEN) cr3: 0000000129b6e000 cr2: 000000000000000c > (XEN) ds: e021 es: e021 fs: e021 gs: e021 ss: e021 cs: e019 > (XEN) Guest stack trace from esp=c1371fa8: > (XEN) 00000002 c1001180 0001e019 00010082 c10037af deadbeef c1742000 a5c03d70 > (XEN) c1371fdc c13a4aa8 00000000 00000000 00000000 c1371ffc c13a3ff2 00000000 > (XEN) 00000000 00000000 00000000 00000000 deadbeef c1753000 013fe001 00000000 > (XEN) 00000000 00000000 00000000 00000000 013fe001 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > (XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Any progress ??? Can I help you in something ??? Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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