[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] Domain0 crash on Bad L1 flags 800000
True, I was referring to NX bit disablement causing boot issues 32-bit kernel without PAE support. Has anyone tested 64 bit kernels without NX bit? -----Original Message----- From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Jeremy Fitzhardinge Sent: Tuesday, December 14, 2010 1:57 PM To: Kaushik Barde Cc: 'Qiangmin Lin'; olaf@xxxxxxxxx; xen-devel@xxxxxxxxxxxxxxxxxxx; 'fanliang' Subject: Re: [Xen-devel] Domain0 crash on Bad L1 flags 800000 On 12/14/2010 01:20 PM, Kaushik Barde wrote: > Maybe kernel compiled with PAE (and HIGHMEM64) options, Try recompiling > kernel without and see. 32-bit kernels must be compiled with PAE - non-PAE 32-bit PV kernels are not supported. Neither option is relevant on 64-bit. J > -Kaushik > > -----Original Message----- > From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx > [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Jeremy > Fitzhardinge > Sent: Tuesday, December 14, 2010 12:37 PM > To: Qiangmin Lin > Cc: olaf@xxxxxxxxx; xen-devel@xxxxxxxxxxxxxxxxxxx; fanliang > Subject: Re: [Xen-devel] Domain0 crash on Bad L1 flags 800000 > > On 12/08/2010 06:53 PM, Qiangmin Lin wrote: >> Hi all, My dom0 kernel is 2.6.32.12-xen and Xen 3.4.2. >> I had closed "No Execute" in BIOS, but I see flags 800000 which mean > _PAGE_NX in crash information. > > This looks like the same bug your colleague fanliang reported to me. Was > this after a long period of uptime? What was running at the time? > > I'm curious why you're using that particular kernel, and why you're > running with NX disabled. > > Thanks, > J > >> >> (XEN) mm.c:720:d0 Bad L1 flags 800000 >> (XEN) mm.c:4203:d0 ptwr_emulate: could not get_page_from_l1e() >> (XEN) domain_crash_sync called from entry.S >> (XEN) Domain 0 (vcpu#2) crashed on cpu#2: >> (XEN) ----[ Xen-3.4.2 x86_64 debug=n Not tainted ]---- >> (XEN) CPU: 2 >> (XEN) RIP: e033:[<ffffffffa0375fcc>] >> (XEN) RFLAGS: 0000000000010292 EM: 0 CONTEXT: pv guest >> (XEN) rax: ffffffffa0376120 rbx: ffff880075222000 rcx: > 0000000000000001 >> (XEN) rdx: ffff88000402b000 rsi: 0000000000000000 rdi: > ffff880075222048 >> (XEN) rbp: ffff880075222000 rsp: ffff8800a5db5ff8 r8: > ffffe8ffffeb0588 >> (XEN) r9: 0000000000000001 r10: 0000000000000000 r11: > ffffffffa0376120 >> (XEN) r12: ffff880075222048 r13: ffff8800c8a69000 r14: > ffff880075222058 >> (XEN) r15: 00007f44fd7802d0 cr0: 0000000080050033 cr4: > 00000000000026f0 >> (XEN) cr3: 00000008dbaf8000 cr2: ffff8800a5db5ff0 >> (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: e02b cs: e033 >> (XEN) Guest stack trace from rsp=ffff8800a5db5ff8: >> (XEN) ffff8800c8a69000 ffff880075222000 ffff88002bcc6500 > ffffffffa0376144 >> (XEN) ffff8800c8a69000 ffff8800888f7380 ffff8800c8a690f8 > ffffffffa0377e3c >> (XEN) 0000000000000000 0000000000000000 0000000000000000 > 0000000000000000 >> (XEN) ffff8800c8a69000 ffff880075222000 ffff88002bcc6500 > ffff8800c8a69000 >> (XEN) ffff880075222058 ffffffffa0376161 ffff8800c8a69000 > ffff8800888f7380 >> (XEN) ffff8800c8a690f8 ffffffffa0377e3c 0000000000000000 > 0000000000000000 >> (XEN) 0000000000000000 0000000000000000 ffff8800c8a69000 > ffff880075222000 >> (XEN) ffff88002bcc6500 ffff8800c8a69000 ffff880075222058 > ffffffffa0376161 >> (XEN) ffff8800c8a69000 ffff8800888f7380 ffff8800c8a690f8 > ffffffffa0377e3c >> (XEN) 0000000000000000 0000000000000000 0000000000000000 > 0000000000000000 >> (XEN) ffff8800c8a69000 ffff880075222000 ffff88002bcc6500 > ffff8800c8a69000 >> (XEN) ffff880075222058 ffffffffa0376161 ffff8800c8a69000 > ffff8800888f7380 >> (XEN) ffff8800c8a690f8 ffffffffa0377e3c 0000000000000000 > 0000000000000000 >> (XEN) 0000000000000000 0000000000000000 ffff8800c8a69000 > ffff880075222000 >> (XEN) ffff88002bcc6500 ffff8800c8a69000 ffff880075222058 > ffffffffa0376161 >> (XEN) ffff8800c8a69000 ffff8800888f7380 ffff8800c8a690f8 > ffffffffa0377e3c >> (XEN) 0000000000000000 0000000000000000 0000000000000000 > 0000000000000000 >> (XEN) ffff8800c8a69000 ffff880075222000 ffff88002bcc6500 > ffff8800c8a69000 >> (XEN) ffff880075222058 ffffffffa0376161 ffff8800c8a69000 > ffff8800888f7380 >> (XEN) ffff8800c8a690f8 ffffffffa0377e3c 0000000000000000 > 0000000000000000 >> (XEN) Domain 0 crashed: rebooting machine in 5 seconds. >> [1182692.327659] BUG: unable to handle kernel >> please help me >> L >> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@xxxxxxxxxxxxxxxxxxx >> http://lists.xensource.com/xen-devel > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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