This is a non-debug built of Xen 4.3-unstable and after having
one HVM guest launched I pressed ''o'' for fun on the serial
console
and go this:
This is a SandyBridge ES-1220 CPU (Lenovo ThinkServer (TS130 11051CU))
(XEN) domain1 IOMMU p2m table:
(XEN) p2m table has 4 levels
(XEN) Assertion ''pfn_to_pdx(ma >> PAGE_SHIFT) <
(DIRECTMAP_SIZE >> PAGE_SHIFT)'' failed at
/home/konrad/ssd/konrad/xtt-x86_64/bootstrap/xen/x:101
(XEN) ----[ Xen-4.3-unstable x86_64 debug=y Not tainted ]----
(XEN) CPU: 0
(XEN) RIP: e008:[<ffff82c48014c2e8>] map_vtd_domain_page+0x38/0x6d
(XEN) RFLAGS: 0000000000010216 CONTEXT: hypervisor
(XEN) rax: 0000000000000000 rbx: f000eef3f000e000 rcx: 0000000000000000
(XEN) rdx: 000f000eef3f000e rsi: 000f000eef3f000e rdi: f000eef3f000e000
(XEN) rbp: ffff82c4802bfd60 rsp: ffff82c4802bfd60 r8: f000eef3f000e2c3
(XEN) r9: 00000000a589c275 r10: 00000000fffffffd r11: ffff82c480224e40
(XEN) r12: 00000000000001ff r13: ffff830000000000 r14: 0000000000000003
(XEN) r15: 0000008000000000 cr0: 000000008005003b cr4: 00000000000426f0
(XEN) cr3: 00000000c6a70000 cr2: ffffffffff600400
(XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: 0000 cs: e008
(XEN) Xen stack trace from rsp=ffff82c4802bfd60:
(XEN) ffff82c4802bfdb0 ffff82c4801453b2 00000001802bfe00 0000000000000000
(XEN) 0000000000000200 0000000000000001 00000000000001ff ffff830000000000
(XEN) 0000000000000003 0000000000000000 ffff82c4802bfe00 ffff82c48014542f
(XEN) 0000000080303a20 0000002700000001 0000000000000004 ffff83022d9fa000
(XEN) ffff82c480263180 ffff82c48023f16e ffff82c480248ea0 ffff82c480303a48
(XEN) ffff82c4802bfe20 ffff82c4801454c8 ffff82c48023f16e ffff83022d9fa000
(XEN) ffff82c4802bfe50 ffff82c4801421da ffff82c480277d40 000000000000006f
(XEN) 0000000000000000 ffff82c480303a60 ffff82c4802bfe80 ffff82c48011042c
(XEN) ffff82c4802bfe80 ffff82c480277620 ffff82c480277620 0000000000000000
(XEN) ffff82c4802bfe90 ffff82c48011046d ffff82c4802bfeb0 ffff82c4801272af
(XEN) ffff82c480303ad0 ffff82c480303af0 ffff82c4802bfee0 ffff82c4801273d9
(XEN) ffff82c480260f80 ffff82c4802b8000 ffff82c480260f80 ffff82c4802b8000
(XEN) ffff82c4802bff10 ffff82c48015b5d5 0000000000026c00 ffff8300c6d4a000
(XEN) ffff8300c6d4a000 ffffffffffffffff ffff82c4802bfdf0 0000000000026c00
(XEN) 0000000000000000 ffffffff81a00000 0000000000000000 ffffffff81a01ea8
(XEN) ffffffff81a00010 ffffffff81a01e08 0000001931fed8c8 ffff880079a0e800
(XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN) 0140000000000000 0000000000000082 0000beef0000beef ffffffff8107b3a6
(XEN) 0000beef0000beef 0000000000000246 ffffffff81a01ea8 000000000000beef
(XEN) 000000000000beef 000000000000beef 000000000000beef 000000000000beef
(XEN) Xen call trace:
(XEN) [<ffff82c48014c2e8>] map_vtd_domain_page+0x38/0x6d
(XEN) [<ffff82c4801453b2>] vtd_dump_p2m_table_level+0x2a/0xef
(XEN) [<ffff82c48014542f>] vtd_dump_p2m_table_level+0xa7/0xef
(XEN) [<ffff82c4801454c8>] vtd_dump_p2m_table+0x51/0x58
(XEN) [<ffff82c4801421da>] iommu_dump_p2m_table+0xb8/0xca
(XEN) [<ffff82c48011042c>] handle_keypress+0x70/0x9c
(XEN) [<ffff82c48011046d>] keypress_action+0x15/0x17
(XEN) [<ffff82c4801272af>] do_tasklet_work+0x8e/0xc6
(XEN) [<ffff82c4801273d9>] do_tasklet+0x66/0x96
(XEN) [<ffff82c48015b5d5>] idle_loop+0x6e/0x75
(XEN)
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 0:
(XEN) Assertion ''pfn_to_pdx(ma >> PAGE_SHIFT) <
(DIRECTMAP_SIZE >> PAGE_SHIFT)'' failed at
/home/konrad/ssd/konrad/xtt-x86_64/bootstra****************************************
(XEN)
(XEN) Manual reset required (''noreboot'' specified)
Any ideas?
>>> On 11.01.13 at 21:30, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote: > This is a non-debug built of Xen 4.3-unstable and after having > one HVM guest launched I pressed ''o'' for fun on the serial console > and go this: > > This is a SandyBridge ES-1220 CPU (Lenovo ThinkServer (TS130 11051CU)) > > (XEN) domain1 IOMMU p2m table: > (XEN) p2m table has 4 levels > (XEN) Assertion ''pfn_to_pdx(ma >> PAGE_SHIFT) < (DIRECTMAP_SIZE >> PAGE_SHIFT)'' > failed at /home/konrad/ssd/konrad/xtt-x86_64/bootstrap/xen/x:101 > (XEN) ----[ Xen-4.3-unstable x86_64 debug=y Not tainted ]---- > (XEN) CPU: 0 > (XEN) RIP: e008:[<ffff82c48014c2e8>] map_vtd_domain_page+0x38/0x6d > (XEN) RFLAGS: 0000000000010216 CONTEXT: hypervisor > (XEN) rax: 0000000000000000 rbx: f000eef3f000e000 rcx: 0000000000000000 > (XEN) rdx: 000f000eef3f000e rsi: 000f000eef3f000e rdi: f000eef3f000e000 > (XEN) rbp: ffff82c4802bfd60 rsp: ffff82c4802bfd60 r8: f000eef3f000e2c3 > (XEN) r9: 00000000a589c275 r10: 00000000fffffffd r11: ffff82c480224e40 > (XEN) r12: 00000000000001ff r13: ffff830000000000 r14: 0000000000000003 > (XEN) r15: 0000008000000000 cr0: 000000008005003b cr4: 00000000000426f0 > (XEN) cr3: 00000000c6a70000 cr2: ffffffffff600400 > (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: 0000 cs: e008 > (XEN) Xen stack trace from rsp=ffff82c4802bfd60: > (XEN) ffff82c4802bfdb0 ffff82c4801453b2 00000001802bfe00 0000000000000000 > (XEN) 0000000000000200 0000000000000001 00000000000001ff ffff830000000000 > (XEN) 0000000000000003 0000000000000000 ffff82c4802bfe00 ffff82c48014542f > (XEN) 0000000080303a20 0000002700000001 0000000000000004 ffff83022d9fa000 > (XEN) ffff82c480263180 ffff82c48023f16e ffff82c480248ea0 ffff82c480303a48 > (XEN) ffff82c4802bfe20 ffff82c4801454c8 ffff82c48023f16e ffff83022d9fa000 > (XEN) ffff82c4802bfe50 ffff82c4801421da ffff82c480277d40 000000000000006f > (XEN) 0000000000000000 ffff82c480303a60 ffff82c4802bfe80 ffff82c48011042c > (XEN) ffff82c4802bfe80 ffff82c480277620 ffff82c480277620 0000000000000000 > (XEN) ffff82c4802bfe90 ffff82c48011046d ffff82c4802bfeb0 ffff82c4801272af > (XEN) ffff82c480303ad0 ffff82c480303af0 ffff82c4802bfee0 ffff82c4801273d9 > (XEN) ffff82c480260f80 ffff82c4802b8000 ffff82c480260f80 ffff82c4802b8000 > (XEN) ffff82c4802bff10 ffff82c48015b5d5 0000000000026c00 ffff8300c6d4a000 > (XEN) ffff8300c6d4a000 ffffffffffffffff ffff82c4802bfdf0 0000000000026c00 > (XEN) 0000000000000000 ffffffff81a00000 0000000000000000 ffffffff81a01ea8 > (XEN) ffffffff81a00010 ffffffff81a01e08 0000001931fed8c8 ffff880079a0e800 > (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > (XEN) 0140000000000000 0000000000000082 0000beef0000beef ffffffff8107b3a6 > (XEN) 0000beef0000beef 0000000000000246 ffffffff81a01ea8 000000000000beef > (XEN) 000000000000beef 000000000000beef 000000000000beef 000000000000beef > (XEN) Xen call trace: > (XEN) [<ffff82c48014c2e8>] map_vtd_domain_page+0x38/0x6d > (XEN) [<ffff82c4801453b2>] vtd_dump_p2m_table_level+0x2a/0xef > (XEN) [<ffff82c48014542f>] vtd_dump_p2m_table_level+0xa7/0xef > (XEN) [<ffff82c4801454c8>] vtd_dump_p2m_table+0x51/0x58 > (XEN) [<ffff82c4801421da>] iommu_dump_p2m_table+0xb8/0xca > (XEN) [<ffff82c48011042c>] handle_keypress+0x70/0x9c > (XEN) [<ffff82c48011046d>] keypress_action+0x15/0x17 > (XEN) [<ffff82c4801272af>] do_tasklet_work+0x8e/0xc6 > (XEN) [<ffff82c4801273d9>] do_tasklet+0x66/0x96 > (XEN) [<ffff82c48015b5d5>] idle_loop+0x6e/0x75 > (XEN) > (XEN) > (XEN) **************************************** > (XEN) Panic on CPU 0: > (XEN) Assertion ''pfn_to_pdx(ma >> PAGE_SHIFT) < (DIRECTMAP_SIZE >> PAGE_SHIFT)'' > failed at > /home/konrad/ssd/konrad/xtt-x86_64/bootstra********************************* > ******* > (XEN) > (XEN) Manual reset required (''noreboot'' specified) > > Any ideas?Was that with the guest still running or already terminated? In any case - the register values suggest that the page at MFN 0 got looked at and used for traversing the page table hierarchy, and the question therefore mainly at what level this MFN 0 got read and used. Jan
On Mon, Jan 14, 2013 at 10:38:27AM +0000, Jan Beulich wrote:> >>> On 11.01.13 at 21:30, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote: > > This is a non-debug built of Xen 4.3-unstable and after having > > one HVM guest launched I pressed ''o'' for fun on the serial console > > and go this: > > > > This is a SandyBridge ES-1220 CPU (Lenovo ThinkServer (TS130 11051CU)) > > > > (XEN) domain1 IOMMU p2m table: > > (XEN) p2m table has 4 levels > > (XEN) Assertion ''pfn_to_pdx(ma >> PAGE_SHIFT) < (DIRECTMAP_SIZE >> PAGE_SHIFT)'' > > failed at /home/konrad/ssd/konrad/xtt-x86_64/bootstrap/xen/x:101 > > (XEN) ----[ Xen-4.3-unstable x86_64 debug=y Not tainted ]---- > > (XEN) CPU: 0 > > (XEN) RIP: e008:[<ffff82c48014c2e8>] map_vtd_domain_page+0x38/0x6d > > (XEN) RFLAGS: 0000000000010216 CONTEXT: hypervisor > > (XEN) rax: 0000000000000000 rbx: f000eef3f000e000 rcx: 0000000000000000 > > (XEN) rdx: 000f000eef3f000e rsi: 000f000eef3f000e rdi: f000eef3f000e000 > > (XEN) rbp: ffff82c4802bfd60 rsp: ffff82c4802bfd60 r8: f000eef3f000e2c3 > > (XEN) r9: 00000000a589c275 r10: 00000000fffffffd r11: ffff82c480224e40 > > (XEN) r12: 00000000000001ff r13: ffff830000000000 r14: 0000000000000003 > > (XEN) r15: 0000008000000000 cr0: 000000008005003b cr4: 00000000000426f0 > > (XEN) cr3: 00000000c6a70000 cr2: ffffffffff600400 > > (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: 0000 cs: e008 > > (XEN) Xen stack trace from rsp=ffff82c4802bfd60: > > (XEN) ffff82c4802bfdb0 ffff82c4801453b2 00000001802bfe00 0000000000000000 > > (XEN) 0000000000000200 0000000000000001 00000000000001ff ffff830000000000 > > (XEN) 0000000000000003 0000000000000000 ffff82c4802bfe00 ffff82c48014542f > > (XEN) 0000000080303a20 0000002700000001 0000000000000004 ffff83022d9fa000 > > (XEN) ffff82c480263180 ffff82c48023f16e ffff82c480248ea0 ffff82c480303a48 > > (XEN) ffff82c4802bfe20 ffff82c4801454c8 ffff82c48023f16e ffff83022d9fa000 > > (XEN) ffff82c4802bfe50 ffff82c4801421da ffff82c480277d40 000000000000006f > > (XEN) 0000000000000000 ffff82c480303a60 ffff82c4802bfe80 ffff82c48011042c > > (XEN) ffff82c4802bfe80 ffff82c480277620 ffff82c480277620 0000000000000000 > > (XEN) ffff82c4802bfe90 ffff82c48011046d ffff82c4802bfeb0 ffff82c4801272af > > (XEN) ffff82c480303ad0 ffff82c480303af0 ffff82c4802bfee0 ffff82c4801273d9 > > (XEN) ffff82c480260f80 ffff82c4802b8000 ffff82c480260f80 ffff82c4802b8000 > > (XEN) ffff82c4802bff10 ffff82c48015b5d5 0000000000026c00 ffff8300c6d4a000 > > (XEN) ffff8300c6d4a000 ffffffffffffffff ffff82c4802bfdf0 0000000000026c00 > > (XEN) 0000000000000000 ffffffff81a00000 0000000000000000 ffffffff81a01ea8 > > (XEN) ffffffff81a00010 ffffffff81a01e08 0000001931fed8c8 ffff880079a0e800 > > (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > > (XEN) 0140000000000000 0000000000000082 0000beef0000beef ffffffff8107b3a6 > > (XEN) 0000beef0000beef 0000000000000246 ffffffff81a01ea8 000000000000beef > > (XEN) 000000000000beef 000000000000beef 000000000000beef 000000000000beef > > (XEN) Xen call trace: > > (XEN) [<ffff82c48014c2e8>] map_vtd_domain_page+0x38/0x6d > > (XEN) [<ffff82c4801453b2>] vtd_dump_p2m_table_level+0x2a/0xef > > (XEN) [<ffff82c48014542f>] vtd_dump_p2m_table_level+0xa7/0xef > > (XEN) [<ffff82c4801454c8>] vtd_dump_p2m_table+0x51/0x58 > > (XEN) [<ffff82c4801421da>] iommu_dump_p2m_table+0xb8/0xca > > (XEN) [<ffff82c48011042c>] handle_keypress+0x70/0x9c > > (XEN) [<ffff82c48011046d>] keypress_action+0x15/0x17 > > (XEN) [<ffff82c4801272af>] do_tasklet_work+0x8e/0xc6 > > (XEN) [<ffff82c4801273d9>] do_tasklet+0x66/0x96 > > (XEN) [<ffff82c48015b5d5>] idle_loop+0x6e/0x75 > > (XEN) > > (XEN) > > (XEN) **************************************** > > (XEN) Panic on CPU 0: > > (XEN) Assertion ''pfn_to_pdx(ma >> PAGE_SHIFT) < (DIRECTMAP_SIZE >> PAGE_SHIFT)'' > > failed at > > /home/konrad/ssd/konrad/xtt-x86_64/bootstra********************************* > > ******* > > (XEN) > > (XEN) Manual reset required (''noreboot'' specified) > > > > Any ideas? > > Was that with the guest still running or already terminated?I just started one guest.> > In any case - the register values suggest that the page at MFN 0 > got looked at and used for traversing the page table hierarchy, > and the question therefore mainly at what level this MFN 0 got > read and used. > > Jan > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel >