* Can't create small PV guest anymore (64MB) @ 2016-02-08 11:18 Anthony PERARD 2016-02-08 11:50 ` Juergen Gross 0 siblings, 1 reply; 4+ messages in thread From: Anthony PERARD @ 2016-02-08 11:18 UTC (permalink / raw) To: Xen Devel, Ian Campbell, Juergen Gross, Ian Jackson, Wei Liu Hi, I used to be able to boot a guest with 64MB, but now the minimum required to boot it seams to be 85MB. It's a PV guest used and lauched by OpenStack with there test suite. You can find the image at [1]. The guest failed to boot with this error message: xc: error: panic: xc_dom_x86.c:147: count_pgtables: not enough memory for initial mapping (0x5498 > 0x4000): Out of memory libxl: error: libxl_dom.c:655:libxl__build_dom: xc_dom_build_image failed: No such file or directory ... It still works on commit 6853c9b but guest creation fail on commit d07f63f. In between, there is a patch series from Juergen that change libxc. I have not check which patch in particular broke guest creation. How can we boot this guest [1] with only 64MB of memory like it was working before? [1] http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-uec.tar.gz -- Anthony PERARD ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Can't create small PV guest anymore (64MB) 2016-02-08 11:18 Can't create small PV guest anymore (64MB) Anthony PERARD @ 2016-02-08 11:50 ` Juergen Gross 2016-02-08 12:06 ` Anthony PERARD 0 siblings, 1 reply; 4+ messages in thread From: Juergen Gross @ 2016-02-08 11:50 UTC (permalink / raw) To: Anthony PERARD, Xen Devel, Ian Campbell, Ian Jackson, Wei Liu On 08/02/16 12:18, Anthony PERARD wrote: > Hi, > > I used to be able to boot a guest with 64MB, but now the minimum required > to boot it seams to be 85MB. It's a PV guest used and lauched by OpenStack > with there test suite. You can find the image at [1]. > > The guest failed to boot with this error message: > xc: error: panic: xc_dom_x86.c:147: count_pgtables: not enough memory for initial mapping (0x5498 > 0x4000): Out of memory > libxl: error: libxl_dom.c:655:libxl__build_dom: xc_dom_build_image failed: No such file or directory > ... > > It still works on commit 6853c9b but guest creation fail on commit d07f63f. > In between, there is a patch series from Juergen that change libxc. I have > not check which patch in particular broke guest creation. > > How can we boot this guest [1] with only 64MB of memory like it was working > before? > > [1] http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-uec.tar.gz > Could you please provide: - guest configuration file - output of "xl -v create ..." Juergen ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Can't create small PV guest anymore (64MB) 2016-02-08 11:50 ` Juergen Gross @ 2016-02-08 12:06 ` Anthony PERARD 2016-02-08 12:30 ` Juergen Gross 0 siblings, 1 reply; 4+ messages in thread From: Anthony PERARD @ 2016-02-08 12:06 UTC (permalink / raw) To: Juergen Gross; +Cc: Wei Liu, Ian Jackson, Ian Campbell, Xen Devel On Mon, Feb 08, 2016 at 12:50:43PM +0100, Juergen Gross wrote: > On 08/02/16 12:18, Anthony PERARD wrote: > > Hi, > > > > I used to be able to boot a guest with 64MB, but now the minimum required > > to boot it seams to be 85MB. It's a PV guest used and lauched by OpenStack > > with there test suite. You can find the image at [1]. > > > > The guest failed to boot with this error message: > > xc: error: panic: xc_dom_x86.c:147: count_pgtables: not enough memory for initial mapping (0x5498 > 0x4000): Out of memory > > libxl: error: libxl_dom.c:655:libxl__build_dom: xc_dom_build_image failed: No such file or directory > > ... > > > > It still works on commit 6853c9b but guest creation fail on commit d07f63f. > > In between, there is a patch series from Juergen that change libxc. I have > > not check which patch in particular broke guest creation. > > > > How can we boot this guest [1] with only 64MB of memory like it was working > > before? > > > > [1] http://secure-web.cisco.com/1QfsPLU73sZyj0wnwzSUS_nukH5Va9nrqA69w5a91gaO1PuR5mH4iBs2XnllKEMHianH5_0mAQmiHVmZhJuzfe8oAW9DRoMcxqO_0-osGVLT1cI9AZ6Jt96e53bNOE-ydUKDhe1jAMxURwo3v9-hOQFfNaa1AeuAc09hYkWZarr1xUn1TC0IG69SHQXjKfjvA/http%3A%2F%2Fdownload.cirros-cloud.net%2F0.3.4%2Fcirros-0.3.4-x86_64-uec.tar.gz > > > > Could you please provide: > > - guest configuration file $ qemu-img create -f qcow2 disk.qcow2 1G $ cat cirros.pv name = "guest" maxmem = 64 memory = 64 vcpus = 1 on_poweroff = "destroy" on_reboot = "restart" on_crash = "destroy" vif = [ "script=vif-bridge" ] kernel = "cirros-0.3.4-x86_64-vmlinuz" ramdisk = "cirros-0.3.4-x86_64-initrd" cmdline = "ro root=/dev/xvda" disk = [ "disk.qcow2,qcow2,xvda,w,backendtype=qdisk" ] > - output of "xl -v create ..." Parsing config from cleanner.pv domainbuilder: detail: xc_dom_allocate: cmdline="ro root=/dev/xvda", features="(null)" domainbuilder: detail: xc_dom_kernel_file: filename="cirros-0.3.4-x86_64-vmlinuz" domainbuilder: detail: xc_dom_malloc_filemap : 4862 kB domainbuilder: detail: xc_dom_ramdisk_file: filename="cirros-0.3.4-x86_64-initrd" domainbuilder: detail: xc_dom_malloc_filemap : 3652 kB domainbuilder: detail: xc_dom_boot_xen_init: ver 4.7, caps xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 domainbuilder: detail: xc_dom_parse_image: called domainbuilder: detail: xc_dom_find_loader: trying multiboot-binary loader ... domainbuilder: detail: loader probe failed domainbuilder: detail: xc_dom_find_loader: trying HVM-generic loader ... domainbuilder: detail: loader probe failed domainbuilder: detail: xc_dom_find_loader: trying Linux bzImage loader ... domainbuilder: detail: xc_dom_malloc : 18258 kB domainbuilder: detail: xc_dom_do_gunzip: unzip ok, 0x4b6ad2 -> 0x11d4aa0 domainbuilder: detail: loader probe OK xc: detail: elf_parse_binary: phdr: paddr=0x1000000 memsz=0xad8000 xc: detail: elf_parse_binary: phdr: paddr=0x1c00000 memsz=0xe40e0 xc: detail: elf_parse_binary: phdr: paddr=0x1ce5000 memsz=0x13400 xc: detail: elf_parse_binary: phdr: paddr=0x1cf9000 memsz=0x362000 xc: detail: elf_parse_binary: memory: 0x1000000 -> 0x205b000 xc: detail: elf_xen_parse_note: GUEST_OS = "linux" xc: detail: elf_xen_parse_note: GUEST_VERSION = "2.6" xc: detail: elf_xen_parse_note: XEN_VERSION = "xen-3.0" xc: detail: elf_xen_parse_note: VIRT_BASE = 0xffffffff80000000 xc: detail: elf_xen_parse_note: ENTRY = 0xffffffff81cf9200 xc: detail: elf_xen_parse_note: HYPERCALL_PAGE = 0xffffffff81001000 xc: detail: elf_xen_parse_note: FEATURES = "!writable_page_tables|pae_pgdir_above_4gb" xc: detail: elf_xen_parse_note: PAE_MODE = "yes" xc: detail: elf_xen_parse_note: LOADER = "generic" xc: detail: elf_xen_parse_note: unknown xen elf note (0xd) xc: detail: elf_xen_parse_note: SUSPEND_CANCEL = 0x1 xc: detail: elf_xen_parse_note: HV_START_LOW = 0xffff800000000000 xc: detail: elf_xen_parse_note: PADDR_OFFSET = 0x0 xc: detail: elf_xen_addr_calc_check: addresses: xc: detail: virt_base = 0xffffffff80000000 xc: detail: elf_paddr_offset = 0x0 xc: detail: virt_offset = 0xffffffff80000000 xc: detail: virt_kstart = 0xffffffff81000000 xc: detail: virt_kend = 0xffffffff8205b000 xc: detail: virt_entry = 0xffffffff81cf9200 xc: detail: p2m_base = 0xffffffffffffffff domainbuilder: detail: xc_dom_parse_elf_kernel: xen-3.0-x86_64: 0xffffffff81000000 -> 0xffffffff8205b000 domainbuilder: detail: xc_dom_mem_init: mem 64 MB, pages 0x4000 pages, 4k each domainbuilder: detail: xc_dom_mem_init: 0x4000 pages domainbuilder: detail: xc_dom_boot_mem_init: called domainbuilder: detail: x86_compat: guest xen-3.0-x86_64, address size 64 domainbuilder: detail: xc_dom_malloc : 128 kB domainbuilder: detail: xc_dom_build_image: called domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn 0x1000+0x105b at 0x7fb311af1000 domainbuilder: detail: xc_dom_alloc_segment: kernel : 0xffffffff81000000 -> 0xffffffff8205b000 (pfn 0x1000 + 0x105b pages) xc: detail: elf_load_binary: phdr 0 at 0x7fb311af1000 -> 0x7fb3125c9000 xc: detail: elf_load_binary: phdr 1 at 0x7fb3126f1000 -> 0x7fb3127d50e0 xc: detail: elf_load_binary: phdr 2 at 0x7fb3127d6000 -> 0x7fb3127e9400 xc: detail: elf_load_binary: phdr 3 at 0x7fb3127ea000 -> 0x7fb3128c5000 domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn 0x205b+0x81b at 0x7fb3112d1000 domainbuilder: detail: xc_dom_alloc_segment: ramdisk : 0xffffffff8205b000 -> 0xffffffff82876000 (pfn 0x205b + 0x81b pages) domainbuilder: detail: xc_dom_do_gunzip: unzip ok, 0x391203 -> 0x81a810 domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn 0x2876+0x20 at 0x7fb3182d9000 domainbuilder: detail: xc_dom_alloc_segment: phys2mach : 0xffffffff82876000 -> 0xffffffff82896000 (pfn 0x2876 + 0x20 pages) domainbuilder: detail: xc_dom_alloc_page : start info : 0xffffffff82896000 (pfn 0x2896) domainbuilder: detail: xc_dom_alloc_page : xenstore : 0xffffffff82897000 (pfn 0x2897) domainbuilder: detail: xc_dom_alloc_page : console : 0xffffffff82898000 (pfn 0x2898) xc: error: panic: xc_dom_x86.c:147: count_pgtables: not enough memory for initial mapping (0x5498 > 0x4000): Out of memory libxl: error: libxl_dom.c:655:libxl__build_dom: xc_dom_build_image failed: No such file or directory domainbuilder: detail: xc_dom_release: called libxl: error: libxl_create.c:1171:domcreate_rebuild_done: cannot (re-)build domain: -3 libxl: error: libxl.c:1610:libxl__destroy_domid: non-existant domain 14 libxl: error: libxl.c:1568:domain_destroy_callback: unable to destroy guest with domid 14 libxl: error: libxl.c:1497:domain_destroy_cb: destruction of domain 14 failed Thanks, -- Anthony PERARD ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Can't create small PV guest anymore (64MB) 2016-02-08 12:06 ` Anthony PERARD @ 2016-02-08 12:30 ` Juergen Gross 0 siblings, 0 replies; 4+ messages in thread From: Juergen Gross @ 2016-02-08 12:30 UTC (permalink / raw) To: Anthony PERARD; +Cc: Wei Liu, Ian Jackson, Ian Campbell, Xen Devel On 08/02/16 13:06, Anthony PERARD wrote: > On Mon, Feb 08, 2016 at 12:50:43PM +0100, Juergen Gross wrote: >> On 08/02/16 12:18, Anthony PERARD wrote: >>> Hi, >>> >>> I used to be able to boot a guest with 64MB, but now the minimum required >>> to boot it seams to be 85MB. It's a PV guest used and lauched by OpenStack >>> with there test suite. You can find the image at [1]. >>> >>> The guest failed to boot with this error message: >>> xc: error: panic: xc_dom_x86.c:147: count_pgtables: not enough memory for initial mapping (0x5498 > 0x4000): Out of memory >>> libxl: error: libxl_dom.c:655:libxl__build_dom: xc_dom_build_image failed: No such file or directory >>> ... >>> >>> It still works on commit 6853c9b but guest creation fail on commit d07f63f. >>> In between, there is a patch series from Juergen that change libxc. I have >>> not check which patch in particular broke guest creation. >>> >>> How can we boot this guest [1] with only 64MB of memory like it was working >>> before? >>> >>> [1] http://secure-web.cisco.com/1QfsPLU73sZyj0wnwzSUS_nukH5Va9nrqA69w5a91gaO1PuR5mH4iBs2XnllKEMHianH5_0mAQmiHVmZhJuzfe8oAW9DRoMcxqO_0-osGVLT1cI9AZ6Jt96e53bNOE-ydUKDhe1jAMxURwo3v9-hOQFfNaa1AeuAc09hYkWZarr1xUn1TC0IG69SHQXjKfjvA/http%3A%2F%2Fdownload.cirros-cloud.net%2F0.3.4%2Fcirros-0.3.4-x86_64-uec.tar.gz >>> >> >> Could you please provide: >> >> - guest configuration file > > $ qemu-img create -f qcow2 disk.qcow2 1G > $ cat cirros.pv > name = "guest" > maxmem = 64 > memory = 64 > vcpus = 1 > on_poweroff = "destroy" > on_reboot = "restart" > on_crash = "destroy" > vif = [ "script=vif-bridge" ] > kernel = "cirros-0.3.4-x86_64-vmlinuz" > ramdisk = "cirros-0.3.4-x86_64-initrd" > cmdline = "ro root=/dev/xvda" > disk = [ "disk.qcow2,qcow2,xvda,w,backendtype=qdisk" ] > >> - output of "xl -v create ..." > Parsing config from cleanner.pv > domainbuilder: detail: xc_dom_allocate: cmdline="ro root=/dev/xvda", features="(null)" > domainbuilder: detail: xc_dom_kernel_file: filename="cirros-0.3.4-x86_64-vmlinuz" > domainbuilder: detail: xc_dom_malloc_filemap : 4862 kB > domainbuilder: detail: xc_dom_ramdisk_file: filename="cirros-0.3.4-x86_64-initrd" > domainbuilder: detail: xc_dom_malloc_filemap : 3652 kB > domainbuilder: detail: xc_dom_boot_xen_init: ver 4.7, caps xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 > domainbuilder: detail: xc_dom_parse_image: called > domainbuilder: detail: xc_dom_find_loader: trying multiboot-binary loader ... > domainbuilder: detail: loader probe failed > domainbuilder: detail: xc_dom_find_loader: trying HVM-generic loader ... > domainbuilder: detail: loader probe failed > domainbuilder: detail: xc_dom_find_loader: trying Linux bzImage loader ... > domainbuilder: detail: xc_dom_malloc : 18258 kB > domainbuilder: detail: xc_dom_do_gunzip: unzip ok, 0x4b6ad2 -> 0x11d4aa0 > domainbuilder: detail: loader probe OK > xc: detail: elf_parse_binary: phdr: paddr=0x1000000 memsz=0xad8000 > xc: detail: elf_parse_binary: phdr: paddr=0x1c00000 memsz=0xe40e0 > xc: detail: elf_parse_binary: phdr: paddr=0x1ce5000 memsz=0x13400 > xc: detail: elf_parse_binary: phdr: paddr=0x1cf9000 memsz=0x362000 > xc: detail: elf_parse_binary: memory: 0x1000000 -> 0x205b000 > xc: detail: elf_xen_parse_note: GUEST_OS = "linux" > xc: detail: elf_xen_parse_note: GUEST_VERSION = "2.6" > xc: detail: elf_xen_parse_note: XEN_VERSION = "xen-3.0" > xc: detail: elf_xen_parse_note: VIRT_BASE = 0xffffffff80000000 > xc: detail: elf_xen_parse_note: ENTRY = 0xffffffff81cf9200 > xc: detail: elf_xen_parse_note: HYPERCALL_PAGE = 0xffffffff81001000 > xc: detail: elf_xen_parse_note: FEATURES = "!writable_page_tables|pae_pgdir_above_4gb" > xc: detail: elf_xen_parse_note: PAE_MODE = "yes" > xc: detail: elf_xen_parse_note: LOADER = "generic" > xc: detail: elf_xen_parse_note: unknown xen elf note (0xd) > xc: detail: elf_xen_parse_note: SUSPEND_CANCEL = 0x1 > xc: detail: elf_xen_parse_note: HV_START_LOW = 0xffff800000000000 > xc: detail: elf_xen_parse_note: PADDR_OFFSET = 0x0 > xc: detail: elf_xen_addr_calc_check: addresses: > xc: detail: virt_base = 0xffffffff80000000 > xc: detail: elf_paddr_offset = 0x0 > xc: detail: virt_offset = 0xffffffff80000000 > xc: detail: virt_kstart = 0xffffffff81000000 > xc: detail: virt_kend = 0xffffffff8205b000 > xc: detail: virt_entry = 0xffffffff81cf9200 > xc: detail: p2m_base = 0xffffffffffffffff > domainbuilder: detail: xc_dom_parse_elf_kernel: xen-3.0-x86_64: 0xffffffff81000000 -> 0xffffffff8205b000 > domainbuilder: detail: xc_dom_mem_init: mem 64 MB, pages 0x4000 pages, 4k each > domainbuilder: detail: xc_dom_mem_init: 0x4000 pages > domainbuilder: detail: xc_dom_boot_mem_init: called > domainbuilder: detail: x86_compat: guest xen-3.0-x86_64, address size 64 > domainbuilder: detail: xc_dom_malloc : 128 kB > domainbuilder: detail: xc_dom_build_image: called > domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn 0x1000+0x105b at 0x7fb311af1000 > domainbuilder: detail: xc_dom_alloc_segment: kernel : 0xffffffff81000000 -> 0xffffffff8205b000 (pfn 0x1000 + 0x105b pages) > xc: detail: elf_load_binary: phdr 0 at 0x7fb311af1000 -> 0x7fb3125c9000 > xc: detail: elf_load_binary: phdr 1 at 0x7fb3126f1000 -> 0x7fb3127d50e0 > xc: detail: elf_load_binary: phdr 2 at 0x7fb3127d6000 -> 0x7fb3127e9400 > xc: detail: elf_load_binary: phdr 3 at 0x7fb3127ea000 -> 0x7fb3128c5000 > domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn 0x205b+0x81b at 0x7fb3112d1000 > domainbuilder: detail: xc_dom_alloc_segment: ramdisk : 0xffffffff8205b000 -> 0xffffffff82876000 (pfn 0x205b + 0x81b pages) > domainbuilder: detail: xc_dom_do_gunzip: unzip ok, 0x391203 -> 0x81a810 > domainbuilder: detail: xc_dom_pfn_to_ptr_retcount: domU mapping: pfn 0x2876+0x20 at 0x7fb3182d9000 > domainbuilder: detail: xc_dom_alloc_segment: phys2mach : 0xffffffff82876000 -> 0xffffffff82896000 (pfn 0x2876 + 0x20 pages) > domainbuilder: detail: xc_dom_alloc_page : start info : 0xffffffff82896000 (pfn 0x2896) > domainbuilder: detail: xc_dom_alloc_page : xenstore : 0xffffffff82897000 (pfn 0x2897) > domainbuilder: detail: xc_dom_alloc_page : console : 0xffffffff82898000 (pfn 0x2898) > xc: error: panic: xc_dom_x86.c:147: count_pgtables: not enough memory for initial mapping (0x5498 > 0x4000): Out of memory > libxl: error: libxl_dom.c:655:libxl__build_dom: xc_dom_build_image failed: No such file or directory > domainbuilder: detail: xc_dom_release: called > libxl: error: libxl_create.c:1171:domcreate_rebuild_done: cannot (re-)build domain: -3 > libxl: error: libxl.c:1610:libxl__destroy_domid: non-existant domain 14 > libxl: error: libxl.c:1568:domain_destroy_callback: unable to destroy guest with domid 14 > libxl: error: libxl.c:1497:domain_destroy_cb: destruction of domain 14 failed Thanks, I think I've already found the problem. It's just a wrong sanity check. I'm preparing a patch. Juergen ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2016-02-08 12:30 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2016-02-08 11:18 Can't create small PV guest anymore (64MB) Anthony PERARD 2016-02-08 11:50 ` Juergen Gross 2016-02-08 12:06 ` Anthony PERARD 2016-02-08 12:30 ` Juergen Gross
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