Hi, IA64 netbk issue is occured by fail of copy_from_guest. And IA64 issue is occured when initialization of netfront on domU. So I think this issue is not related to IA64 issue. BTW, I don't know that kernel-xen really need to modularize netback/front. I think builtin netback/front is better. (Because IA64 issue is not occured when builtin netback/front) Best Regards, Akio Takebe >Hi All > >I'm not sure if this is related to the IA64 netbk kernel panic that was >just reported, but on my x86-32/PAE system, I'm seeing a crash as soon as >netbk is loaded in Dom0. I'm using a fresh FC5 system with all updates >merged. Specifically, the kernel is kernel-xen-2.6.17-1.2157_FC5 and xen >is xen-3.0.2-3.FC5. > >If I flip back to the kernel-xen0-2.6.17-1.2157_FC5 kernel (and non-PAE >domU kernel, of course), the network works perfectly all the way from domU >to the LAN. > >The hardware is a 2p Opteron system with 16GB of RAM. The NICs are >broadcom BCM5702s using the tg3 driver, for what it's worth. > >I have a machine dedicated to this testing, so I'm happy to test any other >kernels, configs, whatever else helps. I can throw this in bugzilla as >well if it'd be helpful, let me know. > >Thanks! > >-Matt > >Gory details below... > >-bash-3.1# modprobe netbk >printk: 27 messages suppressed. >modprobe: page allocation failure. order:8, mode:0xd0 > <c044844a> __alloc_pages+0x298/0x2ac <c0448483> >__get_free_pages+0x25/0x34 > <c0549ebe> balloon_alloc_empty_page_range+0x34/0x167 <c902c05b> >netback_init+0x5b/0x16d [netbk] > <c902c0b1> netback_init+0xb1/0x16d [netbk] <c042b092> >blocking_notifier_call_chain+0x31/0x48 > <c0438def> sys_init_module+0x15df/0x178a <c05b115a> >register_netdevice+0x0/0x31a > <c0404bff> syscall_call+0x7/0xb >Mem-info: >DMA per-cpu: >cpu 0 hot: high 42, batch 7 used:2 >cpu 0 cold: high 14, batch 3 used:0 >cpu 1 hot: high 42, batch 7 used:8 >cpu 1 cold: high 14, batch 3 used:11 >DMA32 per-cpu: empty >Normal per-cpu: empty >HighMem per-cpu: empty >Free pages: 6504kB (0kB HighMem) >Active:7358 inactive:2693 dirty:34 writeback:0 unstable:0 free:1626 >slab:2194 mapped:5098 pagetables:331 >DMA free:6504kB min:1492kB low:1864kB high:2236kB active:29432kB >inactive:10772kB present:139264kB pages_scanned:0 all_unreclaimable? no >lowmem_reserve[]: 0 0 0 0 >DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB >present:0kB pages_scanned:0 all_unreclaimable? no >lowmem_reserve[]: 0 0 0 0 >Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB >present:0kB pages_scanned:0 all_unreclaimable? no >lowmem_reserve[]: 0 0 0 0 >HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB >present:0kB pages_scanned:0 all_unreclaimable? no >lowmem_reserve[]: 0 0 0 0 >DMA: 293*4kB 205*8kB 49*16kB 16*32kB 3*64kB 3*128kB 3*256kB 0*512kB >1*1024kB 0*2048kB 0*4096kB = 6476kB >DMA32: empty >Normal: empty >HighMem: empty >Swap cache: add 0, delete 0, find 0/0, race 0+0 >Free swap = 1052248kB >Total swap = 1052248kB >Free swap: 1052248kB >34816 pages of RAM >0 pages of HIGHMEM >17798 reserved pages >8132 pages shared >0 pages swap cached >34 pages dirty >0 pages writeback >5093 pages mapped >2195 pages slab >321 pages pagetables >------------[ cut here ]------------ >kernel BUG at drivers/xen/netback/netback.c:1073! >invalid opcode: 0000 [#1] >SMP >Modules linked in: netbk ipv6 eeprom adm1026 hwmon_vid hwmon hidp l2cap >bluetooth dm_mirror dm_mod video button battery ac parport_pc lp parport >i2c_amd756 i2c_core sg hw_random tg3 ext3 jbd 3w_9xxx sd_mod scsi_mod >CPU: 1 >EIP: 0061:[<c902c0b8>] Not tainted VLI >EFLAGS: 00010246 (2.6.17-1.2157_FC5xen #1) >EIP is at netback_init+0xb8/0x16d [netbk] >eax: 00000000 ebx: c658fed0 ecx: c0622b14 edx: ffffff29 >esi: c91f6000 edi: c5c7fff8 ebp: c5c7ffc0 esp: c658feb0 >ds: 007b es: 007b ss: 0069 >Process modprobe (pid: 1722, threadinfo=c658e000 task=c08130d0) >Stack: <0>c066c3e0 c91f6000 c5c7fff8 c042b092 00000001 dead4ead ffffffff >ffffffff > 00000001 dead4ead ffffffff ffffffff c5c7ffe0 c0438def 00000017 >00000398 > 00007354 00000ae0 c9203f80 00000000 00000000 00000000 00000000 >00000000 >Call Trace: > <c042b092> blocking_notifier_call_chain+0x31/0x48 <c0438def> >sys_init_module+0x15df/0x178a > <c05b115a> register_netdevice+0x0/0x31a <c0404bff> syscall_call+0x7/0xb >Code: 00 e8 61 b0 3f f7 c7 05 14 51 20 c9 00 00 00 00 c7 05 10 51 20 c9 b7 >f3 1f c9 68 00 01 00 00 e8 d9 dd 51 f7 83 c4 10 85 c0 75 08 <0f> 0b 31 04 >28 13 20 c9 89 c2 31 c9 2b 15 10 7a 74 c0 c1 fa 05 >EIP: [<c902c0b8>] netback_init+0xb8/0x16d [netbk] SS:ESP 0069:c658feb0 > Segmentation fault >-bash-3.1# > ># /usr/sbin/xm info >host : linux-test-108.phlinux.com >release : 2.6.17-1.2157_FC5xen >version : #1 SMP Tue Jul 11 23:55:13 EDT 2006 >machine : i686 >nr_cpus : 2 >nr_nodes : 1 >sockets_per_node : 2 >cores_per_socket : 1 >threads_per_core : 1 >cpu_mhz : 2405 >hw_caps : >00000000:00000000:078bfbff:e1d3fbff:00000000:00000010 >total_memory : 16255 >free_memory : 16004 >xen_major : 3 >xen_minor : 0 >xen_extra : -unstable >xen_caps : xen-3.0-x86_32p >platform_params : virt_start=0xf5800000 >xen_changeset : unavailable >cc_compiler : gcc version 4.1.1 20060525 (Red Hat 4.1.1-1) >cc_compile_by : brewbuilder >cc_compile_domain : build.redhat.com >cc_compile_date : Tue Jul 11 22:50:14 EDT 2006 > ># /usr/sbin/xm dmesg > __ __ _____ ___ _ _ _ > \ \/ /___ _ __ |___ / / _ \ _ _ _ __ ___| |_ __ _| |__ | | ___ > \ // _ \ '_ \ |_ \| | | |__| | | | '_ \/ __| __/ _` | '_ \| |/ _ \ > / \ __/ | | | ___) | |_| |__| |_| | | | \__ \ || (_| | |_) | | __/ > /_/\_\___|_| |_| |____(_)___/ \__,_|_| |_|___/\__\__,_|_.__/|_|\___| > > http://www.cl.cam.ac.uk/netos/xen > University of Cambridge Computer Laboratory > > Xen version 3.0-unstable (brewbuilder@xxxxxxxxxxxxxxxx) (gcc version >4.1.1 20060525 (Red Hat 4.1.1-1)) Tue Jul 11 22:50:14 EDT 2006 > Latest ChangeSet: unavailable > >(XEN) Command line: /xen.gz-2.6.17-1.2157_FC5-PAE console=com2,vga >nmi=dom0 dom0_mem=131072 com1=9600,8n1 com2=9600,8n1 >(XEN) Physical RAM map: >(XEN) 0000000000000000 - 000000000009a800 (usable) >(XEN) 000000000009a800 - 00000000000a0000 (reserved) >(XEN) 00000000000ce000 - 0000000000100000 (reserved) >(XEN) 0000000000100000 - 00000000f7f60000 (usable) >(XEN) 00000000f7f60000 - 00000000f7f72000 (ACPI data) >(XEN) 00000000f7f72000 - 00000000f7f80000 (ACPI NVS) >(XEN) 00000000f7f80000 - 00000000f8000000 (reserved) >(XEN) 00000000fec00000 - 00000000fec00400 (reserved) >(XEN) 00000000fee00000 - 00000000fee01000 (reserved) >(XEN) 00000000fff80000 - 0000000100000000 (reserved) >(XEN) 0000000100000000 - 0000000400000000 (usable) >(XEN) System RAM: 16254MB (16645096kB) >(XEN) Xen heap: 9MB (9472kB) >(XEN) Using scheduler: SMP Credit Scheduler (credit) >(XEN) PAE enabled, limit: 16 GB >(XEN) found SMP MP-table at 000f77f0 >(XEN) DMI present. >(XEN) Using APIC driver default >(XEN) ACPI: RSDP (v002 PTLTD ) @ >0x000f7790 >(XEN) ACPI: XSDT (v001 PTLTD XSDT 0x06040000 LTP 0x00000000) @ >0xf7f6f1aa(XEN) ACPI: FADT (v003 AMD HAMMER 0x06040000 PTEC >0x000f4240) @ 0xf7f71b4a >(XEN) ACPI: SSDT (v001 PTLTD POWERNOW 0x06040000 LTP 0x00000001) @ >0xf7f71c3e >(XEN) ACPI: SRAT (v001 AMD HAMMER 0x06040000 AMD 0x00000001) @ >0xf7f71e4a >(XEN) ACPI: MADT (v001 PTLTD APIC 0x06040000 LTP 0x00000000) @ >0xf7f71f3a(XEN) ACPI: SPCR (v001 PTLTD $UCRTBL$ 0x06040000 PTL >0x00000001) @ 0xf7f71fb0 >(XEN) ACPI: DSDT (v001 AMD-K8 AMDACPI 0x06040000 MSFT 0x0100000e) @ >0x00000000 >(XEN) ACPI: Local APIC address 0xfee00000 >(XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) >(XEN) Processor #0 15:5 APIC version 16 >(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) >(XEN) Processor #1 15:5 APIC version 16 >(XEN) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) >(XEN) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) >(XEN) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) >(XEN) IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23 >(XEN) ACPI: IOAPIC (id[0x03] address[0xfb000000] gsi_base[24]) >(XEN) IOAPIC[1]: apic_id 3, version 17, address 0xfb000000, GSI 24-27 >(XEN) ACPI: IOAPIC (id[0x04] address[0xfb001000] gsi_base[28]) >(XEN) IOAPIC[2]: apic_id 4, version 17, address 0xfb001000, GSI 28-31 >(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge) >(XEN) ACPI: IRQ0 used by override. >(XEN) ACPI: IRQ2 used by override. >(XEN) Enabling APIC mode: Flat. Using 3 I/O APICs >(XEN) Using ACPI (MADT) for SMP configuration information >(XEN) Initializing CPU#0 >(XEN) Detected 2405.466 MHz processor. >(XEN) CPU0: AMD Flush Filter disabled >(XEN) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) >(XEN) CPU: L2 Cache: 1024K (64 bytes/line) >(XEN) Intel machine check architecture supported. >(XEN) Intel machine check reporting enabled on CPU#0. >(XEN) CPU0: AMD Opteron(tm) Processor 250 stepping 0a >(XEN) Booting processor 1/1 eip 90000 >(XEN) Initializing CPU#1 >(XEN) CPU1: AMD Flush Filter disabled >(XEN) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) >(XEN) CPU: L2 Cache: 1024K (64 bytes/line) >(XEN) AMD: Disabling C1 Clock Ramping Node #0 >(XEN) AMD: Disabling C1 Clock Ramping Node #1 >(XEN) Intel machine check architecture supported. >(XEN) Intel machine check reporting enabled on CPU#1. >(XEN) CPU1: AMD Opteron(tm) Processor 250 stepping 0a >(XEN) Total of 2 processors activated. >(XEN) ENABLING IO-APIC IRQs >(XEN) -> Using new ACK method >(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=0 pin2=0 >(XEN) checking TSC synchronization across 2 CPUs: passed. >(XEN) Platform timer is 1.193MHz PIT >(XEN) Brought up 2 CPUs >(XEN) Machine check exception polling timer started. >(XEN) *** LOADING DOMAIN 0 *** >(XEN) Domain 0 kernel supports features = { 0000001f }. >(XEN) Domain 0 kernel requires features = { 00000000 }. >(XEN) PHYSICAL MEMORY ARRANGEMENT: >(XEN) Dom0 alloc.: 000000000f000000->0000000010000000 (28672 pages to >be allocated) >(XEN) VIRTUAL MEMORY ARRANGEMENT: >(XEN) Loaded kernel: c0400000->c076a9fc >(XEN) Init. ramdisk: c076b000->c0990e00 >(XEN) Phys-Mach map: c0991000->c09b1000 >(XEN) Start info: c09b1000->c09b2000 >(XEN) Page tables: c09b2000->c09bd000 >(XEN) Boot stack: c09bd000->c09be000 >(XEN) TOTAL: c0000000->c0c00000 >(XEN) ENTRY ADDRESS: c0400000 >(XEN) Dom0 has maximum 2 VCPUs >(XEN) Initrd len 0x225e00, start at 0xc076b000 >(XEN) Scrubbing Free RAM: >........................................................................... >........................................................................... >..............done. >(XEN) Xen trace buffers: disabled >(XEN) Xen is relinquishing VGA console. >(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input >to Xen). >(XEN) (file=io_apic.c, line=2061) >(XEN) ioapic_guest_write: apic=0, pin=4, old_irq=4, new_irq=4 >(XEN) ioapic_guest_write: old_entry=000009f1, new_entry=000109f1 >(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ! >(XEN) (file=io_apic.c, line=2061) >(XEN) ioapic_guest_write: apic=0, pin=3, old_irq=3, new_irq=3 >(XEN) ioapic_guest_write: old_entry=000009f2, new_entry=000109f2 >(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ! >(XEN) (file=dom0_ops.c, line=396) Domain 0 says that IO-APIC REGSEL is >good > > >-- > >Fedora-xen@xxxxxxxxxx >https://www.redhat.com/mailman/listinfo/fedora-xen -- Fedora-xen@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-xen
