[Fedora-xen] [BUG] [x86-32/PAE] modular netbk causes panic
Akio Takebe
takebe_akio at jp.fujitsu.com
Tue Aug 8 10:06:58 UTC 2006
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 at build.redhat.com) (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
>
>
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