[Xen-bugs] [Bug 395] New: kernel BUG at arch/xen/i386/mm/hypervisor.c:354 (xen_create _contiguous_region)!

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=395

           Summary: kernel BUG at arch/xen/i386/mm/hypervisor.c:354
                    (xen_create _contiguous_region)!
           Product: Xen
           Version: unstable
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: critical
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: dbarrera@xxxxxxxxxx
                CC: hohnbaum@xxxxxxxxxx,pl@xxxxxxxxxx


The guest domain crashed during the routine daily tests that I ran. 

Machine: IBM ThinkCentre, 1GB of RAM with FC3 based setup.
Xen build, PAE enabled
changeset:   7701:abbe3df33774

[root@thinkcentre-dom0 xen-unstable.hg]# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 3
model name      : Intel(R) Pentium(R) 4 CPU 3.00GHz
stepping        : 4
cpu MHz         : 2992.638
cache size      : 1024 KB
fdiv_bug        : no
hlt_bug         : yes
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 3
wp              : yes
flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush
dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor ds_cpl cid xtpr
bogomips        : 5976.88

Problem: 

kernel BUG at arch/xen/i386/mm/hypervisor.c:354 (xen_create _contiguous_region)!
 Ä<c011847b>Ü xen_create_contiguous_region+0x2eb/0x360
 Ä<c026761e>Ü net_rx_action+0x13e/0x220
 Ä<c01072d9>Ü skbuff_ctor+0x69/0x70
 Ä<c014d965>Ü cache_init_objs+0x55/0x90
 Ä<c014db8c>Ü cache_grow+0x13c/0x240
 Ä<c014deb6>Ü cache_alloc_refill+0x226/0x260
 Ä<c014e14c>Ü kmem_cache_alloc+0x9c/0xb0
 Ä<c02601cd>Ü alloc_skb_from_cache+0x4d/0x100
 Ä<c01071cb>Ü alloc_skb+0x9b/0xc0
 Ä<c025ee90>Ü sock_alloc_send_pskb+0xc0/0x1d0
 Ä<c025efcd>Ü sock_alloc_send_skb+0x2d/0x40
 Ä<c02aff19>Ü unix_stream_sendmsg+0x199/0x470
 Ä<c02c52a2>Ü schedule+0x3f2/0x780
 Ä<c025be31>Ü sock_aio_write+0x101/0x120
 Ä<c01778df>Ü pipe_wait+0x8f/0xb0
 Ä<c0169c39>Ü do_sync_write+0xc9/0x110
 Ä<c0177c0a>Ü pipe_readv+0x2ba/0x360
 Ä<c0139200>Ü autoremove_wake_function+0x0/0x60
 Ä<c0199c9a>Ü dnotify_parent+0x3a/0xe0
 Ä<c0177ce8>Ü pipe_read+0x38/0x40
 Ä<c0169d2c>Ü vfs_write+0xac/0x160
 Ä<c0169eb1>Ü sys_write+0x51/0x80
 Ä<c010a1e9>Ü syscall_call+0x7/0xb
Kernel panic - not syncing: BUG!

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