[-next Nov 25] eHEA driver failure during boot.

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eHEA driver fails to initialize on a power6 box while booting
20091125 next(f3645ca..). Following are the messages which gets
logged during failure.


Unable to handle kernel paging request for data at address 0x409d0148e8e40018
Faulting instruction address: 0xc00000000003c0cc
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=1024 NUMA pSeries
Modules linked in: fuse loop dm_mod sr_mod cdrom ehea sg sd_mod crc_t10dif ibmvscsic scsi_transport_srp scsi_tgt scsi_mod
NIP: c00000000003c0cc LR: c00000000003ce50 CTR: 0000000000091b94
REGS: c00000000cade820 TRAP: 0300   Not tainted  (2.6.32-rc8-autotest-next-20091125)
MSR: 8000000000001032 <ME,IR,DR>  CR: 28020424  XER: 00000020
DAR: 409d0148e8e40018, DSISR: 0000000040000000
TASK = c00000000c818d60[1683] 'ip' THREAD: c00000000cadc000 CPU: 1
GPR00: 0000000000000010 c00000000cadeaa0 c000000000b28340 409d0148e8e40008
GPR04: d00008008000f040 c00000000cadeb20 0000000000001000 0000000000000000
GPR08: 000000000000001c c0000000018c0398 0000000000000000 c000000000bc0000
GPR12: 8000000000009032 c000000000bc2880 00000000ffffffff ffffffffffffffff
GPR16: 00000000203c8fc0 c00000000cadf4a8 c00000000cadf450 c00000000e4c0000
GPR20: 0000000000000300 0000000000000201 c000000000c68590 c000000000bc0000
GPR24: 0000000000000000 0000000000e5f87e 0000000000000001 c000000009920000
GPR28: 0000000000000000 d00008008000f040 0000000000000000 c000000000a63328
NIP [c00000000003c0cc] .subpage_protection+0x48/0x8c
LR [c00000000003ce50] .hash_page+0x3e0/0x45c
Call Trace:
[c00000000cadeaa0] [00000000ffffffff] 0xffffffff (unreliable)
[c00000000cadeb90] [c0000000000055d0] .do_hash_page+0x50/0x6c
--- Exception: 301 at .ehea_create_cq+0x234/0x2bc [ehea]
   LR = .ehea_create_cq+0x1c0/0x2bc [ehea]
[c00000000cadef40] [d0000000015e46fc] .ehea_init_port_res+0xb4/0x47c [ehea]
[c00000000cadf000] [d0000000015e4bd8] .ehea_up+0x114/0x6bc [ehea]
[c00000000cadf110] [d0000000015e51e0] .ehea_open+0x60/0x114 [ehea]
[c00000000cadf1b0] [c000000000542e7c] .dev_open+0x11c/0x19c
[c00000000cadf240] [c000000000541e7c] .dev_change_flags+0x10c/0x214
[c00000000cadf2e0] [c00000000054e0f8] .do_setlink+0x304/0x41c
[c00000000cadf3c0] [c00000000054f324] .rtnl_newlink+0x388/0x600
[c00000000cadf5d0] [c00000000054ef50] .rtnetlink_rcv_msg+0x260/0x2ac
[c00000000cadf680] [c000000000568104] .netlink_rcv_skb+0x74/0x108
[c00000000cadf710] [c00000000054eccc] .rtnetlink_rcv+0x34/0x58
[c00000000cadf7a0] [c000000000567bfc] .netlink_unicast+0x32c/0x408
[c00000000cadf870] [c0000000005688d8] .netlink_sendmsg+0x2d0/0x310
[c00000000cadf950] [c000000000529c9c] .sock_sendmsg+0xe0/0x11c
[c00000000cadfb50] [c000000000529fc8] .SyS_sendmsg+0x1f4/0x288
[c00000000cadfd70] [c000000000527f88] .SyS_socketcall+0x214/0x280
[c00000000cadfe30] [c0000000000085b4] syscall_exit+0x0/0x40
Instruction dump:
78000020 7fa40040 409d0020 7889aae0 39290072 79291f24 7d2b4a14 e8690010
2fa30000 419e0048 788014e2 78001f24 <7c63002a> 2fa30000 419e0034 788084a2
---[ end trace cacb4bbddb53f7bd ]---


Thanks
-Sachin

--

---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
---------------------------------

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