ehea crash on boot

[Mathieu Malaterre]

On Fri, Sep 23, 2016 at 2:50 PM, Denis Kirjanov <kda at linux-powerpc.org> wrote:
> Heh, another thing to debug :)
>
> mm: Hashing failure ! EA=0xd000080080124040 access=0x800000000000000e
> current=NetworkManager
> trap=0x300 vsid=0x13d349c ssize=1 base psize=2 psize 2 pte=0xc0003bc0300301ae
> mm: Hashing failure ! EA=0xd000080080124040 access=0x800000000000000e
> current=NetworkManager
> trap=0x300 vsid=0x13d349c ssize=1 base psize=2 psize 2 pte=0xc0003bc0300301ae
> Unable to handle kernel paging request for data at address 0xd000080080124040
> Faulting instruction address: 0xc0000000006f21a0
> cpu 0x8: Vector: 300 (Data Access) at [c0000005a8b92b50]
> pc: c0000000006f21a0: .ehea_create_cq+0x160/0x230
> lr: c0000000006f2164: .ehea_create_cq+0x124/0x230
> sp: c0000005a8b92dd0
> msr: 8000000000009032
> dar: d000080080124040
> dsisr: 42000000
> current = 0xc0000005a8b68200
> paca = 0xc00000000ea94000 softe: 0 irq_happened: 0x01
> pid = 6787, comm = NetworkManager
> Linux version 4.8.0-rc6-00214-g4cea877 (kda at ps700) (gcc version 4.8.5
> 20150623 (Red Hat 4.8.5-4) (GCC) ) #1 SMP Fri Sep 23 15:01:08 MSK 2016
> enter ? for help
> [c0000005a8b92dd0] c0000000006f2140 .ehea_create_cq+0x100/0x230 (unreliable)
> [c0000005a8b92e70] c0000000006ed448 .ehea_up+0x288/0xed0
> [c0000005a8b92fe0] c0000000006ee314 .ehea_open+0x44/0x130
> [c0000005a8b93070] c000000000812324 .__dev_open+0x154/0x220
> [c0000005a8b93110] c000000000812734 .__dev_change_flags+0xd4/0x1e0
> [c0000005a8b931b0] c00000000081286c .dev_change_flags+0x2c/0x80
> [c0000005a8b93240] c000000000829f0c .do_setlink+0x37c/0xe50
> [c0000005a8b933c0] c00000000082c884 .rtnl_newlink+0x5e4/0x9b0
> [c0000005a8b936d0] c00000000082cd08 .rtnetlink_rcv_msg+0xb8/0x2f0
> [c0000005a8b937a0] c00000000084e25c .netlink_rcv_skb+0x12c/0x150
> [c0000005a8b93830] c000000000829458 .rtnetlink_rcv+0x38/0x60
> [c0000005a8b938b0] c00000000084d814 .netlink_unicast+0x1e4/0x350
> [c0000005a8b93960] c00000000084def8 .netlink_sendmsg+0x418/0x480
> [c0000005a8b93a40] c0000000007defac .sock_sendmsg+0x2c/0x60
> [c0000005a8b93ab0] c0000000007e0cbc .___sys_sendmsg+0x30c/0x320
> [c0000005a8b93c90] c0000000007e21bc .__sys_sendmsg+0x4c/0xb0
> [c0000005a8b93d80] c0000000007e2dec .SyS_socketcall+0x34c/0x3d0
> [c0000005a8b93e30] c00000000000946c system_call+0x38/0x108

Can you turn UBSAN on for this ?

-- 
Mathieu