Re: [BUG] Bad page map in process ibv_devinfo

[Lukas Razik <linux-GLgANOly0l1BDLzU/O5InQ@public.gmane.org>]

Roland Dreier <roland-BHEL68pLQRGGvPXPguhicg@public.gmane.org> wrote:

> On Tue, Nov 15, 2011 at 11:10 AM, Roland Dreier <roland@purestorage.com> 
> wrote:
>>  Sorry, I missed the "vanilla" in your original email and just saw 
> "OFED".
>> 
>>  Anyway yes, looks like a bug in the mlx4 driver.
> 
> Actually where is your mlx4 driver coming from?  The upstream kernel or OFED?

It comes from OFED.
Here it's from OFED-1.5.4 (although you see v1.0-ofed1.5.3 in the kernel log).I think at this point it's useful to show all relevant (i.e. ofed regarding) parts of the kernel log:

[  195.010076] mlx4_core: Mellanox ConnectX core driver v1.0-ofed1.5.3 (January 19, 2011)
[  195.010208] mlx4_core: Initializing 0000:12:00.0
[  195.010294] PCI: Enabling device: (0000:12:00.0), cmd 2
[  195.010356] mlx4_core 0000:12:00.0: Warning: couldn't set 64-bit PCI DMA mask.
[  195.010469] mlx4_core 0000:12:00.0: Warning: couldn't set 64-bit consistent PCI DMA mask.
<snip>
[  197.479244] Kernel unaligned access at TPC[10061624] mlx4_QUERY_ADAPTER+0xf0/0x11c [mlx4_core]
[  197.479424] Kernel unaligned access at TPC[10061624] mlx4_QUERY_ADAPTER+0xf0/0x11c [mlx4_core]
[  197.479594] Kernel unaligned access at TPC[10061624] mlx4_QUERY_ADAPTER+0xf0/0x11c [mlx4_core]
[  197.479764] Kernel unaligned access at TPC[10061624] mlx4_QUERY_ADAPTER+0xf0/0x11c [mlx4_core]

<snip>

[  231.377790] mlx4_ib: Mellanox ConnectX InfiniBand driver v1.0-ofed1.5.3 (January 19, 2011)
[  232.217620] ADDRCONF(NETDEV_UP): ib0: link is not ready
[  233.782679] ib0: enabling connected mode will cause multicast packet drops
[  233.782810] ib0: mtu > 2044 will cause multicast packet drops.
[  233.782916] ib0: mtu > 2044 will cause multicast packet drops.
[  234.860368] ib1: enabling connected mode will cause multicast packet drops
[  234.860502] ib1: mtu > 2044 will cause multicast packet drops.
[  234.860613] ib1: mtu > 2044 will cause multicast packet drops.
[  235.225652] ADDRCONF(NETDEV_CHANGE): ib0: link becomes ready
[  246.210384] ib0: no IPv6 routers present
[  650.857233] swap_free: Bad swap file entry 100005e000061800
[  650.857363] BUG: Bad page map in process ibv_devinfo  pte:bc0000c300104848 pmd:00fc9bc4
[  650.857481] addr:fffff80100114000 vm_flags:000844fa anon_vma:          (null) mapping:fffff807f6e06b38 index:6180082
[  650.857661] vma->vm_file->f_op->mmap: ib_uverbs_mmap+0x8/0x38 [ib_uverbs]
[  650.857708] Call Trace:
[  650.857747]  [00000000004cd430] unmap_vmas+0x514/0x7f4
[  650.857826]  [00000000004d114c] unmap_region+0xb4/0x164
[  650.857875]  [00000000004d2198] do_munmap+0x2a8/0x31c
[  650.857958]  [000000000042d340] SyS_64_munmap+0x88/0xa8
[  650.858042]  [0000000000406154] linux_sparc_syscall+0x34/0x44
[  650.858116] Disabling lock debugging due to kernel taint


Please ask if you need more information. I'll provide them promptly.

Regards,
Lukas
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html