On Fri, Jun 20, 2014 at 07:02:41AM +0300, Or Gerlitz wrote: >On Fri, Jun 20, 2014 at 6:51 AM, Wei Yang <weiy...@linux.vnet.ibm.com> wrote: > >> >> mlx4_core 0000:40:00.0: Invalid syntax of num_vfs/probe_vfs with IB port >> >> - single port VFs syntax is only supported when all ports are configured >> >> as ethernet >> >> BUG: unable to handle kernel NULL pointer dereference at 000000000000038c >> >> IP: [<ffffffffa0350450>] __mlx4_remove_one+0x20/0x380 [mlx4_core] >> >> From this log, it happens during probe? >> If not, any action after probe? > >yep, maybe the bug still exists in the error flow of probe? you can probe with > >num_vfs=1,1,1 port_type_array=1,1 and see if you hit it >
I tried this modprobe mlx4_core num_vfs=3 probe_vf=3 port_type_array=1,1 It looks good to me. BTW, I didn't test 3.16-rc1, sine the SRIOV patch on power platform is not rebased to the latest kernel yet. > >> >> >> PGD 45d3ba067 PUD 45ace8067 PMD 0 >> >> Oops: 0000 [#1] SMP DEBUG_PAGEALLOC >> >> Modules linked in: mlx4_core(-) ebtable_nat ebtables ipt_MASQUERADE >> >> iptable_nat nf_nat_ipv4 nf_nat xt_CHECKSUM iptable_mangle bridge stp llc >> >> autofs4 cpufreq_ondemand ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 >> >> iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 >> >> xt_state nf_conntrack ip6table_filter ip6_tables dm_mirror dm_region_hash >> >> dm_log dm_mod vhost_net macvtap macvlan vhost tun kvm_intel kvm iTCO_wdt >> >> iTCO_vendor_support microcode ipmi_si ipmi_msghandler acpi_cpufreq pcspkr >> >> i2c_i801 i2c_core lpc_ich mfd_core shpchp sg ioatdma ib_sa ib_mad ib_core >> >> ib_addr ipv6 vxlan ixgbe dca ptp pps_core hwmon mdio ext3 jbd mbcache >> >> sd_mod crc_t10dif crct10dif_common usb_storage ahci libahci mpt2sas >> >> scsi_transport_sas raid_class [last unloaded: mlx4_core] >> >> CPU: 13 PID: 7212 Comm: rmmod Not tainted 3.16.0-rc1+ #1 >> >> Hardware name: Oracle Corporation SUN FIRE X4170 M3 >> >> /ASSY,MOTHERBOARD,1U , BIOS 17050100 08/29/2013 >> >> task: ffff880461540110 ti: ffff880465000000 task.ti: ffff880465000000 >> >> RIP: 0010:[<ffffffffa0350450>] [<ffffffffa0350450>] >> >> __mlx4_remove_one+0x20/0x380 [mlx4_core] >> >> RSP: 0018:ffff880465003d88 EFLAGS: 00010296 >> >> RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000 >> >> RDX: 0000000000000026 RSI: 0000000000000292 RDI: ffff880468b8f000 >> >> RBP: ffff880465003db8 R08: 0000000000000000 R09: 0000000000000000 >> >> R10: 09f911029d74e35b R11: 09f911029d74e35b R12: 0000000000000000 >> >> R13: ffff880468b8f000 R14: ffffffffa036de40 R15: 0000000000000001 >> >> FS: 00007ff287fc2700(0000) GS:ffff88046fce0000(0000) >> >> knlGS:0000000000000000 >> >> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> >> CR2: 000000000000038c CR3: 000000045cfae000 CR4: 00000000000407e0 >> >> Stack: >> >> ffff880465003da8 ffff880468b8f000 0000000000000000 ffff880468b8f000 >> >> ffffffffa036de40 0000000000000001 ffff880465003dd8 ffffffffa0350805 >> >> ffff880468b8f098 ffffffffa036dd60 ffff880465003e08 ffffffff812ebaa6 >> >> Call Trace: >> >> [<ffffffffa0350805>] mlx4_remove_one+0x25/0x50 [mlx4_core] >> >> [<ffffffff812ebaa6>] pci_device_remove+0x46/0xc0 >> >> [<ffffffff813ce08f>] __device_release_driver+0x7f/0xf0 >> >> [<ffffffff813ce1c8>] driver_detach+0xc8/0xd0 >> >> [<ffffffff813cced9>] bus_remove_driver+0x59/0xd0 >> >> [<ffffffff813cef80>] driver_unregister+0x30/0x70 >> >> [<ffffffff812ebc13>] pci_unregister_driver+0x23/0x80 >> >> [<ffffffffa03650e4>] mlx4_cleanup+0x10/0x1e [mlx4_core] >> >> [<ffffffff810ceff9>] SyS_delete_module+0x189/0x210 >> >> [<ffffffff815d2f12>] system_call_fastpath+0x16/0x1b >> >> Code: 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 >> >> 54 53 48 83 ec 08 66 66 66 66 90 48 8b 9f 58 01 00 00 49 89 fd <44> 8b b3 >> >> 8c 03 00 00 45 85 f6 0f 85 41 02 00 00 f6 43 08 04 44 >> >> RIP [<ffffffffa0350450>] __mlx4_remove_one+0x20/0x380 [mlx4_core] >> >> RSP <ffff880465003d88> >> >> CR2: 000000000000038c >> >> -- >> >> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in >> >> the body of a message to majord...@vger.kernel.org >> >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> -- >> Richard Yang >> Help you, Help me >> -- Richard Yang Help you, Help me -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
