[Bug 272828] Intel XL710 : kernel panic with SRVIO - intel-ixl-kmod-1.12.40

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272828

--- Comment #8 from Santiago Martinez <sm@codenetworks.net> ---
(In reply to Santiago Martinez from comment #7)
Hi Krzysztof, 

Today i was checking and it seems it is related to
https://reviews.freebsd.org/D35649. I think last time apply the patch but
loaded the old drivers.. sorry for that.

Adding the check of vsi-ifp equals NULL does work as then we are not calling
getcaps when ifp is NULL. I have also added a print line for me to follow. The
output looks like this (load driver, crate VF, delete VF).

[3097] ixl0: <Intel(R) Ethernet Connection 700 Series PF Driver, Version -
1.12.40> mem 0xb0800000-0xb0ffffff,0xb1808000-0xb180ffff irq 118 at device 0.0
on pci14
[3097] ixl0: using 1024 tx descriptors and 1024 rx descriptors
[3097] ixl0: fw 7.2.60285 api 1.9 nvm 7.20 etid 80008322 oem 1.266.0
[3097] ixl0: PF-ID[0]: VFs 64, MSI-X 129, VF MSI-X 5, QPs 768, I2C
[3097] ixl0: Using MSI-X interrupts with 9 vectors
[3097] ixl0: Allocating 8 queues for PF LAN VSI; 8 queues active
[3097] ixl0: Ethernet address: 3c:ec:ef:32:c3:ec
[3097] ixl0: Link is up, 40 Gbps Full Duplex, Requested FEC: None, Negotiated
FEC: None, Autoneg: False, Flow Control: None
[3097] ixl0: link state changed to UP
[3097] ixl0: PCI Express Bus: Speed 8.0GT/s Width x8
[3097] ixl0: SR-IOV ready
[3097] ixl0: The device is not iWARP enabled
[3097] ixl0: link state changed to DOWN
[3097] ixl1: <Intel(R) Ethernet Connection 700 Series PF Driver, Version -
1.12.40> mem 0xb0000000-0xb07fffff,0xb1800000-0xb1807fff irq 118 at device 0.1
on pci14
[3097] ixl1: using 1024 tx descriptors and 1024 rx descriptors
[3097] ixl1: fw 7.2.60285 api 1.9 nvm 7.20 etid 80008322 oem 1.266.0
[3097] ixl1: PF-ID[1]: VFs 64, MSI-X 129, VF MSI-X 5, QPs 768, I2C
[3097] ixl1: Using MSI-X interrupts with 9 vectors
[3097] ixl1: Allocating 8 queues for PF LAN VSI; 8 queues active
[3097] ixl1: Ethernet address: 3c:ec:ef:32:c3:ed
[3097] ixl1: PCI Express Bus: Speed 8.0GT/s Width x8
[3097] ixl1: SR-IOV ready
[3097] ixl1: The device is not iWARP enabled
[3098] ixl0: Link is up, 40 Gbps Full Duplex, Requested FEC: None, Negotiated
FEC: None, Autoneg: False, Flow Control: None
[3098] ixl0: link state changed to UP
[3098] ixl1: Link is up, 40 Gbps Full Duplex, Requested FEC: None, Negotiated
FEC: None, Autoneg: False, Flow Control: None
[3098] ixl1: link state changed to UP
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] vsi-ipf is null
[3098] ppt0 at device 0.16 on pci14
[3098] ppt1 at device 0.17 on pci14
[3098] ppt2 at device 0.18 on pci14
[3098] ppt3 at device 0.19 on pci14
[3098] ppt4 at device 0.20 on pci14
[3098] ppt5 at device 0.21 on pci14
[3098] ppt6 at device 0.22 on pci14
[3098] ppt7 at device 0.23 on pci14
[3098] ppt0: detached
[3098] ppt1: detached
[3098] ppt2: detached
[3098] ppt3: detached
[3098] ppt4: detached
[3098] ppt5: detached
[3098] ppt6: detached
[3098] ppt7: detached
[3099] ixl0: detached
[3099] pci14: <network, ethernet> at device 0.0 (no driver attached)
[3100] ixl1: detached
[3100] pci14: <network, ethernet> at device 0.1 (no driver attached)
[3100] Warning: memory type ixl leaked memory on destroy (8 allocations, 256
bytes leaked).

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