[dpdk-dev] rte_eal_init() causes PANIC using latest DPDK code.

[Qiu, Michael]

Hi Tetsuya,

I see two lines log like:

EAL:   cannot open VFIO container, error 2 (No such file or directory)
EAL: VFIO support could not be initialized

It should not happen as I have a patch merged to master branch.

There should have something wrong, could you please help me to debug this?

All I needed are the results of:
1.  cat /proc/modules
2. lsmod | grep vfio
3. ls -al /dev/vfio
4. uname -a

Thanks,
Michael

On 2015/1/19 16:54, Doherty, Declan wrote:
>> -----Original Message-----
>> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Tetsuya Mukawa
>> Sent: Monday, January 19, 2015 7:11 AM
>> To: dev at dpdk.org
>> Subject: [dpdk-dev] rte_eal_init() causes PANIC using latest DPDK code.
>>
>> Hi,
>>
>> I've got following error using latest DPDK code.
>> Does someone face the same issue?
>> In my environment, It seems almost all DPDK apps (at lease l2fwd and
>> testpmd) cannot work.
>>
>> --------------------------------------------
>> EAL: Support maximum 128 logical core(s) by configuration.
>> EAL: Detected 8 lcore(s)
>> EAL:   cannot open VFIO container, error 2 (No such file or directory)
>> EAL: VFIO support could not be initialized
>> EAL: Setting up memory...
>> EAL: Ask a virtual area of 0x280000000 bytes
>> EAL: Virtual area found at 0x7ffd40000000 (size = 0x280000000)
>> EAL: Requesting 10 pages of size 1024MB from socket 0
>> RING: Cannot reserve memory for tailq
>> EAL: rte_eal_common_log_init(): cannot create log_history mempool
>> PANIC in rte_eal_init():
>> Cannot init logs
>> 6: [./build/l2fwd() [0x41cf53]]
>> 5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
>> [0x7ffff7105ec5]]
>> 4: [./build/l2fwd(main+0x1c) [0x41c52c]]
>> 3: [./build/l2fwd(rte_eal_init+0x1073) [0x46a653]]
>> 2: [./build/l2fwd(__rte_panic+0xc9) [0x41c3ff]]
>> 1: [./build/l2fwd(rte_dump_stack+0x18) [0x471828]]
>> --------------------------------------------
>>
>> I tried bisect, and it seems below patch causes this.
>> "eal: fix check for power of 2 in 0 case".
>>
>>
>> Thanks,
>> Tetsuya
>>
>>
> Hey Tetsuya, 
>
> This is the issue which my patch (http://dpdk.org/dev/patchwork/patch/2333/) submitted on Friday addresses.
>
>