[openib-general] libehca causes segfault when not physically present..

[Heiko J Schick]

Hello Troy,

this bug should be fixed in OpenIB trunk 3960.

Many thanks for pointing out this problem.

Regards,
	Heiko

Troy Benjegerdes wrote:
> On an Openpower720 system with a mellanox HCA (and no IBM ehca
> installed), I get the following when trying to run ibv_rc_pingpong:
> 
> Starting program:
> /usr/src/openib-src/userspace/libibverbs/examples/.libs/ibv_rc_pingpong
> [Thread debugging using libthread_db enabled]
> [New Thread 4398046660640 (LWP 6167)]
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 4398046660640 (LWP 6167)]
> hipz_galpa_store (galpa={fw_handle = 0}, offset=48, value=0)
>     at src/hcp_phyp.c:72
> 72              *(u64 *) addr = value;
> (gdb) bt
> #0  hipz_galpa_store (galpa={fw_handle = 0}, offset=48, value=0)
>     at src/hcp_phyp.c:72
> #1  0x0000000010001b7c in pp_post_recv (ctx=0x100177d0, n=-3807848)
>     at verbs.h:844
> #2  0x0000000010002364 in main (argc=Variable "argc" is not available.
> ) at examples/rc_pingpong.c:566
> 
> 
> I assume this means something somewhere is not actually checking sysfs
> to see if the driver is actually there and active.
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-- 

Mit freundlichen Gruessen / Kind Regards
Heiko Joerg Schick

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Heiko J Schick
I/O Firmware Development II
Linux InfiniBand Device Drivers

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