Linux process causes kernel panic

[Vladimir Kondratyev]

On 8/6/18 11:41 PM, Konstantin Belousov wrote:
>>> linux_sys_futex(0x33b0fac,0x85,0x1,0x1,0x33b0fa8,0x4000001)
>>> -- here it stops --
>> Can you fix your mail client ?

Unfortunately, it did all that dumb wraps at send time not at edit. Sorry.

>>> ddb also shows that process is looping somewhere inside linux_sys_futex()
>> There are two bugs.  One is that ifuncs handling for relocations against
>> local symbols in elf obj modules was missed.  Patch below fixed it for me.
>>
>> Second bug is that futexes seems to not handle accesses to the CoW
>> mappings which are not yet copied.  I think that the second bug is
>> irrelevant for your case, since it worked before.
>>
>> Try this patch in addition to the linux/ patches I sent before.

It fixed skype for me too! Thank you!