Re: [uml-devel] do_syscall_stub: syscall 9 failed

[Antoine Martin <antoine@nagafix.co.uk>]

Jeff Dike wrote:
> On Tue, Jan 30, 2007 at 06:36:15PM +0000, Antoine Martin wrote:
>> Just caught this in `dmesg`
>>
>> [42977596.520000] Adding 131064k swap on /dev/ubdb.  Priority:-1 
>> extents:1 across:131064k
>> [42980169.290000] do_syscall_stub : ret = -12, offset = 548682067984, 
>> data = 0000000060b16010
>> [42980169.290000] do_syscall_stub: syscall 9 failed, return value = 
>> 0xfffffffffffffff4, expected return value = 0x477a000
>> [42980169.290000]     syscall parameters: 0x477a000 0x1000 0x7 0x11 0x3 
>> 0xad0c000
>> [42980169.290000] fix_range_common: failed, killing current process
>>
>> Whilst trying to compile gcc (big beast) on a 64-bit UML instance.
>> Earlier it had failed and triggered OOM, which is why I added the swap, 
>> now it may still not have enough (compilation crashed in a similar 
>> manner) but this time there is no OOM message.
>>
>> Any ideas what this is?
> 
> Sounds like it might be the host /proc/sys/vm/max_map_count being
> exceeded, which will happen with a UML process with 256M RSS.
Indeed it was (never heard of it before)

Thanks!
Antoine

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