Messages in this thread | | | Date | Thu, 1 Mar 2012 09:06:55 -0400 | Subject | Re: [PATCH v4 0/5] x86: Cleanup and simplify cpu-specific data | From | Kevin Winchester <> |
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On 28 February 2012 04:31, H. Peter Anvin <hpa@zytor.com> wrote: > Better yet, fix the problem... >
It appears that some attempts have been made at fixing this problem already:
https://lkml.org/lkml/2011/7/6/6 https://lkml.org/lkml/2011/7/7/480
So perhaps I can just turn off that config setting for now. I'm going away for a few days, but I'll try to fix up the patch series next week.
> Ingo Molnar <mingo@elte.hu> wrote: > >> >>* H. Peter Anvin <hpa@zytor.com> wrote: >> >>> >In function ‘copy_from_user’, >>> > inlined from ‘pktgen_if_write’ at net/core/pktgen.c:877:20: >>> >>>/home/kevin/linux/linux-2.6/arch/x86/include/asm/uaccess_32.h:211:26: >>> >error: call to ‘copy_from_user_overflow’ declared with attribute >>> >error: copy_from_user() buffer size is not provably correct >>> >make[2]: *** [net/core/pktgen.o] Error 1 >>> > >>> >On: >>> > >>> >gcc (GCC) 4.6.2 20120120 (prerelease) >>> > >>> >Is that my fault, or something else? >>> > >>> >Kevin >>> > >>> >>> That comes from compiling with warnings as errors. Not that someone >>> shouldn't look at that kind of problem. >> >>Can probably be worked around by disabling: >> >>CONFIG_DEBUG_STRICT_USER_COPY_CHECKS >> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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