On Tue, 31 Jan 2006 19:07:35 -0800
chandra seetharaman <[EMAIL PROTECTED]> wrote:
> I tried to use the controller but having some problems.
>
> - Created class a,
> - set guarantee to 50(with parent having 100, i expected class a to get
> 50% of memory in the system).
> - moved my shell to class a.
> - Issued a make in the kernel tree.
> It consistently fails with
> -----------
> make: getcwd: : Cannot allocate memory
> Makefile:313: /scripts/Kbuild.include: No such file or directory
> Makefile:532: /arch/i386/Makefile: No such file or directory
> Can't open perl script "/scripts/setlocalversion": No such file or
> directory
> make: *** No rule to make target `/arch/i386/Makefile'. Stop.
> -----------
> Note that the compilation succeeds if I move my shell to the default
> class.
Hmm... That should be a bug in the pzones because the default class
has the same number of pages as the class a.
Could you show me the output of "cat /proc/zoneinfo" after setting up
the class a? The information would help me debugging.
> I got a oops too:
> ------------------------------
> kernel BUG at mm/page_alloc.c:1074!
> invalid operand: 0000 [#1]
> SMP
> Modules linked in:
> CPU: 1
> EIP: 0060:[<c013768d>] Not tainted VLI
> EFLAGS: 00010256 (2.6.15n)
> EIP is at __free_pages+0x17/0x42
> eax: 00000000 ebx: 00000000 ecx: c17f8b80 edx: c17f8b80
> esi: f7c85578 edi: c1931e20 ebp: c1931a20 esp: d9799f98
> ds: 007b es: 007b ss: 0068
> Process make (pid: 12576, threadinfo=d9798000 task=f6324530)
> Stack: c1931e20 c01637d1 ffc5c000 0000001b bfe6c930 bfe6c930 00001000
> d9798000
> c01026fb bfe6c930 00001000 40143f0c bfe6c930 00001000 bfe6c098
> 000000b7
> 0000007b c010007b 000000b7 ffffe410 00000073 00000286 bfe6c06c
> 0000007b
> Call Trace:
> [<c01637d1>] sys_getcwd+0x17f/0x18a
> [<c01026fb>] sysenter_past_esp+0x54/0x79
> Code: 4b 78 0e 8b 56 04 8b 44 9e 08 e8 da f8 ff ff eb ef 5b 5e c3 53 89
> c1 89 d3 89 c2 8b 00 f6 c4 40 74 03 8b 51 0c 8b 42 04 40 75 08 <0f> 0b
> 32 04 45 72 30 c0 f0 83 41 04 ff 0f 98 c0 84 c0 74 15 85
> -------------------------------------
> Note: "if (put_page_testzero(page)) {" is line 1074 in my source tree
>
> Also, I do not see a mem= line in the stats file for the default class.
My source tree has the same line. I'll investigate the oops.
Thanks for the report,
--
KUROSAWA, Takahiro
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