Messages in this thread | | | Date | Sun, 24 Jul 2005 14:54:32 -0400 | From | Neil Horman <> | Subject | Re: Memory Management |
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On Sat, Jul 23, 2005 at 08:16:20PM -0300, Márcio Oliveira wrote: > Neil, > > >The best way I can think to do that is take a look at /proc/slabinfo. > >That will > >likely give you a pointer to which area of code is eating up your memory. > > > > > OK. I will monitor the /proc/slabinfo file. > > >Based on the sysrq-m info you posted it looks like due to fragmentation the > >largest chunk of memory you can allocate is 2MB (perhaps less depending on > >address space availability). If you can build a test kernel to do a > >show_state > >rather than a show_mem at the beginning of oom_kil, then you should be > >able to > >tell who is trying to do an allocation that leads to kswapd calling > >out_of_memory. > > > > > Neil, I'm trying to recompile the kernel source 2.4.21-32.0.1 and get > some error messages: > > In file included from > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/prefetch.h:13, > from > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/list.h:6, > from > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:12, > from 3w-xxxx.c:172: > /usr/src/linux-2.4.21-32.0.1.EL/include/asm/processor.h:61: warning: > parameter names (without types) in function declaration > /usr/src/linux-2.4.21-32.0.1.EL/include/asm/processor.h:61: field > `loops_per_jiffy_R_ver_str' declared as a function > /usr/src/linux-2.4.21-32.0.1.EL/include/asm/processor.h:84: invalid > suffix on integer constant > /usr/src/linux-2.4.21-32.0.1.EL/include/asm/processor.h:84: syntax error > before numeric constant > /usr/src/linux-2.4.21-32.0.1.EL/include/asm/processor.h:84: warning: > function declaration isn't a prototype > /usr/src/linux-2.4.21-32.0.1.EL/include/asm/processor.h:269: invalid > suffix on integer constant > /usr/src/linux-2.4.21-32.0.1.EL/include/asm/processor.h:269: syntax > error before numeric constant > /usr/src/linux-2.4.21-32.0.1.EL/include/asm/processor.h:269: warning: > function declaration isn't a prototype > /usr/src/linux-2.4.21-32.0.1.EL/include/asm/processor.h:273: warning: > parameter names (without types) in function declaration > In file included from 3w-xxxx.c:172: > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:190: invalid > suffix on integer constant > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:190: syntax error > before numeric constant > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:190: > `inter_module_register_R_ver_str' declared as function returning a function > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:190: warning: > function declaration isn't a prototype > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:191: invalid > suffix on integer constant > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:191: syntax error > before numeric constant > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:191: > `inter_module_unregister_R_ver_str' declared as function returning a > function > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:191: warning: > function declaration isn't a prototype > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:192: > `inter_module_get_R_ver_str' declared as function returning a function > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:192: warning: > parameter names (without types) in function declaration > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:193: > `inter_module_get_request_R_ver_str' declared as function returning a > function > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:193: warning: > parameter names (without types) in function declaration > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:194: invalid > suffix on integer constant > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:194: syntax error > before numeric constant > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:194: > `inter_module_put_R_ver_str' declared as function returning a function > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:194: warning: > function declaration isn't a prototype > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:203: > `try_inc_mod_count_R_ver_str' declared as function returning a function > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h:203: warning: > parameter names (without types) in function declaration > make[3]: *** [3w-xxxx_10200033.o] Error 1 > make[3]: Leaving directory > `/usr/src/linux-2.4.21-32.0.1.EL/drivers/addon/3w-xxxx_10200033' > make[2]: *** [_modsubdir_3w-xxxx_10200033] Error 2 > make[2]: Leaving directory `/usr/src/linux-2.4.21-32.0.1.EL/drivers/addon' > make[1]: *** [_modsubdir_addon] Error 2 > make[1]: Leaving directory `/usr/src/linux-2.4.21-32.0.1.EL/drivers' > make: *** [_mod_drivers] Error 2 > > Is there any relationship between the sysrq-m changes to do show_state() > rather than a show_mem() and the compiling erros? > > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/prefetch.h, line 13: > #include <asm/processor.h> > > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/list.h ,line 6: > #include <linux/prefetch.h> > > /usr/src/linux-2.4.21-32.0.1.EL/include/linux/module.h, line 12: > #include <linux/list.h> > > 3w-xxxx.c, line 172: > #include <linux/module.h> > > Any ideia about the kernel compiling erros? > > (If I try to recompile a kernel.org kernel, it is compiled fine). > > Thanks again. > > Márcio. > I honestly don't know. I expect you haven't patched something correctly, have you built the source tree with rpmbuild, or are you just extracting the tar file from the rpm? Neil
-- /*************************************************** *Neil Horman *Software Engineer *Red Hat, Inc. *nhorman@redhat.com *gpg keyid: 1024D / 0x92A74FA1 *http://pgp.mit.edu ***************************************************/ - 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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