Zou Nan hai wrote: > On Tue, 2006-10-17 at 09:51, Jay Lan wrote: >> Jay Lan wrote: >> <snip> >>> Well, i built 2.6.18 kernel and 2.6.18rc5 kernels. >>> I also built 2 kexec-tools based on kdump10 patch. I have been >>> associating the kexec-tools tree that i built at the rc5 time with >>> the rc5 kernel and the newer kexec-tools tree with the 2.6.18 >>> kernel. >>> >>> I just ran a few tests with different combination of kexec-tools >>> and kernels. Well, it showed that the rc5 version of kexec-tools >>> worked correctly with both kernels, but the newer version of >>> kexec-tools displayed the system restart problem with both kernels. >>> >>> So, it was the kexec-tools that caused the problem. Not the kernel >>> side. I will diff the patches i applied to both trees... >> Nan-hai, >> >> OK, the '-noio' option patch you posted on 9/20 was the cause of >> my system restart. >> http://lists.osdl.org/pipermail/fastboot/2006-September/004062.html >> >> If instead, if i make every inline functions in >> purgatory/arch/ia64/io.h null functions, it would then work. >> I will attach the patch i used (based on your suggestion) here for >> your reference. It was in rough form. >> >> >> Thanks, >> - jay >> > Hi, did you run kexec -p with --noio option? Yes, i did. Without specifying the option the crashkernel would not even have started. Here is the command line i used: # kexec -p /boot/efi/efi/redhat/vmlinuz-2.6.18-kdump --noio --initrd=/boot/efi/efi/redhat/initrd-2.6.18-kdump --append="root=/dev/sdb6 irqpoll maxcpus=1 ro console=ttySG0" Thanks, - jay > > Zou Nan hai >>> Later, >>> - jay >>> >>> >>> >>>> Zou Nan hai >>>>> Thanks, >>>>> - jay >>>> - >>>> To unsubscribe from this list: send the line "unsubscribe linux-ia64" in >>>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> - >>> To unsubscribe from this list: send the line "unsubscribe linux-ia64" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> ______________________________________________________________________ >> >> Index: kexec-tools-1.101/purgatory/arch/ia64/io.h >> =================================================================== >> --- kexec-tools-1.101.orig/purgatory/arch/ia64/io.h 2006-10-16 18:19:07.346416494 -0700 >> +++ kexec-tools-1.101/purgatory/arch/ia64/io.h 2006-10-16 18:47:14.742913628 -0700 >> @@ -4,6 +4,7 @@ >> #define MF() asm volatile ("mf.a" ::: "memory") >> #define IO_SPACE_ENCODING(p) ((((p) >> 2) << 12) | (p & 0xfff)) >> >> +#ifdef DO_VGA_IO >> static inline void *io_addr (unsigned long port) >> { >> unsigned long offset; >> @@ -91,4 +92,46 @@ static inline void writel(unsigned int b >> { >> *(volatile unsigned int *) addr = b; >> } >> +#else >> +static inline void *io_addr (unsigned long port) >> +{ return (void*)0; } >> + >> +static inline unsigned int inb (unsigned long port) >> +{ return 0; } >> + >> +static inline unsigned int inw (unsigned long port) >> +{ return 0; } >> + >> +static inline unsigned int ia64_inl (unsigned long port) >> +{ return 0; } >> + >> +static inline void outb (unsigned char val, unsigned long port) >> +{ return; } >> + >> +static inline void outw (unsigned short val, unsigned long port) >> +{ return; } >> + >> +static inline void outl (unsigned int val, unsigned long port) >> +{ return; } >> + >> + >> +static inline unsigned char readb(const volatile void *addr) >> +{ return 0; } >> + >> +static inline unsigned short readw(const volatile void *addr) >> +{ return 0; } >> + >> +static inline unsigned int readl(const volatile void *addr) >> +{ return 0; } >> + >> +static inline void writeb(unsigned char b, volatile void *addr) >> +{ return; } >> + >> +static inline void writew(unsigned short b, volatile void *addr) >> +{ return; } >> + >> +static inline void writel(unsigned int b, volatile void *addr) >> +{ return; } >> + >> +#endif >> #endif - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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