Bob Cochran <p...@mindchasers.com> wrote on 2012/05/29 20:13:21: > > On 05/29/2012 08:00 AM, Joakim Tjernlund wrote: > > > > I cannot make simple break points using BDI2000 work in 3.3, abatro > > suggests that it > > depends on MSR[DE] is cleared by the kernel. With the emulator I can see > > that > > MSR[DE] is off quite often by just stopping at random times and looking at > > MSR so > > it seems like the kernel is turning MSR[DE] off most of the time. > > Anyone else having success debugging 3.3 with BDI2000? > > > > This is on a P2010(E500/BOOKE) CPU. > > > > _______________________________________________ > > Linuxppc-dev mailing list > > Linuxppc-dev@lists.ozlabs.org > > https://lists.ozlabs.org/listinfo/linuxppc-dev > > > > I debug using Freescale CodeWarrior and a USB tap, which also rely on > MSR[DE] being set. I develop from the mainline & have a patch set that > I just recently re-tweaked to support kernel debugging. > > If you want, I'll send you my set of patches for the kernel. They might > be useful (not sure since I don't use BDI).
Thanks, that could be useful, however I just figured something out. Changing diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h index 500fe1d..0cb259b 100644 --- a/arch/powerpc/include/asm/reg_booke.h +++ b/arch/powerpc/include/asm/reg_booke.h @@ -37,7 +37,7 @@ #define MSR_KERNEL (MSR_ME|MSR_RI|MSR_IR|MSR_DR|MSR_CE) #define MSR_USER (MSR_KERNEL|MSR_PR|MSR_EE) #else -#define MSR_KERNEL (MSR_ME|MSR_RI|MSR_CE) +#define MSR_KERNEL (MSR_ME|MSR_RI|MSR_CE|MSR_DE) #define MSR_USER (MSR_KERNEL|MSR_PR|MSR_EE) #endif Made it work(possible one should change MSR_USER too?) Question now is why MSR_DE is not on by default? Especially since BDI2000 is supported by the kernel(CONFIG_BDI_SWITCH=y) is on in my kernel? Jocke _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev