On 4/14/24 15:48, M Bazz wrote:
I noticed that cpu_mmu_index() would have returned MMU_USER_IDX
if the supervisor bit hadn't happened to be set (not sure if this
execution path can occur for lda).
No, it cannot.
Note that this check is gone in your patch.
Correct. Since 'lda' has already c
Hi Henry,
I want to thank you for every chance I get to learn from you. Each
email excites me.
On Sun, Apr 14, 2024 at 1:20 PM Richard Henderson
wrote:
> The "current" permission, as computed by
>
> > -case ASI_KERNELTXT: /* Supervisor code access */
> > -oi = make_memop_idx(memop, c
On 4/13/24 18:54, M Bazz wrote:
This thought just came to me. `lda` is a privileged instruction. It has to
run in supervisor mode. So, I'm struggling to understand how the
kernel permission was wrong. Isn't that the right permission for this
instruction?
The "current" permission, as computed b
Hi Richard,
On Thu, Apr 11, 2024 at 10:16 PM Richard Henderson
wrote:
>
> On 4/11/24 18:15, M Bazz wrote:
> > diff --git a/target/sparc/ldst_helper.c b/target/sparc/ldst_helper.c
> > index e581bb42ac..4f87e44a93 100644
> > --- a/target/sparc/ldst_helper.c
> > +++ b/target/sparc/ldst_helper.c
> >
On 4/11/24 18:15, M Bazz wrote:
On Thu, Apr 11, 2024, 5:55 PM Richard Henderson
wrote:
On 4/11/24 14:29, M Bazz wrote:
fixes a longstanding bug which causes a "Nonparity Synchronous Error"
kernel panic while using a debugger on Solaris / SunOS systems. The panic
would occur on the first attem
On Thu, Apr 11, 2024, 5:55 PM Richard Henderson
wrote:
>
> On 4/11/24 14:29, M Bazz wrote:
> > fixes a longstanding bug which causes a "Nonparity Synchronous Error"
> > kernel panic while using a debugger on Solaris / SunOS systems. The panic
> > would occur on the first attempt to single-step the
On 4/11/24 14:29, M Bazz wrote:
fixes a longstanding bug which causes a "Nonparity Synchronous Error"
kernel panic while using a debugger on Solaris / SunOS systems. The panic
would occur on the first attempt to single-step the process.
The problem stems from an lda instruction on ASI_USERTXT (8
fixes a longstanding bug which causes a "Nonparity Synchronous Error"
kernel panic while using a debugger on Solaris / SunOS systems. The panic
would occur on the first attempt to single-step the process.
The problem stems from an lda instruction on ASI_USERTXT (8). This asi
was not being resolved
