Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> writes:
On '030, the relevant code is:
if (mmusr & (MMU_I | MMU_WP)) {
if (ssw & 4) {
printk("Data %s fault at %#010lx in %s (pc=%#lx)\n",
ssw & RW ? "read" : "write",
fp->un.fmtb.daddr,
space_names[ssw & DFC], fp->ptregs.pc);
goto buserr;
}
/* Don't try to do anything further if an exception was
handled. */
if (do_page_fault (&fp->ptregs, addr, errorcode) < 0)
return;
But we never get to do_page_fault(), as ssw = 5 (SUPER_DATA).
The "if (ssw & 4) { ... }" chunk was added in commit
e48d483d581278fae02a5fffeba2b1fef47be4d4 (from full-history-linux):
I guess it just reinstates the condition in the first hunk.
- if (fp->ptregs.sr & PS_S) {
- /* kernel fault must be a data fault to user space */
Andreas.
--
Andreas Schwab, schwab@xxxxxxxxxxxxxx
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
--
To unsubscribe from this list: send the line "unsubscribe linux-m68k" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
