diff options
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/kernel/traps.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index fd4858e2dd63..75b8340b254b 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -468,15 +468,26 @@ static inline void access_error040(struct frame *fp) * (if do_page_fault didn't fix the mapping, * the writeback won't do good) */ +disable_wb: #ifdef DEBUG printk(".. disabling wb2\n"); #endif if (fp->un.fmt7.wb2a == fp->un.fmt7.faddr) fp->un.fmt7.wb2s &= ~WBV_040; + if (fp->un.fmt7.wb3a == fp->un.fmt7.faddr) + fp->un.fmt7.wb3s &= ~WBV_040; } - } else if (send_fault_sig(&fp->ptregs) > 0) { - printk("68040 access error, ssw=%x\n", ssw); - trap_c(fp); + } else { + /* In case of a bus error we either kill the process or expect + * the kernel to catch the fault, which then is also responsible + * for cleaning up the mess. + */ + current->thread.signo = SIGBUS; + current->thread.faddr = fp->un.fmt7.faddr; + if (send_fault_sig(&fp->ptregs) >= 0) + printk("68040 bus error (ssw=%x, faddr=%lx)\n", ssw, + fp->un.fmt7.faddr); + goto disable_wb; } do_040writebacks(fp); |