fault.c (db1177ee6206f957f579fdbfebb2c6a64e82c694) fault.c (33692f27597fcab536d7cbbcc8f52905133e4aa7)
1/*
2 * S390 version
3 * Copyright IBM Corp. 1999
4 * Author(s): Hartmut Penner (hp@de.ibm.com)
5 * Ulrich Weigand (uweigand@de.ibm.com)
6 *
7 * Derived from "arch/i386/mm/fault.c"
8 * Copyright (C) 1995 Linus Torvalds

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166 if (*table & (_REGION_ENTRY_INVALID | _REGION3_ENTRY_LARGE))
167 goto out;
168 table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
169 /* fallthrough */
170 case _ASCE_TYPE_SEGMENT:
171 table = table + ((address >> 20) & 0x7ff);
172 if (bad_address(table))
173 goto bad;
1/*
2 * S390 version
3 * Copyright IBM Corp. 1999
4 * Author(s): Hartmut Penner (hp@de.ibm.com)
5 * Ulrich Weigand (uweigand@de.ibm.com)
6 *
7 * Derived from "arch/i386/mm/fault.c"
8 * Copyright (C) 1995 Linus Torvalds

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166 if (*table & (_REGION_ENTRY_INVALID | _REGION3_ENTRY_LARGE))
167 goto out;
168 table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
169 /* fallthrough */
170 case _ASCE_TYPE_SEGMENT:
171 table = table + ((address >> 20) & 0x7ff);
172 if (bad_address(table))
173 goto bad;
174 pr_cont("S:%016lx ", *table);
174 pr_cont(KERN_CONT "S:%016lx ", *table);
175 if (*table & (_SEGMENT_ENTRY_INVALID | _SEGMENT_ENTRY_LARGE))
176 goto out;
177 table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN);
178 }
179 table = table + ((address >> 12) & 0xff);
180 if (bad_address(table))
181 goto bad;
182 pr_cont("P:%016lx ", *table);

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256static inline void report_user_fault(struct pt_regs *regs, long signr)
257{
258 if ((task_pid_nr(current) > 1) && !show_unhandled_signals)
259 return;
260 if (!unhandled_signal(current, signr))
261 return;
262 if (!printk_ratelimit())
263 return;
175 if (*table & (_SEGMENT_ENTRY_INVALID | _SEGMENT_ENTRY_LARGE))
176 goto out;
177 table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN);
178 }
179 table = table + ((address >> 12) & 0xff);
180 if (bad_address(table))
181 goto bad;
182 pr_cont("P:%016lx ", *table);

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256static inline void report_user_fault(struct pt_regs *regs, long signr)
257{
258 if ((task_pid_nr(current) > 1) && !show_unhandled_signals)
259 return;
260 if (!unhandled_signal(current, signr))
261 return;
262 if (!printk_ratelimit())
263 return;
264 printk(KERN_ALERT "User process fault: interruption code %04x ilc:%d ",
264 printk(KERN_ALERT "User process fault: interruption code %04x ilc:%d",
265 regs->int_code & 0xffff, regs->int_code >> 17);
266 print_vma_addr(KERN_CONT "in ", regs->psw.addr & PSW_ADDR_INSN);
267 printk(KERN_CONT "\n");
268 printk(KERN_ALERT "failing address: %016lx TEID: %016lx\n",
269 regs->int_parm_long & __FAIL_ADDR_MASK, regs->int_parm_long);
270 dump_fault_info(regs);
271 show_regs(regs);
272}

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369 do_no_context(regs);
370 break;
371 default: /* fault & VM_FAULT_ERROR */
372 if (fault & VM_FAULT_OOM) {
373 if (!user_mode(regs))
374 do_no_context(regs);
375 else
376 pagefault_out_of_memory();
265 regs->int_code & 0xffff, regs->int_code >> 17);
266 print_vma_addr(KERN_CONT "in ", regs->psw.addr & PSW_ADDR_INSN);
267 printk(KERN_CONT "\n");
268 printk(KERN_ALERT "failing address: %016lx TEID: %016lx\n",
269 regs->int_parm_long & __FAIL_ADDR_MASK, regs->int_parm_long);
270 dump_fault_info(regs);
271 show_regs(regs);
272}

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369 do_no_context(regs);
370 break;
371 default: /* fault & VM_FAULT_ERROR */
372 if (fault & VM_FAULT_OOM) {
373 if (!user_mode(regs))
374 do_no_context(regs);
375 else
376 pagefault_out_of_memory();
377 } else if (fault & VM_FAULT_SIGSEGV) {
378 /* Kernel mode? Handle exceptions or die */
379 if (!user_mode(regs))
380 do_no_context(regs);
381 else
382 do_sigsegv(regs, SEGV_MAPERR);
377 } else if (fault & VM_FAULT_SIGBUS) {
378 /* Kernel mode? Handle exceptions or die */
379 if (!user_mode(regs))
380 do_no_context(regs);
381 else
382 do_sigbus(regs);
383 } else
384 BUG();

--- 404 unchanged lines hidden --- 		383 } else if (fault & VM_FAULT_SIGBUS) {
384 /* Kernel mode? Handle exceptions or die */
385 if (!user_mode(regs))
386 do_no_context(regs);
387 else
388 do_sigbus(regs);
389 } else
390 BUG();

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