File: error.c

package info (click to toggle)
memtest86+ 5.01-3
  • links: PTS
  • area: main
  • in suites: buster, sid, stretch
  • size: 1,336 kB
  • ctags: 2,585
  • sloc: ansic: 17,514; asm: 1,805; makefile: 239; sh: 127
file content (627 lines) | stat: -rw-r--r-- 13,989 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
/* error.c - MemTest-86  Version 4.1
 *
 * Released under version 2 of the Gnu Public License.
 * By Chris Brady
 */
#include "stddef.h"
#include "stdint.h"
#include "test.h"
#include "config.h"
#include "cpuid.h"
#include "smp.h"
#include "dmi.h"
#include "controller.h"

extern int dmi_err_cnts[MAX_DMI_MEMDEVS];
extern int beepmode;
extern short dmi_initialized;
extern struct cpu_ident cpu_id;
extern struct barrier_s *barr;
extern int test_ticks, nticks;
extern struct tseq tseq[];
extern volatile int test;
void poll_errors();
extern int num_cpus;

static void update_err_counts(void);
static void print_err_counts(void);
static void common_err();
static int syn, chan, len=1;

/*
 * Display data error message. Don't display duplicate errors.
 */
void error(ulong *adr, ulong good, ulong bad)
{
	
	ulong xor;

	spin_lock(&barr->mutex);
	
	xor = good ^ bad;

#ifdef USB_WAR
	/* Skip any errrors that appear to be due to the BIOS using location
	 * 0x4e0 for USB keyboard support.  This often happens with Intel
   * 810, 815 and 820 chipsets.  It is possible that we will skip
	 * a real error but the odds are very low.
	 */
	if ((ulong)adr == 0x4e0 || (ulong)adr == 0x410) {
		return;
	}
#endif

	/* A sporadic bug exists in test #6, with SMP enabled, that
	 * reports false positives on < 65K-0.5MB range. I was
	 * not able to solve this. After investigations, it seems
	 * related to a BIOS issue similiar to the one solved by 
	 * USB_WAR, but for MP Table.
	 */
	/* Solved 
	if (test == 6 && (ulong)adr <= 0x07FFFF && num_cpus > 1) 
	{
	  cprint(6,78,"-"); // Debug
		return;
	}
	*/
	
	common_err(adr, good, bad, xor, 0);
	spin_unlock(&barr->mutex);
}



/*
 * Display address error message.
 * Since this is strictly an address test, trying to create BadRAM
 * patterns does not make sense.  Just report the error.
 */
void ad_err1(ulong *adr1, ulong *mask, ulong bad, ulong good)
{
	spin_lock(&barr->mutex);
	common_err(adr1, good, bad, (ulong)mask, 1);
	spin_unlock(&barr->mutex);
}

/*
 * Display address error message.
 * Since this type of address error can also report data errors go
 * ahead and generate BadRAM patterns.
 */
void ad_err2(ulong *adr, ulong bad)
{
	spin_lock(&barr->mutex);
	common_err(adr, (ulong)adr, bad, ((ulong)adr) ^ bad, 0);
	spin_unlock(&barr->mutex);
}

static void update_err_counts(void)
{
	if (beepmode){
		beep(600);
		beep(1000);
	}
	
	if (v->pass && v->ecount == 0) {
		cprint(LINE_MSG, COL_MSG,
			"                                            ");
	}
	++(v->ecount);
	tseq[test].errors++;
		
}

static void print_err_counts(void)
{
	int i;
	char *pp;

	if ((v->ecount > 4096) && (v->ecount % 256 != 0)) return;

	dprint(LINE_INFO, 72, v->ecount, 6, 0);
/*
	dprint(LINE_INFO, 56, v->ecc_ecount, 6, 0);
*/

	/* Paint the error messages on the screen red to provide a vivid */
	/* indicator that an error has occured */ 
	if ((v->printmode == PRINTMODE_ADDRESSES ||
			v->printmode == PRINTMODE_PATTERNS) &&
			v->msg_line < 24) {
		for(i=0, pp=(char *)((SCREEN_ADR+v->msg_line*160+1));
				 i<76; i++, pp+=2) {
			*pp = 0x47;
		}
	}
}

/*
 * Print an individual error
 */
void common_err( ulong *adr, ulong good, ulong bad, ulong xor, int type) 
{
	int i, j, n, x, flag=0;
	ulong page, offset;
	int patnchg;
	ulong mb;

	update_err_counts();

	switch(v->printmode) {
	case PRINTMODE_SUMMARY:
		/* Don't do anything for a parity error. */
		if (type == 3) {
			return;
		}

		/* Address error */
		if (type == 1) {
			xor = good ^ bad;
		}

		/* Ecc correctable errors */
		if (type == 2) {
			/* the bad value is the corrected flag */
			if (bad) {
				v->erri.cor_err++;
			}
			page = (ulong)adr;
			offset = good;
		} else {
			page = page_of(adr);
			offset = (ulong)adr & 0xFFF;
		}
			
		/* Calc upper and lower error addresses */
		if (v->erri.low_addr.page > page) {
			v->erri.low_addr.page = page;
			v->erri.low_addr.offset = offset;
			flag++;
		} else if (v->erri.low_addr.page == page &&
				v->erri.low_addr.offset > offset) {
			v->erri.low_addr.offset = offset;
			v->erri.high_addr.offset = offset;
			flag++;
		} else if (v->erri.high_addr.page < page) {
			v->erri.high_addr.page = page;
			flag++;
		}
		if (v->erri.high_addr.page == page &&
				v->erri.high_addr.offset < offset) {
			v->erri.high_addr.offset = offset;
			flag++;
		}

		/* Calc bits in error */
		for (i=0, n=0; i<32; i++) {
			if (xor>>i & 1) {
				n++;
			}
		}
		v->erri.tbits += n;
		if (n > v->erri.max_bits) {
			v->erri.max_bits = n;
			flag++;
		}
		if (n < v->erri.min_bits) {
			v->erri.min_bits = n;
			flag++;
		}
		if (v->erri.ebits ^ xor) {
			flag++;
		}
		v->erri.ebits |= xor;

	 	/* Calc max contig errors */
		len = 1;
		if ((ulong)adr == (ulong)v->erri.eadr+4 ||
				(ulong)adr == (ulong)v->erri.eadr-4 ) {
			len++;
		}
		if (len > v->erri.maxl) {
			v->erri.maxl = len;
			flag++;
		}
		v->erri.eadr = (ulong)adr;

		if (v->erri.hdr_flag == 0) {
			clear_scroll();
			cprint(LINE_HEADER+0, 1,  "Error Confidence Value:");
			cprint(LINE_HEADER+1, 1,  "  Lowest Error Address:");
			cprint(LINE_HEADER+2, 1,  " Highest Error Address:");
			cprint(LINE_HEADER+3, 1,  "    Bits in Error Mask:");
			cprint(LINE_HEADER+4, 1,  " Bits in Error - Total:");
			cprint(LINE_HEADER+4, 29,  "Min:    Max:    Avg:");
			cprint(LINE_HEADER+5, 1,  " Max Contiguous Errors:");
			x = 24;
			if (dmi_initialized) {
			  for ( i=0; i < MAX_DMI_MEMDEVS;){
			    n = LINE_HEADER+7;
			    for (j=0; j<4; j++) {
				if (dmi_err_cnts[i] >= 0) {
					dprint(n, x, i, 2, 0);
					cprint(n, x+2, ": 0");
				}
				i++;
				n++;
			    }
			    x += 10;
			  }
			}
			
			cprint(LINE_HEADER+0, 64,   "Test  Errors");
			v->erri.hdr_flag++;
		}
		if (flag) {
		  /* Calc bits in error */
		  for (i=0, n=0; i<32; i++) {
			if (v->erri.ebits>>i & 1) {
				n++;
			}
		  }
		  page = v->erri.low_addr.page;
		  offset = v->erri.low_addr.offset;
		  mb = page >> 8;
		  hprint(LINE_HEADER+1, 25, page);
		  hprint2(LINE_HEADER+1, 33, offset, 3);
		  cprint(LINE_HEADER+1, 36, " -      . MB");
		  dprint(LINE_HEADER+1, 39, mb, 5, 0);
		  dprint(LINE_HEADER+1, 45, ((page & 0xF)*10)/16, 1, 0);
		  page = v->erri.high_addr.page;
		  offset = v->erri.high_addr.offset;
		  mb = page >> 8;
		  hprint(LINE_HEADER+2, 25, page);
		  hprint2(LINE_HEADER+2, 33, offset, 3);
		  cprint(LINE_HEADER+2, 36, " -      . MB");
		  dprint(LINE_HEADER+2, 39, mb, 5, 0);
		  dprint(LINE_HEADER+2, 45, ((page & 0xF)*10)/16, 1, 0);
		  hprint(LINE_HEADER+3, 25, v->erri.ebits);
		  dprint(LINE_HEADER+4, 25, n, 2, 1);
		  dprint(LINE_HEADER+4, 34, v->erri.min_bits, 2, 1);
		  dprint(LINE_HEADER+4, 42, v->erri.max_bits, 2, 1);
		  dprint(LINE_HEADER+4, 50, v->erri.tbits/v->ecount, 2, 1);
		  dprint(LINE_HEADER+5, 25, v->erri.maxl, 7, 1);
		  x = 28;
		  for ( i=0; i < MAX_DMI_MEMDEVS;){
		  	n = LINE_HEADER+7;
			for (j=0; j<4; j++) {
				if (dmi_err_cnts[i] > 0) {
					dprint (n, x, dmi_err_cnts[i], 7, 1);
				}
				i++;
				n++;
			}
			x += 10;
		  }
		  			
		  for (i=0; tseq[i].msg != NULL; i++) {
			dprint(LINE_HEADER+1+i, 66, i, 2, 0);
			dprint(LINE_HEADER+1+i, 68, tseq[i].errors, 8, 0);
	  	  }
		}
		if (v->erri.cor_err) {
		  dprint(LINE_HEADER+6, 25, v->erri.cor_err, 8, 1);
		}
		break;

	case PRINTMODE_ADDRESSES:
		/* Don't display duplicate errors */
		if ((ulong)adr == (ulong)v->erri.eadr &&
				 xor == v->erri.exor) {
			return;
		}
		if (v->erri.hdr_flag == 0) {
			clear_scroll();
			cprint(LINE_HEADER, 0,
"Tst  Pass   Failing Address          Good       Bad     Err-Bits  Count CPU");
			cprint(LINE_HEADER+1, 0,
"---  ----  -----------------------  --------  --------  --------  ----- ----");
			v->erri.hdr_flag++;
		}
		/* Check for keyboard input */
		check_input();
		scroll();
	
		if ( type == 2 || type == 3) {
			page = (ulong)adr;
			offset = good;
		} else {
			page = page_of(adr);
			offset = ((unsigned long)adr) & 0xFFF;
		}
		mb = page >> 8;
		dprint(v->msg_line, 0, test+1, 3, 0);
		dprint(v->msg_line, 4, v->pass, 5, 0);
		hprint(v->msg_line, 11, page);
		hprint2(v->msg_line, 19, offset, 3);
		cprint(v->msg_line, 22, " -      . MB");
		dprint(v->msg_line, 25, mb, 5, 0);
		dprint(v->msg_line, 31, ((page & 0xF)*10)/16, 1, 0);

		if (type == 3) {
			/* ECC error */
			cprint(v->msg_line, 36, 
			  bad?"corrected           ": "uncorrected         ");
			hprint2(v->msg_line, 60, syn, 4);
			cprint(v->msg_line, 68, "ECC"); 
			dprint(v->msg_line, 74, chan, 2, 0);
		} else if (type == 2) {
			cprint(v->msg_line, 36, "Parity error detected                ");
		} else {
			hprint(v->msg_line, 36, good);
			hprint(v->msg_line, 46, bad);
			hprint(v->msg_line, 56, xor);
			dprint(v->msg_line, 66, v->ecount, 5, 0);
			dprint(v->msg_line, 74, smp_my_cpu_num(), 2,1);
			v->erri.exor = xor;
		}
		v->erri.eadr = (ulong)adr;
		print_err_counts();
		break;

	case PRINTMODE_PATTERNS:
		if (v->erri.hdr_flag == 0) {
			clear_scroll();
			v->erri.hdr_flag++;
		}
		/* Do not do badram patterns from test 0 or 5 */
		if (test == 0 || test == 5) {
			return;
		}
		/* Only do patterns for data errors */
		if ( type != 0) {
			return;
		}
		/* Process the address in the pattern administration */
		patnchg=insertaddress ((ulong) adr);
		if (patnchg) { 
			printpatn();
		}
		break;

	case PRINTMODE_NONE:
		if (v->erri.hdr_flag == 0) {
			clear_scroll();
			v->erri.hdr_flag++;
		}
		break;
	}
}

/*
 * Print an ecc error
 */
void print_ecc_err(unsigned long page, unsigned long offset, 
	int corrected, unsigned short syndrome, int channel)
{
	++(v->ecc_ecount);
	syn = syndrome;
	chan = channel;
	common_err((ulong *)page, offset, corrected, 0, 2);
}

#ifdef PARITY_MEM
/*
 * Print a parity error message
 */
void parity_err( unsigned long edi, unsigned long esi) 
{
	unsigned long addr;

	if (test == 5) {
		addr = esi;
	} else {
		addr = edi;
	}
	common_err((ulong *)addr, addr & 0xFFF, 0, 0, 3);
}
#endif

/*
 * Print the pattern array as a LILO boot option addressing BadRAM support.
 */
void printpatn (void)
{
       int idx=0;
       int x;

	/* Check for keyboard input */
	check_input();

       if (v->numpatn == 0)
               return;

       scroll();

       cprint (v->msg_line, 0, "badram=");
       x=7;

       for (idx = 0; idx < v->numpatn; idx++) {

               if (x > 80-22) {
                       scroll();
                       x=7;
               }
               cprint (v->msg_line, x, "0x");
               hprint (v->msg_line, x+2,  v->patn[idx].adr );
               cprint (v->msg_line, x+10, ",0x");
               hprint (v->msg_line, x+13, v->patn[idx].mask);
               if (idx+1 < v->numpatn)
                       cprint (v->msg_line, x+21, ",");
               x+=22;
       }
}
	
/*
 * Show progress by displaying elapsed time and update bar graphs
 */
short spin_idx[MAX_CPUS];
char spin[4] = {'|','/','-','\\'};

void do_tick(int me)
{
	int i, j, pct;
	ulong h, l, n, t;
	extern int mstr_cpu;

	if (++spin_idx[me] > 3) {
		spin_idx[me] = 0;
	}
	cplace(8, me+7, spin[spin_idx[me]]);
	
	
	/* Check for keyboard input */
	if (me == mstr_cpu) {
		check_input();
	}
	/* A barrier here holds the other CPUs until the configuration
	 * changes are done */
	s_barrier();

	/* Only the first selected CPU does the update */
	if (me !=  mstr_cpu) {
		return;
	}

	/* FIXME only print serial error messages from the tick handler */
	if (v->ecount) {
		print_err_counts();
	}
	
	nticks++;
	v->total_ticks++;

	if (test_ticks) {
		pct = 100*nticks/test_ticks;
		if (pct > 100) {
			pct = 100;
		}
	} else {
		pct = 0;
	}
	dprint(2, COL_MID+4, pct, 3, 0);
	i = (BAR_SIZE * pct) / 100;
	while (i > v->tptr) {
		if (v->tptr >= BAR_SIZE) {
			break;
		}
		cprint(2, COL_MID+9+v->tptr, "#");
		v->tptr++;
	}
	
	if (v->pass_ticks) {
		pct = 100*v->total_ticks/v->pass_ticks;
		if (pct > 100) {
			pct = 100;
		}
	} else {
		pct = 0;
        }
	dprint(1, COL_MID+4, pct, 3, 0);
	i = (BAR_SIZE * pct) / 100;
	while (i > v->pptr) {
		if (v->pptr >= BAR_SIZE) {
			break;
		}
		cprint(1, COL_MID+9+v->pptr, "#");
		v->pptr++;
	}

	if (v->ecount && v->printmode == PRINTMODE_SUMMARY) {
		/* Compute confidence score */
		pct = 0;

		/* If there are no errors within 1mb of start - end addresses */
		h = v->pmap[v->msegs - 1].end - 0x100;
		if (v->erri.low_addr.page >  0x100 &&
				 v->erri.high_addr.page < h) {
			pct += 8;
		}

		/* Errors for only some tests */
		if (v->pass) {
			for (i=0, n=0; tseq[i].msg != NULL; i++) {
				if (tseq[i].errors == 0) {
					n++;
				}
			}
			pct += n*3;
		} else {
			for (i=0, n=0; i<test; i++) {
				if (tseq[i].errors == 0) {
					n++;
				}
			}
			pct += n*2;
			
		}

		/* Only some bits in error */
		n = 0;
		if (v->erri.ebits & 0xf) n++;
		if (v->erri.ebits & 0xf0) n++;
		if (v->erri.ebits & 0xf00) n++;
		if (v->erri.ebits & 0xf000) n++;
		if (v->erri.ebits & 0xf0000) n++;
		if (v->erri.ebits & 0xf00000) n++;
		if (v->erri.ebits & 0xf000000) n++;
		if (v->erri.ebits & 0xf0000000) n++;
		pct += (8-n)*2;

		/* Adjust the score */
		pct = pct*100/22;
/*
		if (pct > 100) {
			pct = 100;
		}
*/
		dprint(LINE_HEADER+0, 25, pct, 3, 1);
	}
		

	/* We can't do the elapsed time unless the rdtsc instruction
	 * is supported
	 */
	if (cpu_id.fid.bits.rdtsc) {
		asm __volatile__(
			"rdtsc":"=a" (l),"=d" (h));
		asm __volatile__ (
			"subl %2,%0\n\t"
			"sbbl %3,%1"
			:"=a" (l), "=d" (h)
			:"g" (v->startl), "g" (v->starth),
			"0" (l), "1" (h));
		t = h * ((unsigned)0xffffffff / v->clks_msec) / 1000;
		t += (l / v->clks_msec) / 1000;
		i = t % 60;
		j = i % 10;
	
		if(j != v->each_sec)
		{	
			
			dprint(LINE_TIME, COL_TIME+9, i % 10, 1, 0);
			dprint(LINE_TIME, COL_TIME+8, i / 10, 1, 0);
			t /= 60;
			i = t % 60;
			dprint(LINE_TIME, COL_TIME+6, i % 10, 1, 0);
			dprint(LINE_TIME, COL_TIME+5, i / 10, 1, 0);
			t /= 60;
			dprint(LINE_TIME, COL_TIME, t, 4, 0);
		
			if(v->check_temp > 0 && !(v->fail_safe & 4))
				{
					coretemp();	
				}	
			v->each_sec = j;	
		}
	
	}
	


	/* Poll for ECC errors */
/*
	poll_errors();
*/
}