Add a test for EC segfault with partial overwrite in 1234 -> 5030 rebalance scenario
parent
27e9f244ec
commit
c53357ac45
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@ -30,6 +30,7 @@ void test16();
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void test_recover_22_d2();
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void test_ec43_error_bruteforce();
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void test_recover_53_d5();
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void test_recover_22();
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int main(int narg, char *args[])
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{
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@ -70,6 +71,8 @@ int main(int narg, char *args[])
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test_ec43_error_bruteforce();
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// Test 19
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test_recover_53_d5();
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// Test 20
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test_recover_22();
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// End
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printf("all ok\n");
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return 0;
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@ -1244,3 +1247,99 @@ void test_recover_53_d5()
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// Done
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use_ec(8, 5, false);
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}
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void test_recover_22()
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{
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const int bmp = 128*1024 / 4096 / 8;
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use_ec(4, 2, true);
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osd_num_t osd_set[4] = { 1, 2, 3, 4 };
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osd_num_t write_osd_set[4] = { 5, 0, 3, 0 };
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osd_rmw_stripe_t stripes[4] = {};
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unsigned bitmaps[4] = { 0 };
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// split
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void *write_buf = (uint8_t*)malloc_or_die(4096);
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set_pattern(write_buf, 4096, PATTERN0);
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split_stripes(2, 128*1024, 120*1024, 4096, stripes);
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assert(stripes[0].req_start == 120*1024 && stripes[0].req_end == 124*1024);
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assert(stripes[1].req_start == 0 && stripes[1].req_end == 0);
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assert(stripes[2].req_start == 0 && stripes[2].req_end == 0);
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assert(stripes[3].req_start == 0 && stripes[3].req_end == 0);
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// calc_rmw
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void *rmw_buf = calc_rmw(write_buf, stripes, osd_set, 4, 2, 2, write_osd_set, 128*1024, bmp);
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for (int i = 0; i < 4; i++)
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stripes[i].bmp_buf = bitmaps+i;
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assert(rmw_buf);
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assert(stripes[0].read_start == 0 && stripes[0].read_end == 128*1024);
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assert(stripes[1].read_start == 120*1024 && stripes[1].read_end == 124*1024);
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assert(stripes[2].read_start == 0 && stripes[2].read_end == 0);
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assert(stripes[3].read_start == 0 && stripes[3].read_end == 0);
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assert(stripes[0].write_start == 120*1024 && stripes[0].write_end == 124*1024);
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assert(stripes[1].write_start == 0 && stripes[1].write_end == 0);
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assert(stripes[2].write_start == 120*1024 && stripes[2].write_end == 124*1024);
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assert(stripes[3].write_start == 0 && stripes[3].write_end == 0);
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assert(stripes[0].read_buf == (uint8_t*)rmw_buf+4*1024);
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assert(stripes[1].read_buf == (uint8_t*)rmw_buf+132*1024);
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assert(stripes[2].read_buf == NULL);
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assert(stripes[3].read_buf == NULL);
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assert(stripes[0].write_buf == write_buf);
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assert(stripes[1].write_buf == NULL);
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assert(stripes[2].write_buf == (uint8_t*)rmw_buf);
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assert(stripes[3].write_buf == NULL);
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// encode
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set_pattern(stripes[0].read_buf, 128*1024, PATTERN1);
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set_pattern(stripes[1].read_buf, 4*1024, PATTERN2);
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memset(stripes[0].bmp_buf, 0xff, bmp);
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memset(stripes[1].bmp_buf, 0xff, bmp);
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calc_rmw_parity_ec(stripes, 4, 2, osd_set, write_osd_set, 128*1024, bmp);
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assert(*(uint32_t*)stripes[2].bmp_buf == 0);
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assert(stripes[0].write_start == 0 && stripes[0].write_end == 128*1024);
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assert(stripes[1].write_start == 0 && stripes[1].write_end == 0);
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assert(stripes[2].write_start == 120*1024 && stripes[2].write_end == 124*1024);
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assert(stripes[3].write_start == 0 && stripes[3].write_end == 0);
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assert(stripes[0].write_buf == stripes[0].read_buf);
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assert(stripes[1].write_buf == NULL);
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assert(stripes[2].write_buf == (uint8_t*)rmw_buf);
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assert(stripes[3].write_buf == NULL);
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check_pattern(stripes[2].write_buf, 4*1024, PATTERN0^PATTERN2);
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// decode and verify
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memset(stripes, 0, sizeof(stripes));
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split_stripes(2, 128*1024, 0, 256*1024, stripes);
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assert(stripes[0].req_start == 0 && stripes[0].req_end == 128*1024);
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assert(stripes[1].req_start == 0 && stripes[1].req_end == 128*1024);
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assert(stripes[2].req_start == 0 && stripes[2].req_end == 0);
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assert(stripes[3].req_start == 0 && stripes[3].req_end == 0);
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for (int role = 0; role < 4; role++)
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{
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stripes[role].read_start = stripes[role].req_start;
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stripes[role].read_end = stripes[role].req_end;
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}
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assert(extend_missing_stripes(stripes, write_osd_set, 2, 4) == 0);
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assert(stripes[0].read_start == 0 && stripes[0].read_end == 128*1024);
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assert(stripes[1].read_start == 0 && stripes[1].read_end == 128*1024);
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assert(stripes[2].read_start == 0 && stripes[2].read_end == 128*1024);
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assert(stripes[3].read_start == 0 && stripes[3].read_end == 0);
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void *read_buf = alloc_read_buffer(stripes, 4, 0);
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for (int i = 0; i < 4; i++)
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stripes[i].bmp_buf = bitmaps+i;
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assert(read_buf);
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assert(stripes[0].read_buf == read_buf);
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assert(stripes[1].read_buf == (uint8_t*)read_buf+128*1024);
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assert(stripes[2].read_buf == (uint8_t*)read_buf+2*128*1024);
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set_pattern(stripes[0].read_buf, 128*1024, PATTERN1);
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set_pattern(stripes[0].read_buf+120*1024, 4*1024, PATTERN0);
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set_pattern(stripes[2].read_buf, 128*1024, PATTERN1^PATTERN2);
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set_pattern(stripes[2].read_buf+120*1024, 4*1024, PATTERN0^PATTERN2);
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memset(stripes[0].bmp_buf, 0xff, bmp);
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memset(stripes[2].bmp_buf, 0, bmp);
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bitmaps[1] = 0;
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bitmaps[3] = 0;
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reconstruct_stripes_ec(stripes, 4, 2, bmp);
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assert(bitmaps[0] == 0xFFFFFFFF);
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assert(*(uint32_t*)stripes[1].bmp_buf == 0xFFFFFFFF);
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check_pattern(stripes[1].read_buf, 128*1024, PATTERN2);
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free(read_buf);
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// Done
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free(rmw_buf);
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free(write_buf);
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use_ec(4, 2, false);
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}
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