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Merge branch 'bugfix/nvs_power_off_recovery' into 'master'

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nvs: Fix recovery after power-off during erase operation

See merge request idf/esp-idf!2238
This commit is contained in:
Ivan Grokhotkov 2018-04-18 11:00:56 +08:00
commit 27a5096d62
2 changed files with 35 additions and 0 deletions
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10
components/nvs_flash/src/nvs_page.cpp
View File

@ -590,6 +590,16 @@ esp_err_t Page::mLoadEntryTable()
assert(item.span > 0); assert(item.span > 0);
size_t span = item.span; size_t span = item.span;
if (item.datatype == ItemType::BLOB || item.datatype == ItemType::SZ) {
for (size_t j = i + 1; j < i + span; ++j) {
if (mEntryTable.get(j) != EntryState::WRITTEN) {
eraseEntryAndSpan(i);
break;
}
}
}
i += span - 1; i += span - 1;
} }

25
components/nvs_flash/test_nvs_host/test_nvs.cpp
View File

@ -1402,8 +1402,33 @@ TEST_CASE("calculate used and free space", "[nvs]")
nvs_close(handle_3); nvs_close(handle_3);
} }
TEST_CASE("Recovery from power-off when the entry being erased is not on active page", "[nvs]")
{
const size_t blob_size = Page::BLOB_MAX_SIZE;
size_t read_size = blob_size;
uint8_t blob[blob_size] = {0x11};
SpiFlashEmulator emu(3);
TEST_ESP_OK( nvs_flash_init_custom(NVS_DEFAULT_PART_NAME, 0, 3) );
nvs_handle handle;
TEST_ESP_OK( nvs_open("test", NVS_READWRITE, &handle) );
emu.clearStats();
emu.failAfter(2 * Page::BLOB_MAX_SIZE/4 + 36);
TEST_ESP_OK( nvs_set_blob(handle, "1a", blob, blob_size) );
TEST_ESP_OK( nvs_set_blob(handle, "1b", blob, blob_size) );
TEST_ESP_ERR( nvs_erase_key(handle, "1a"), ESP_ERR_FLASH_OP_FAIL );
TEST_ESP_OK( nvs_flash_init_custom(NVS_DEFAULT_PART_NAME, 0, 3) );
/* Check 1a is erased fully*/
TEST_ESP_ERR( nvs_get_blob(handle, "1a", blob, &read_size), ESP_ERR_NVS_NOT_FOUND);
/* Check 2b is still accessible*/
TEST_ESP_OK( nvs_get_blob(handle, "1b", blob, &read_size));
nvs_close(handle);
}
/* Add new tests above */ /* Add new tests above */
/* This test has to be the final one */ /* This test has to be the final one */