From: acevest <zhaoyanbai@126.com>
Date: Sat, 11 May 2024 11:07:24 +0000 (+0800)
Subject: 修复disk_request_t.bb字段未初始化的问题
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/zlib_tech.html?a=commitdiff_plain;h=fceec7b5bbbf745b9e9559d2b8dcc571cbe5db7a;p=kernel.git

修复disk_request_t.bb字段未初始化的问题
---

diff --git a/drivers/ata.c b/drivers/ata.c
index 8feb182..a751cd9 100644
--- a/drivers/ata.c
+++ b/drivers/ata.c
@@ -226,7 +226,7 @@ void tmp_ide_disk_read(dev_t dev, uint32_t sect_nr, uint32_t count, char *buf) {
 // mbr_ext_offset: 在MBR中的扩展分区记录里的偏移地址
 // lba_partition_table: 扩展分区的真实偏移地址
 void read_partition_table(ide_drive_t *drv, uint32_t mbr_ext_offset, uint32_t lba_partition_table, int depth) {
-    disk_request_t r;
+    // disk_request_t r;
     char *sect = kmalloc(SECT_SIZE, 0);
 
 #if 1
diff --git a/kernel/semaphore.c b/kernel/semaphore.c
index 6000451..19b08b5 100644
--- a/kernel/semaphore.c
+++ b/kernel/semaphore.c
@@ -58,6 +58,7 @@ volatile void up(semaphore_t *s) {
         s->cnt++;
     } else {
         semaphore_waiter_t *waiter = list_first_entry(&s->wait_list, semaphore_waiter_t, list);
+        assert(waiter != 0);
         list_del(&waiter->list);
         task_t *task = waiter->task;
 
diff --git a/kernel/task_root.c b/kernel/task_root.c
index 528f3a9..c7eeead 100644
--- a/kernel/task_root.c
+++ b/kernel/task_root.c
@@ -112,6 +112,8 @@ void taskA_entry() {
         r.pos = sect_nr;
         r.count = 1;
         r.buf = disk_buf1;
+        r.bb = 0;
+
         send_disk_request(&r);
 
         // verify_hd_data(sect_nr, disk_buf1, current->name);
@@ -135,8 +137,10 @@ void taskB_entry() {
         r.pos = sect_nr;
         r.count = 1;
         r.buf = disk_buf2;
+        r.bb = 0;
+
         send_disk_request(&r);
-        // verify_hd_data(sect_nr, disk_buf2, current->name);
+        //  verify_hd_data(sect_nr, disk_buf2, current->name);
 
         for (int i = 0; i < 1; i++) {
             asm("hlt;");