我正在使用我们的嵌入式系统，当我第二次安装USB存储器时，我得到了'schedulling while atomic'错误。大约20秒后，安装成功，并显示如下所示的消息。
我不是那么专家，我不知道在哪里看。我应该在哪里看？ （linux3.3）
第一次安装工作正常。我使用umount / usb来分离记忆棒。
# mount -t vfat /dev/sda0 /usb
BUG: scheduling while atomic: scsi_eh_0/328/0x00000003
Modules linked in:
[c0384d9c : wait_for_common+0xcc/0x1a0 ] [c02b0474 : command_abort+0x94/0xe0 ] [c0273a8c : scsi_error_handler+0x3e4/0x524 ] [c00462e8 : kt
ckim: or mask
ckim: connected
RESUME int
usb 1-1: reset full-speed USB device number 2 using aldebaran-hcd
ckim: or mask
ckim: connected
RESUME int
BUG: scheduling while atomic: scsi_eh_0/328/0x00000003
Modules linked in:
[c0384d9c : wait_for_common+0xcc/0x1a0 ] [c02722a8 : scsi_send_eh_cmnd+0x64/0x280 ] [c0272574 : scsi_eh_tur+0x18/0x94 ] [c0272654 : scsi_e
BUG: scheduling while atomic: scsi_eh_0/328/0x00000003
Modules linked in:
[c00462e8 : kthread+0x78/0x8c ] [c0011540 : kernel_thread+0x34/0x50 ] [c0046530 : kthreadd+0xc8/0x148 ]
昨天通过修复中断服务程序解决了这个问题。当我插入记忆棒时，端口状态未正确报告为已断开连接。通过修复它，这个问题就消失了。当我第二次给出mount命令的时候，当设备不存在时，它仍然被识别为已连接，这就引起了长期无响应的情况。
ADD： 4个月后我虽然问题得到解决，但几天前，使用USB键盘，我发现当我断开USB键盘并重新连接时会出现同样的问题。信息如下，万一有人可以给我一个问题是什么的线索..
usb 1-1: USB disconnect, device number 2
BUG: scheduling while atomic: khubd/12/0x00000002
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c027fc2c : devtmpfs_delete_node+0xa0/0xc8 ] [c027920c : device_del+0x160/0x188 ]
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c027fc2c : devtmpfs_delete_node+0xa0/0xc8 ] [c027920c : device_del+0x160/0x188 ]
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c027fc2c : devtmpfs_delete_node+0xa0/0xc8 ] [c027920c : device_del+0x160/0x188 ]
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c027fc2c : devtmpfs_delete_node+0xa0/0xc8 ] [c027920c : device_del+0x160/0x188 ]
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b7f0c : hub_thread+0xc94/0x11d8 ] [c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_th
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b7f0c : hub_thread+0xc94/0x11d8 ] [c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_th
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b7f0c : hub_thread+0xc94/0x11d8 ] [c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_th
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b7f0c : hub_thread+0xc94/0x11d8 ] [c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_th
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_thread+0x34/0x50 ] [c0046dfc : kthreadd+0xc8/0x148 ]
INSRMV int
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b7f0c : hub_thread+0xc94/0x11d8 ] [c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_th
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b7f0c : hub_thread+0xc94/0x11d8 ] [c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_th
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b7f0c : hub_thread+0xc94/0x11d8 ] [c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_th
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b7f0c : hub_thread+0xc94/0x11d8 ] [c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_th
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b4758 : hub_port_reset+0x134/0x458 ] [c02b5468 : hub_port_init+0x50/0x7a0 ] [c02b76f0 :
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b49c4 : hub_port_reset+0x3a0/0x458 ] [c02b5468 : hub_port_init+0x50/0x7a0 ] [c02b76f0 :
usb 1-1: new low-speed USB device number 3 using aldebaran-hcd
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b4758 : hub_port_reset+0x134/0x458 ] [c02b581c : hub_port_init+0x404/0x7a0 ] [c02b76f0
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b49c4 : hub_port_reset+0x3a0/0x458 ] [c02b581c : hub_port_init+0x404/0x7a0 ] [c02b76f0
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0037b78 : msleep+0x18/0x34 ] [c02b560c : hub_port_init+0x1f4/0x7a0 ] [c02b76f0 : hub_thread+0x478/0x11d8 ] [c0046bb4 : k
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
usb 1-1: New USB device found, idVendor=045e, idProduct=0780
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1: Product: Comfort Curve Keyboard 3000
usb 1-1: Manufacturer: Microsoft
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c027fb40 : devtmpfs_create_node+0xd0/0x11c ] [c0279998 : device_add+0x230/0x620
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
input: Microsoft Comfort Curve Keyboard 3000 as /devices/platform/aldebaran-hcd/usb1/1-1/1-1:1.0/input/input2
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c027fb40 : devtmpfs_create_node+0xd0/0x11c ] [c0279998 : device_add+0x230/0x620
generic-usb 0003:045E:0780.0003: input: USB HID v1.11 Keyboard [Microsoft Comfort Curve Keyboard 3000] on usb-aldebaran-hc0
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c02bcc78 : usb_start_wait_urb+0x98/0xcc ] [c02bceb4 : usb_control_msg+0xd8/0xfc
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c02fcf20 : usbhid_wait_io+0xa8/0x118 ] [c02fcff8 : usbhid_init_reports+0x68/0x110 ] [c02fd5c8 : usbhid_start+0x528/0x648
input: Microsoft Comfort Curve Keyboard 3000 as /devices/platform/aldebaran-hcd/usb1/1-1/1-1:1.1/input/input3
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c027fb40 : devtmpfs_create_node+0xd0/0x11c ] [c0279998 : device_add+0x230/0x620
generic-usb 0003:045E:0780.0004: input: USB HID v1.11 Device [Microsoft Comfort Curve Keyboard 3000] on usb-aldebaran-hcd-1
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c03b5824 : wait_for_common+0xcc/0x1a0 ] [c027fb40 : devtmpfs_create_node+0xd0/0x11c ] [c0279998 : device_add+0x230/0x620
BUG: scheduling while atomic: khubd/12/0x00000003
Modules linked in:
[c0046bb4 : kthread+0x78/0x8c ] [c00115b8 : kernel_thread+0x34/0x50 ] [c0046dfc : kthreadd+0xc8/0x148 ]
答案 0 :(得分：1)
似乎内核中存在问题。这意味着内核的某些部分尝试在内核处于原子上下文时执行一些非原子过程。例如，内核试图进入睡眠状态。
尝试升级内核。