通过serial调试kernel：target 机启动挂住：（

freegnu

通过serial调试kernel：target 机启动挂住：（

vmware :  OS ：fedora core 4
develop : kernel 2.6.11
target : kernel 2.6.14

1. 
   
2. title Fedora Core(2.6.11-1.1369_FC4)
   
3.         root (hd0,0)
   
4.         kernel /vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/VolGroup00/LogVol00
   
5.         initrd /initrd-2.6.11-1.1369_FC4.img
   
6. title Fedora Core(2.6.14)
   
7.         root (hd0,0)
   
8.         kernel /vmlinuz-2.6.14 ro root=/dev/VolGroup00/LogVol00
   
9.         initrd /initrd-2.6.14.img
   

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develop 和 target都能正常启动，serial也能正常工作(使用ttyS0)，两机能通讯

grub.conf改为后目标机启动就挂在 UncoMpressing Linux... OK,boot the kernel 不动了

1. 
   
2. title Fedora Core(2.6.11-1.1369_FC4)
   
3.         root (hd0,0)
   
4.         kernel /vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/VolGroup00/LogVol00
   
5.         initrd /initrd-2.6.11-1.1369_FC4.img
   
6. title Fedora Core(2.6.14)
   
7.         root (hd0,0)
   
8.         kernel /vmlinuz-2.6.14 ro root=/dev/VolGroup00/LogVol00 kgdbwait kgdb8250=0,115200
   
9.         initrd /initrd-2.6.14.img
   

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请问这是怎么回事？有没有人碰到过该问题？
thanks

bbsxjtu

"kgdbwait" causes KGDB to wait for a GDB connection during bootup. if you want to boot the kernel smoothly, you should remove this option.

freegnu

yes, i know
but it does not wait for gdb to connect but hang up