Linux shutdown/reboot process

[Asutosh Das]

Hi List
I have a query about the linux shutdown or reboot process.

Please can you let me know if the below sequence is correct:

When reboot command is given on the shell:

1. all user-space process is frozen (by sending some signal ?? )
2. all file-systems are remounted as read-only - (sysrq handler does this ?? )
3. all drivers, whose shutdown handlers have been defined, are called
in the reverse order in which these drivers were initialized.

I am not sure what happens after this.

TIA.



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Thanks & Regards
~/asd