Messages in this thread | | | From | David Laight <> | Subject | RE: Question about output of kmalloc() | Date | Tue, 14 Jan 2020 10:36:55 +0000 |
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From: xuesong Chen > Sent: 14 January 2020 07:21 > Below code snippet in the .ko: > > unsigned long *p = (unsigned long *)kmalloc(sizeof(*p), GFP_KERNEL); > printk("Addr of p = 0x%p\n", p); > > The output is: > Addr of p = 0x0000000018606ce7 > > In my mind, during the early day, the p should be 0xfffff...., can > anybody give some tips why the output looks like it's a physical > address?
The printed value is hashed to avoid leaking info.
David
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