Date: Thu, 02 Mar 2000 17:33:55 +1000 From: Stephen McKay <syssgm@nymph.detir.qld.gov.au> To: freebsd-current@freebsd.org Cc: syssgm@nymph.detir.qld.gov.au Subject: /dev/random limited to irq < 16 Message-ID: <200003020733.RAA31132@nymph.detir.qld.gov.au>
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I found out much to my surprise that our SMP box is not collecting ANY
entropy for /dev/random. All the interesting IRQs are over 16, and
nobody uses the console.
From sys/i386/i386/mem.c 1.79:
/*
* XXX the data is 16-bit due to a historical botch, so we use
* magic 16's instead of ICU_LEN and can't support 24 interrupts
* under SMP.
*/
Why don't we just flip this from a 16 bit to a 32 bit parameter in time
for 4.0-RELEASE? Should just require a quick fiddle in mem.c and in
rndcontrol.
Stephen.
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