Date: Sun, 21 Jul 2019 03:48:03 +0000 (UTC) From: Laurie Jennings <laurie_jennings_1977@yahoo.com> To: "freebsd-current@freebsd.org" <freebsd-current@freebsd.org> Subject: mmap port from 9 not working Message-ID: <446145008.4396329.1563680883838@mail.yahoo.com> References: <446145008.4396329.1563680883838.ref@mail.yahoo.com>
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I have some custom stuff I'm porting from Freebsd 9.x using mmap. I get a p=
ointer from the kernel via an ioctl and I map it into a shared buffer.
char *kptr; =C2=A0 // mem ptr from kernel
fd=3Dopen("/dev/kmem",O_RDWR);memp=3Dmmap(0,size,PROT_READ|PROT_WRITE,MAP_S=
HARED,fd,(off_t) ptr);
This worked perfectly in 9; memp I had a shared block of memory between the=
kernel and user space.
In 11.3 this returns an errno 22, which is pretty murky. I did notice that =
off_t doesnt yield an actual offset; I've tried putting in the correct valu=
e manuallybut it just fails and fails.I've tried read only also.=C2=A0
Please Help!
Laurie
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Message-ID: <CAG+4ykmb68AiiM9HLdtD-KxP2YktrD-Y9VJ_ADHboEa2qbf9Fw@mail.gmail.com>
Subject: acpi issues on FreeBSD-current_r350103 on Thinkpad A485
To: contact@evilham.com
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Hi,
Thank you for the instructions. I have a question related to
post-installation. My system doesn't boot after installing and rebooting
the system. It just doesn't find the partition on the drive. I get a blank
screen when selecting from the boot media list. What partitioning scheme
did you use for your installation? Or is this problem addressable with step
#2 in your instructions? Putting in the boot/loader.conf ->
set.hw.pci.mcfg=0?
Thank you very much,
Cristian
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