mmap kernel chunk into user space

2019-07-21 Thread Laurie Jennings via freebsd-net
Im wondering if there have been changes to the api since FreeBSD 9 as I can't get some code I'm porting to work. I have a block of kernel memory wired down and I want to map it to user space. Its just a big structure that has stats and other volatile info. In 9.x I was able to simply do: // kp

Re: Locking Memory Question

2015-07-30 Thread Laurie Jennings via freebsd-net
On Thu, 7/30/15, Hooman Fazaeli wrote: Subject: Re: Locking Memory Question To: "Laurie Jennings" Cc: "freebsd-net@freebsd.org" Date: Thursday, July 30, 2015, 2:35 PM On 7/30/2015 5:22 AM, Laurie Jennings v

Re: Locking Memory Question

2015-07-30 Thread Laurie Jennings via freebsd-net
On Thu, 7/30/15, John Baldwin wrote: Subject: Re: Locking Memory Question To: "K. Macy" Cc: "freebsd-net@freebsd.org" , "John-Mark Gurney" , "Laurie Jennings" Date: Thursday, July 30, 2015, 10:16 AM

Re: Locking Memory Question

2015-07-30 Thread Laurie Jennings via freebsd-net
On Thu, 7/30/15, John Baldwin wrote: Subject: Re: Locking Memory Question To: "K. Macy" Cc: "freebsd-net@freebsd.org" , "John-Mark Gurney" , "Laurie Jennings" Date: Thursday, July 30, 2015, 10:16 AM

Re: Locking Memory Question

2015-07-30 Thread Laurie Jennings via freebsd-net
On Thu, 7/30/15, John Baldwin wrote: Subject: Re: Locking Memory Question To: "K. Macy" Cc: "freebsd-net@freebsd.org" , "John-Mark Gurney" , "Laurie Jennings" Date: Thursday, July 30, 2015, 10:16 AM

Re: Locking Memory Question

2015-07-29 Thread Laurie Jennings via freebsd-net
On Wed, 7/29/15, John-Mark Gurney wrote: Subject: Re: Locking Memory Question To: "Laurie Jennings" Cc: "John Baldwin" , freebsd-net@freebsd.org Date: Wednesday, July 29, 2015, 7:25 PM Laurie Jennings via freebsd-net w

Locking Memory Question

2015-07-29 Thread Laurie Jennings via freebsd-net
I have a problem and I can't quite figure out where to look. This is what Im doing: I have an IOCTL to read a block of data, but the data is too large to return via ioctl. So to get the data, I allocate a block in a kernel module: foo = malloc(1024000,M_DEVBUF,M_WAITOK); I pass up a pointer

Locking Memory Question

2015-07-29 Thread Laurie Jennings via freebsd-net
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System Booting Kernel from Secondary Drive

2014-07-03 Thread Laurie Jennings via freebsd-net
I'm having a problem with a Supermicro system running FreeBSD 9.1. Sometimes when I upgrade the kernel in my main drive (ada0), the system boots the kernel from the 2nd drive. It only happens sometimes. ada0 is mounted. but the system is running the old kernel. Pulling the 2nd fixed the problem

Re: shm_map questions

2013-10-14 Thread Laurie Jennings
ing? I need to make this work and it's driving me crazy! Laurie On Mon, 4/22/13, John Baldwin wrote: Subject: Re: shm_map questions To: freebsd-net@freebsd.org Cc: "Laurie Jennings" Date: Monday, April 22, 2013, 8:43 AM On Sa

Does pthread_set_name_np() work?

2013-08-21 Thread Laurie Jennings
Im trying to set the names of threads so I can distinguish them in top -H, but it doesn't seem to take the thread id as valid. err=pthread_set_name_np(pthread_self(),"FOO"); returns an error of 3 thanks, Laurie ___ freebsd-net@freebsd.org mailing li

rtprio threads

2013-07-25 Thread Laurie Jennings
Im trying to get a user space pthread to monitor some kernel buffers but I can't get it to run at any sort or reliable priority. The docs on rtprio are pretty weak. I've tried to change the rtprio of the process, but it just locks up the system. I can't figure it out. what are the ways to give

Re: Is there any way to limit the amount of data in an mbuf chain submitted to a driver?

2013-05-18 Thread Laurie Jennings
t the amount of data in an mbuf chain submitted to a driver? To: "Laurie Jennings" Cc: "FreeBSD Net" Date: Saturday, May 18, 2013, 9:16 AM Version numbers result from my work internally, and sometimes they increment due to a build issue, or a bug found that needs to be correc

Re: Is there any way to limit the amount of data in an mbuf chain submitted to a driver?

2013-05-18 Thread Laurie Jennings
submitted to a driver? To: "Laurie Jennings" Cc: "FreeBSD Net" , "Adrian Chadd" , "Richard Sharpe" Date: Friday, May 17, 2013, 3:32 PM No Laurie, I ran into an issue that I needed to resolve, and then my validation engineer went out of town a couple days. Sh

Re: Is there any way to limit the amount of data in an mbuf chain submitted to a driver?

2013-05-17 Thread Laurie Jennings
Did you get to commit that new code yet? Laurie --- On Sat, 5/4/13, Jack Vogel wrote: From: Jack Vogel Subject: Re: Is there any way to limit the amount of data in an mbuf chain submitted to a driver? To: "Richard Sharpe" Cc: "FreeBSD Net" , "Adrian Chadd" Date: Saturday, May 4, 2013, 2:18 P

Re: shm_map questions

2013-04-20 Thread Laurie Jennings
That does help. Is there a way for the kernel to access the memory map directlyby segment name? Laurie --- On Thu, 4/18/13, John Baldwin wrote: From: John Baldwin Subject: Re: shm_map questions To: freebsd-net@freebsd.org Cc: "Laurie Jennings" Date: Thursday, April 18, 2013, 6

shm_map questions

2013-04-11 Thread Laurie Jennings
Im working on a simple project that shares a memory segment between a user processand a kernel module. I'm having some problems with shm_map and there doesn't seem to be much info on it. Im not sure what happened to the memory when the user process that creates it  terminates.  I have some questi