Date: Tue, 04 Aug 2009 09:34:10 -0700 From: Julian Elischer <julian@elischer.org> To: Maslan <maslanbsd@gmail.com> Cc: Ed Schouten <ed@80386.nl>, FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: sosend() and mbuf Message-ID: <4A786302.3090709@elischer.org> In-Reply-To: <319cceca0908040239k2accd7fen402db4c91687a267@mail.gmail.com> References: <319cceca0908030119i3432a495ya60aa431dab0e1b1@mail.gmail.com> <86k51k4kvl.fsf@ds4.des.no> <86fxc84ksj.fsf@ds4.des.no> <200908040138.14743.max@love2party.net> <319cceca0908040227hf9a0f92jbf05b11e9f974994@mail.gmail.com> <20090804093036.GN1292@hoeg.nl> <319cceca0908040239k2accd7fen402db4c91687a267@mail.gmail.com>
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Maslan wrote: > I'm getting crazy, > > I don't know why kern_open() works in the module's main thread, but > when I use it in another thread created by kthread_create() it crashes > the kernel ??? > kernel threads may not have a file descriptor table. so kern_open may not work on kernel processes.. (just speculating) > > On Tue, Aug 4, 2009 at 9:30 AM, Ed Schouten<ed@80386.nl> wrote: >> Hi, >> >> * Maslan <maslanbsd@gmail.com> wrote: >>> man kthread says: >>> The kthread_create() function is used to create a kernel thread. The new >>> thread shares its address space with process 0, the swapper process, and >> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >>> runs in kernel mode only. >>> >>> However, when i checked the pid & tid of the new created thread it was >>> not the same as the parent nor as the proc0 & thread0 >> I am not sure, but sharing another process's address space doesn't have >> to imply it shares the same pid, right? >> >> -- >> Ed Schouten <ed@80386.nl> >> WWW: http://80386.nl/ >> > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"
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