Date: Wed, 02 Nov 2016 08:09:35 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-pf@FreeBSD.org Subject: [Bug 209475] pf didn't check if enough free RAM for net.pf.states_hashsize Message-ID: <bug-209475-17777-ru5XOfXS7c@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-209475-17777@https.bugs.freebsd.org/bugzilla/> References: <bug-209475-17777@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209475 fehmi noyan isi <fnoyanisi@yahoo.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #170810|0 |1 is obsolete| | --- Comment #7 from fehmi noyan isi <fnoyanisi@yahoo.com> --- Created attachment 176410 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=176410&action=edit The latest patch with console and logging facility outputs Hi there, I setup another VM running FreeBSD 12.0-CURRENT and updated the previous patch to reflect Olivier's suggestion with regards to logging. I used printf(9) to print an error message similar to this pf: Invalid states hash table size : 2147483648. Using the default value 32768. Not mentioned in the original bug report, but value of f_srchashsize also needs to be verified against the available memory as setting net.pf.source_nodes_hashsize tunable to a value larger than malloc(9) can allocate causes the system to crash. The snippet below was captured with script(1) utility from a FreeBSD 12.0-CURRENT system patched with attached diff file (note that console output is not captured, only tty) VM3 ---------------------------------------------------------- Script started on Wed Nov 2 20:07:09 2016 root@vm3:~ # uname -a FreeBSD vm3 12.0-CURRENT FreeBSD 12.0-CURRENT #2: Tue Nov 1 20:27:46 NZDT 2016 root@vm3:/usr/obj/usr/src/sys/GENERIC amd64 root@vm3:~ # cat /boot/loader.conf net.pf.states_hashsize="2147483648" root@vm3:~ # sysctl hw.realmem hw.realmem: 536805376 root@vm3:~ # kldstat Id Refs Address Size Name 1 3 0xffffffff80200000 1fdc408 kernel 2 1 0xffffffff82419000 2ac85 vboxguest.ko root@vm3:~ # service pf onestart Enabling pf. root@vm3:~ # kldstat Id Refs Address Size Name 1 5 0xffffffff80200000 1fdc408 kernel 2 1 0xffffffff82419000 2ac85 vboxguest.ko 3 1 0xffffffff82444000 351a7 pf.ko root@vm3:~ # dmesg | grep pf pf: Invalid states hash table size : 2147483648. Using the default value 32768. pf: Invalid source node hash table size : 0. Using the default value 8192. root@vm3:~ # exit exit Script done on Wed Nov 2 20:08:23 2016 ---------------------------------------------------------- -- You are receiving this mail because: You are the assignee for the bug.
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