Date: Thu, 16 Apr 2009 06:14:35 GMT From: Vishwas Karmalekar <vishwas.karmalekar@patni.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/133768: MONITOR PANIC: vcpu-0:VMM64 DoubleFault src=MONITOR @ rip=0xfffffffffc24e530 rsp=0xfffffffffc001000 regs=0xfffffffffc048f40 (0xfffffffffc24e9f1, 0xfffffffffc24e530)While Powering ON FreeBSD 7.1 -64bit guest with 64GB RAM Message-ID: <200904160614.n3G6EZUC002438@www.freebsd.org> Resent-Message-ID: <200904160620.n3G6K1dL000603@freefall.freebsd.org>
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>Number: 133768 >Category: kern >Synopsis: MONITOR PANIC: vcpu-0:VMM64 DoubleFault src=MONITOR @ rip=0xfffffffffc24e530 rsp=0xfffffffffc001000 regs=0xfffffffffc048f40 (0xfffffffffc24e9f1,0xfffffffffc24e530)While Powering ON FreeBSD 7.1 -64bit guest with 64GB RAM >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Apr 16 06:20:01 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Vishwas Karmalekar >Release: FreeBSD 7.1 - 32bit & 64bit >Organization: Patni Computer Systems Limited. >Environment: FreeBSD 7.1 -32bit FreeBSD .vishwas.com 7.1-RELEASE FreeBSD 7.1-RELEASE #0: Thu Apr 16 01:18:34 IST 2009 root@.vishwas.com:/usr/src/sys/i386/compile/PAE i386 >Description: FreeBSD 7.1 - 32bit- Configuring PAE in FreeBSD 6.3 & 7.1 systems follow different steps. In FreeBSD 7.1 -32bit, the PAE kernel configuration file is included with the distribution, one doesn't need to create it. Steps that I followed- cd /usr/src/sys/i386/conf config PAE cd ../compile/PAE make cleandepend && make depend make make install reboot Systems works perfectly with 16GB RAM(This means PAE is working in the guest.) * With 24GB & 32GB memory, system hangs & gives error- Panic : Page fault error. * With 64GB of RAM, the system hangs & gives error- MONITOR PANIC: vcpu-0:DoubleFault @ 0x4020:0xb91d8 (0xff0,0x1064) (0xb6cb8, 0xb9130) FreeBSD 7.1 - 64bit There are no issues uptil 24GB RAM. * With 32GB RAM, system hangs & gives error- Panic : Page fault error. * With 64GB of RAM, the system hangs & gives error- MONITOR PANIC: vcpu-0:VMM64 DoubleFault src=MONITOR @ rip=0xfffffffffc24e530 rsp=0xfffffffffc001000 regs=0xfffffffffc048f40 (0xfffffffffc24e9f1,0xfffffffffc24e530 My query is- (1) 64GB works fine if PAE is enabled in 32bit FBSD 7.1 32bit? (2) Am I making any mistake in executing steps. (3) The reason behind Panic: Page fault (4) The reason behinf Memory Panic (5) Is this a OS related issue. Please let me know the solution for the above issue. Thanks in advance. Vishwas >How-To-Repeat: If I change the RAM size to 16GB, both of the dead systems are UP & work very well. Ofcourse, it takes a large "UP time". (may be 10-15 mins) If one changes the system ram to 64GB, the issue can be reproduced. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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