<html><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><META name="Author" content="Novell GroupWise WebAccess"></head><body style='font-family: Tahoma, sans-serif; font-size: 13px; '>Dear centos community,<br>I was in the process of loading the latest 5.5 release of centos in a VMWARE ESX 4.1 host as my first virtual machine, suddenly while booting I got a panic error with the following on screen. Can someone point me in the right direction. This machine has 24 cores and I allocated 1 for Centos to use with 1024MB of memory. Any clues or workaround to solve this problem? Thank you in advance. <br><br><p><span style="font-family: __;">Unable to handle kernel NULL pointer dereference at 0000000000000040 RIP:</span></p><p><span style="font-family: __;"> [<ffffffff8008192f>] cpuid4_cache_lookup+0x256/0x356</span></p><p><span style="font-family: __;">PGD 0</span></p><p><span style="font-family: __;">Oops: 0000 [1] SMP</span></p><p><span style="font-family: __;">last sysfs file:</span></p><p><span style="font-family: __;">CPU 0</span></p><p><span style="font-family: __;">Modules linked in:</span></p><p><span style="font-family: __;">Pid: 1, comm: swapper Not tainted 2.6.18-194.el5 #1</span></p><p><span style="font-family: __;">RIP: 0010:[<ffffffff8008192f>] [<ffffffff8008192f>] cpuid4_cache_lookup+0x256/6</span></p><p><span style="font-family: __;">RSP: 0000:ffff81010fc75d60 EFLAGS: 00010246</span></p><p><span style="font-family: __;">RAX: 0000000000000000 RBX: 0000000000000060 RCX: 00000000000006aa</span></p><p><span style="font-family: __;">RDX: 0000000000000000 RSI: 0000000000000060 RDI: 0000000000000003</span></p><p><span style="font-family: __;">RBP: ffff81010f765580 R08: 0000000000000001 R09: 0000000000000040</span></p><p><span style="font-family: __;">R10: ffff81010fc75cf0 R11: 0000000000000060 R12: 0000000000000080</span></p><p><span style="font-family: __;">R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003</span></p><p><span style="font-family: __;">FS: 0000000000000000(0000) GS:ffffffff803cb000(0000) knlGS:0000000000000000</span></p><p><span style="font-family: __;">CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b</span></p><p><span style="font-family: __;">CR2: 0000000000000040 CR3: 0000000000201000 CR4: 00000000000006e0</span></p><p><span style="font-family: __;">Process swapper (pid: 1, threadinfo ffff81010fc74000, task ffff81010fc657a0)</span></p><p><span style="font-family: __;">Stack: ffff81010fc75e00 000280000f765ec0 0000000000000000 0000000000000000</span></p><p><span style="font-family: __;"> 0000000040020140 00000000000000d0 ffff810140020140 0000000000000286</span></p><p><span style="font-family: __;"> 00000000000006a9 0000000000000000 0000000017c0003f 0000000000000000</span></p><p><span style="font-family: __;">Call Trace:</span></p><p><span style="font-family: __;"> [<ffffffff80081c48>] cacheinfo_cpu_callback+0xe9/0x516</span></p><p><span style="font-family: __;"> [<ffffffff80081c93>] cacheinfo_cpu_callback+0x134/0x516</span></p><p><span style="font-family: __;"> [<ffffffff800820ae>] cache_sysfs_init+0x39/0x54</span></p><p><span style="font-family: __;"> [<ffffffff80407a5c>] init+0x1f9/0x2f7</span></p><p><span style="font-family: __;"> [<ffffffff8005efb1>] child_rip+0xa/0x11</span></p><p><span style="font-family: __;"> [<ffffffff801824cc>] acpi_ds_init_one_object+0x0/0x80</span></p><p><span style="font-family: __;"> [<ffffffff80407863>] init+0x0/0x2f7</span></p><p><span style="font-family: __;"> [<ffffffff8005efa7>] child_rip+0x0/0x11</span></p><p><span style="font-family: __;"><br></span></p><p><span style="font-family: __;"><br></span></p><p><span style="font-family: __;">Code: 8b 72 40 48 8d 4c 24 1c 48 8b 7a 20 ba c4 01 00 00 e8 5f 77</span></p><p><span style="font-family: __;">RIP [<ffffffff8008192f>] cpuid4_cache_lookup+0x256/0x356</span></p><p><span style="font-family: __;"> RSP <ffff81010fc75d60></span></p><p><span style="font-family: __;">CR2: 0000000000000040</span></p><p><span style="font-family: __;"> <0>Kernel panic - not syncing: Fatal exception</span></p><br></body></html>