Messages in this thread | | | Date | Tue, 14 Mar 2000 15:13:09 -0500 | From | Dilip Daya <> | Subject | Oops from kmem_cache_free on Red-Hat 6.0 release 2.2.5-15 |
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Hi,
Red Hat 2.2.5-15 kernel Oops "Unable to handle kernel NULL pointer dereference at virtual address 00000000" in kmem_cache_free, running SMP kernel version 2.2.5-15. The problem has also occured on a UP version of same 2.2.5 kernel.
(We've already run two separate types of memory tests, one that comes with the hp-netservers, and one untar-and-recursive-diff script. Neither one pointed out any memory errors.)
ksymoops output from ksymoops 2.3.3: ksymoops 2.3.3 on i686 2.2.10. Options used -V (specified) -k proc.ksyms (specified) -l proc.modules (specified) -o 2.2.5-15smp/ (specified) -m System.map-2.2.5-15smp (specified) -S
Unable to handle kernel NULL pointer dereference at virtual address 00000000 current->tss.cr3 = 00101000, %cr3 = 00101000 *pde = 00000000 Oops: 0002 CPU: 1 EIP: 0010:[<c012308f>] Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010286 eax: 00000040 ebx: cb71ccc0 ecx: c68ea000 edx: c79ba000 esi: c058f680 edi: 00000286 ebp: cce2efe0 esp: c68ebf54 ds: 0018 es: 0018 ss: 0018 Process cucipop (pid: 1051, process nr: 31, stackpage=c68eb000) Stack: d022ef20 00003000 cb71ccfc c011e5b6 c011e5d5 c058f680 cb71ccc0 d022ef20 00101000 c68ea000 c68ebfb4 00000000 c011439c d022ef20 d022ef20 d022ef20 c0118f2d d022ef20 c68ea000 4013cf04 00000000 c810c540 c8619740 c68ea000 Call Trace: [<c011e5b6>] [<c011e5d5>] [<c011439c>] [<c0118f2d>] [<c011911f>] [<c0108b6c>] Code: c7 05 00 00 00 00 00 00 00 00 eb 10 90 56 53 68 3e c5 1d c0
>>EIP; c012308f <kmem_cache_free+173/198> <===== Trace; c011e5b6 <exit_mmap+ae/108> Trace; c011e5d5 <exit_mmap+cd/108> Trace; c011439c <mmput+1c/34> Trace; c0118f2d <do_exit+f1/2d4> Trace; c011911f <sys_exit+f/10> Trace; c0108b6c <system_call+34/38> Code; c012308f <kmem_cache_free+173/198> 00000000 <_EIP>: Code; c012308f <kmem_cache_free+173/198> 0: c7 05 00 00 00 00 00 movl $0x0,0x0 <===== Code; c0123096 <kmem_cache_free+17a/198> 7: 00 00 00 Code; c0123099 <kmem_cache_free+17d/198> a: eb 10 jmp 1c <_EIP+0x1c> c01230ab <kmem_cache_free+18f/198> Code; c012309b <kmem_cache_free+17f/198> c: 90 nop Code; c012309c <kmem_cache_free+180/198> d: 56 pushl %esi Code; c012309d <kmem_cache_free+181/198> e: 53 pushl %ebx Code; c012309e <kmem_cache_free+182/198> f: 68 3e c5 1d c0 pushl $0xc01dc53e
---------- The original oops message is listed below --------
martin # kmem_free: Bad obj addr (objp=cb71ccc0, name=vm_area_struct) Unable to handle kernel NULL pointer dereference at virtual address 00000000 current->tss.cr3 = 00101000, %cr3 = 00101000 *pde = 00000000 Oops: 0002 CPU: 1 EIP: 0010:[<c012308f>] EFLAGS: 00010286 eax: 00000040 ebx: cb71ccc0 ecx: c68ea000 edx: c79ba000 esi: c058f680 edi: 00000286 ebp: cce2efe0 esp: c68ebf54 ds: 0018 es: 0018 ss: 0018 Process cucipop (pid: 1051, process nr: 31, stackpage=c68eb000) Stack: d022ef20 00003000 cb71ccfc c011e5b6 c011e5d5 c058f680 cb71ccc0 d022ef20 00101000 c68ea000 c68ebfb4 00000000 c011439c d022ef20 d022ef20 d022ef20 c0118f2d d022ef20 c68ea000 4013cf04 00000000 c810c540 c8619740 c68ea000 Call Trace: [<c011e5b6>] [<c011e5d5>] [<c011439c>] [<c0118f2d>] [<c011911f>] [<c0108b6c>] Code: c7 05 00 00 00 00 00 00 00 00 eb 10 90 56 53 68 3e c5 1d c0 ICMP: 212.72.199.165: Source Route Failed. ICMP: 212.72.199.165: Source Route Failed. ICMP: 212.72.199.134: Source Route Failed. ICMP: 212.72.199.165: Source Route Failed. ICMP: 212.72.199.165: Source Route Failed. --------------------------------------------------------------------
I would appreciate any assistance if possible.
Any ideas if the above is fixed ?
Sincerely, Dilip Daya.begin:vcard n:Daya;Dilip tel;fax:(770) 587-4196 tel;work:(404) TN 648-2738 x-mozilla-html:TRUE url:http://wtec.cup.hp.com/~dist_comp org:Hewlett Packard Company;Worldwide Technology Expert Center adr:;;20 Perimeter Summit Blvd.;Atlanta, Georgia, 30319;U.S.A.;; version:2.1 email;internet:dnd@atl.hp.com title:WTEC Distributed Computing fn:Dilip Daya end:vcard
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