2.1.90 oops

Bob_Tracy (rct@gherkin.sa.wlk.com)
Mon, 23 Mar 1998 13:18:43 -0600 (CST)

Finally trapped one (actually two) of these bad boys :-(. Since
2.1.89 I've been seeing system freezes and spontaneous reboots after
approximately a day of uptime (although the actual time before trouble
starts seems to depend on system activity). The traces below were
logged just prior to an unplanned reboot this morning. There was the
beginning of a third trace, but it got cut off by the reboot itself.
Ksymoops output is included.

Current configuration: 2.1.90, gcc-2.7.2.3, glibc-2.0.6, XFree86-3.3.2.
Additional info available if needed. Thanks in advance for an
explanation of what's biting me here.

====--Oops 1--====
Unable to handle kernel NULL pointer dereference at virtual address 00000000
current->tss.cr3 = 00101000, ^^r3 = 00101000
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c0120c28>]
EFLAGS: 00010082
eax: 00000000 ebx: 000015c7 ecx: 00000ae3 edx: c02d3cf0
esi: ffffffff edi: c02000e0 ebp: 00000203 esp: c192be80
ds: 0018 es: 0018 ss: 0018
Process sh (pid: 12914, process nr: 33, stackpage=c192b000)
Stack: c15c7000 c322d2b8 000ad000 00000000 00000ae3 ffffffff c0121377 0000000b
c01195b2 c15c7000 400ad000 c2a1ae60 0000c000 c3fd6f60 c1e2c400 c1168000
00000000 000b9000 00000000 400b9000 c1e2c400 c011af1a c3fd6f60 400ad000
Call Trace: [<c0121377>] [<c01195b2>] [<c011af1a>] [<c0112295>] [<c01168be>] [<c0109835>] [<c010f7d3>]
[<c010fa35>] [<c010ede2>] [<c0109992>]
Code: 89 10 c1 64 24 14 01 83 c7 0c c1 e9 01 89 4c 24 10 23 5c 24

Using `/usr/src/linux/System.map' to map addresses to symbols.

>>EIP: c0120c28 <free_pages+c0/128>
Trace: c0121377 <free_page_and_swap_cache+57/5c>
Trace: c01195b2 <zap_page_range+13e/1bc>
Trace: c011af1a <exit_mmap+aa/12c>
Trace: c0112295 <mmput+19/30>
Trace: c01168be <do_exit+a2/208>
Trace: c0109835 <do_signal+271/2ec>
Trace: c010f7d3 <force_sig_info+4b/54>
Trace: c010fa35 <force_sig+11/18>
Trace: c010ede2 <do_page_fault+1d2/328>
Trace: c0109992 <signal_return+12/30>

Code: c0120c28 <free_pages+c0/128>
====--Oops 1--====

====--Oops 2--====
Unable to handle kernel NULL pointer dereference at virtual address 00000004
current->tss.cr3 = 00101000, ^]r3 = 00101000
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c0120c25>]
EFLAGS: 00010082
eax: 00000000 ebx: 00002b68 ecx: 000015b4 edx: 00000000
esi: ffffffff edi: c02000e0 ebp: 00000206 esp: c2a89e80
ds: 0018 es: 0018 ss: 0018
Process sh (pid: 3584, process nr: 30, stackpage=c2a89000)
Stack: c2b68000 c2b892b0 000a7000 00000004 000015b4 ffffffff c0121377 00000001
c01195b2 c2b68000 080a7000 c0944340 00006000 c3fd6c60 c3b63080 c083df00
00000000 000ad000 00000000 080ad000 c3b63080 c011af1a c3fd6c60 080a7000
Call Trace: [<c0121377>] [<c01195b2>] [<c011af1a>] [<c0112295>] [<c01168be>] [<c0109835>] [<c011a496>]
[<c0108c6c>] [<c0108fd0>] [<c0109992>]
Code: 89 42 04 89 10 c1 64 24 14 01 83 c7 0c c1 e9 01 89 4c 24 10

Using `/usr/src/linux/System.map' to map addresses to symbols.

>>EIP: c0120c25 <free_pages+bd/128>
Trace: c0121377 <free_page_and_swap_cache+57/5c>
Trace: c01195b2 <zap_page_range+13e/1bc>
Trace: c011af1a <exit_mmap+aa/12c>
Trace: c0112295 <mmput+19/30>
Trace: c01168be <do_exit+a2/208>
Trace: c0109835 <do_signal+271/2ec>
Trace: c011a496 <handle_mm_fault+172/198>
Trace: c0108c6c <sys_sigaction+94/100>
Trace: c0108fd0 <sys_sigreturn+c8/dc>
Trace: c0109992 <signal_return+12/30>

Code: c0120c25 <free_pages+bd/128>
====--Oops 2--====

-- 
Bob Tracy               |  "They couldn't hit an elephant at this dist- "
Firewall Security Corp. |   - Last words of Union General John Sedgwick,
rct@frus.com            |  Battle of Spotsylvania Court House, U.S. Civil War


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