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SubjectOops: 2.5.64 check_obj_poison for 'size-64'
This just popped up on my screen, seems to have been triggered by sar/cron 
(i'll probably have to reboot the box soon)

slab error in check_poison_obj(): cache `size-64': object was modified after freeing
Call Trace:
[<c0142226>] check_poison_obj+0x66/0x70
[<c0143b92>] kmalloc+0xd2/0x180
[<c0166078>] pipe_new+0x28/0xd0
[<c0166153>] get_pipe_inode+0x23/0xb0
[<c0166212>] do_pipe+0x32/0x1e0
[<c0111ed3>] sys_pipe+0x13/0x60
[<c010ad9b>] syscall_call+0x7/0xb

Unable to handle kernel paging request at virtual address 2020202b
printing eip:
c010cbd7
*pde = 5a5a5a5a
Oops: 0002
CPU: 0
EIP: 0060:[<c010cbd7>] Not tainted
EFLAGS: 00010283
EIP is at show_interrupts+0x237/0x270
eax: 20202020 ebx: e4f798a4 ecx: 00000000 edx: 0000000b
esi: c02ba31b edi: 00000020 ebp: 00000000 esp: e424df00
ds: 007b es: 007b ss: 0068
Process sadc (pid: 1250, threadinfo=e424c000 task=e43780e0)
Stack: 00000390 c03b40a0 000000e0 00000001 e4f799bc 00000001 e4f799bc c0178e68
e4f799bc 00000001 e424df38 00000000 e424df48 00000001 00000000 00000000
e41d1870 e457ae84 e4649ef0 e4649ee4 00000000 40014000 e3830b54 00000400
Call Trace:
[<c0178e68>] seq_read+0x108/0x2c0
[<c01590d8>] vfs_read+0xa8/0x160
[<c01593ca>] sys_read+0x2a/0x40
[<c010ad9b>] syscall_call+0x7/0xb
Code: c6 04 02 0a ff 43 0c a1 60 6a 3b c0 50 68 21 a3 2b c0 53 e8

(gdb) list *show_interrupts+0x237
0xc010cbd7 is in show_interrupts (include/linux/seq_file.h:40).
35 int seq_escape(struct seq_file *, const char *, const char *);
36
37 static inline int seq_putc(struct seq_file *m, char c)
38 {
39 if (m->count < m->size) {
40 m->buf[m->count++] = c;
41 return 0;
42 }
43 return -1;
--
function.linuxpower.ca
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