2.4.19-pre5 - kernel BUG at page_alloc.c

Michal Jaegermann (michal@harddata.com)
Tue, 2 Apr 2002 12:33:48 -0700

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This is from Alpha UP1500 (Nautilus) with a kernel based on 2.4.19-pre5
and somewhat modified in Nautilus specific parts to be bootable on that
machine at all. I have seen similar incidents before and they seem to
be too repeateable just to chalk them to "not really stable yet" status
of the machine in question although what is in a register a4, i.e. a
string "ghijklmn", surely looks unusual.

Anyway, the box went catatonic but before doing that left in log
files a series of oopses which decoded look like that:

ksymoops 2.4.1 on alpha 2.4.19-pre5.ink.agp. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.19-pre5.ink.agp/ (default)
-m /boot/System.map-2.4.19-pre5.ink.agp (specified)

Warning (compare_maps): ksyms_base symbol GPLONLY_vmalloc_to_page not found in System.map. Ignoring ksyms_base entry
kernel BUG at page_alloc.c:241!
run-parts(3421): Kernel Bug 1
pc = [rmqueue+888/1024] ra = [rmqueue+876/1024] ps = 0000 Not tainted
pc = [<fffffc0000845448>] ra = [<fffffc000084543c>] ps = 0000 Not tainted
Using defaults from ksymoops -t elf64-alpha -a alpha
v0 = 0000000000000020 t0 = 0000000000000001 t1 = fffffc00de0a3ec8
t2 = 000000000000002a t3 = 0000000000000001 t4 = fffffc0000af40c8
t5 = fffffc00d9184bc0 t6 = 0000000000000065 t7 = fffffc00bf4f8000
a0 = 0000000000000000 a1 = 0000000000000001 a2 = 0000000000000001
a3 = 0000000000000000 a4 = 6e6d6c6b6a696867 a5 = 0000000000000002
t8 = fffffc0000af4d20 t9 = 0000000000004000 t10= fffffc0000af4d28
t11= fffffc0000af4d38 pv = fffffc0000820d30 at = 0000000000003fff
gp = fffffc0000ae8ce8 sp = fffffc00bf4fbd60
Trace:fffffc000084590c fffffc00008454fc fffffc0000836538 fffffc0000836604 fffffc0000837238 fffffc000081fec8 fffffc0000812e3c
Code: 225f00f1 a77da708 6b5b7d5d 27ba002a 23bd38ac 00000081 <a04a0000> 44501001

>>PC; fffffc0000845448 <rmqueue+378/400> <=====
Trace; fffffc000084590c <__alloc_pages+7c/260>
Trace; fffffc00008454fc <_alloc_pages+2c/40>
Trace; fffffc0000836538 <do_wp_page+a8/3e0>
Trace; fffffc0000836604 <do_wp_page+174/3e0>
Trace; fffffc0000837238 <handle_mm_fault+118/1c0>
Trace; fffffc000081fec8 <do_page_fault+208/4c0>
Trace; fffffc0000812e3c <entMM+9c/c0>
Code; fffffc0000845430 <rmqueue+360/400>
0000000000000000 <_PC>:
Code; fffffc0000845430 <rmqueue+360/400>
0: f1 00 5f 22 lda a2,241(zero)
Code; fffffc0000845434 <rmqueue+364/400>
4: 08 a7 7d a7 ldq t12,-22776(gp)
Code; fffffc0000845438 <rmqueue+368/400>
8: 5d 7d 5b 6b jsr ra,(t12),fffffffffffff580 <_PC+0xfffffffffffff580> fffffc00008449b0 <rw_swap_page_base+1b0/1e0>
Code; fffffc000084543c <rmqueue+36c/400>
c: 2a 00 ba 27 ldah gp,42(ra)
Code; fffffc0000845440 <rmqueue+370/400>
10: ac 38 bd 23 lda gp,14508(gp)
Code; fffffc0000845444 <rmqueue+374/400>
14: 81 00 00 00 call_pal 0x81
Code; fffffc0000845448 <rmqueue+378/400> <=====
18: 00 00 4a a0 ldl t1,0(s1) <=====
Code; fffffc000084544c <rmqueue+37c/400>
1c: 01 10 50 44 and t1,0x80,t0

kernel BUG at page_alloc.c:241!
diskcheck(3422): Kernel Bug 1
pc = [rmqueue+888/1024] ra = [rmqueue+876/1024] ps = 0000 Not tainted
pc = [<fffffc0000845448>] ra = [<fffffc000084543c>] ps = 0000 Not tainted
v0 = 0000000000000020 t0 = 0000000000000001 t1 = fffffc00de0a3ec8
t2 = 0000000000000028 t3 = 0000000000000001 t4 = fffffc0000af40c8
t5 = fffffc00d91843c0 t6 = 0000000000000065 t7 = fffffc00bf938000
a0 = 0000000000000000 a1 = 0000000000000001 a2 = 0000000000000001
a3 = 0000000000000000 a4 = 6e6d6c6b6a696867 a5 = 0000000000000002
t8 = fffffc0000af4d20 t9 = 0000000000004000 t10= fffffc0000af4d28
t11= fffffc0000af4d38 pv = fffffc0000820d30 at = 0000000000003fff
gp = fffffc0000ae8ce8 sp = fffffc00bf93bd60
Trace:fffffc000084590c fffffc00008454fc fffffc0000836538 fffffc0000836604 fffffc0000837238 fffffc000081fec8 fffffc0000812e3c fffffc0000818c94
Code: 225f00f1 a77da708 6b5b7d5d 27ba002a 23bd38ac 00000081 <a04a0000> 44501001

>>PC; fffffc0000845448 <rmqueue+378/400> <=====
Trace; fffffc000084590c <__alloc_pages+7c/260>
Trace; fffffc00008454fc <_alloc_pages+2c/40>
Trace; fffffc0000836538 <do_wp_page+a8/3e0>
Trace; fffffc0000836604 <do_wp_page+174/3e0>
Trace; fffffc0000837238 <handle_mm_fault+118/1c0>
Trace; fffffc000081fec8 <do_page_fault+208/4c0>
Trace; fffffc0000812e3c <entMM+9c/c0>
Trace; fffffc0000818c94 <do_entInt+84/170>
Code; fffffc0000845430 <rmqueue+360/400>
0000000000000000 <_PC>:
Code; fffffc0000845430 <rmqueue+360/400>
0: f1 00 5f 22 lda a2,241(zero)
Code; fffffc0000845434 <rmqueue+364/400>
4: 08 a7 7d a7 ldq t12,-22776(gp)
Code; fffffc0000845438 <rmqueue+368/400>
8: 5d 7d 5b 6b jsr ra,(t12),fffffffffffff580 <_PC+0xfffffffffffff580> fffffc00008449b0 <rw_swap_page_base+1b0/1e0>
Code; fffffc000084543c <rmqueue+36c/400>
c: 2a 00 ba 27 ldah gp,42(ra)
Code; fffffc0000845440 <rmqueue+370/400>
10: ac 38 bd 23 lda gp,14508(gp)
Code; fffffc0000845444 <rmqueue+374/400>
14: 81 00 00 00 call_pal 0x81
Code; fffffc0000845448 <rmqueue+378/400> <=====
18: 00 00 4a a0 ldl t1,0(s1) <=====
Code; fffffc000084544c <rmqueue+37c/400>
1c: 01 10 50 44 and t1,0x80,t0

kernel BUG at page_alloc.c:241!
X(1207): Kernel Bug 1
pc = [rmqueue+888/1024] ra = [rmqueue+876/1024] ps = 0000 Not tainted
pc = [<fffffc0000845448>] ra = [<fffffc000084543c>] ps = 0000 Not tainted
v0 = 0000000000000020 t0 = 0000000000000001 t1 = fffffc00de0a3ec8
t2 = 0000000000000058 t3 = 0000000000000001 t4 = fffffc0000af40c8
t5 = fffffc0003d456c0 t6 = 0000000000000065 t7 = fffffc00dc12c000
a0 = 0000000000000000 a1 = 0000000000000001 a2 = 0000000000000001
a3 = 0000000000000000 a4 = 6e6d6c6b6a696867 a5 = 0000000000000002
t8 = fffffc0000af4d20 t9 = 0000000000004000 t10= fffffc0000af4d28
t11= fffffc0000af4d38 pv = fffffc0000820d30 at = 0000000000003fff
gp = fffffc0000ae8ce8 sp = fffffc00dc12fd40
Trace:fffffc000084590c fffffc000099ef0c fffffc00008454fc fffffc0000836e68 fffffc0000836d98 fffffc0000836f0c fffffc00008371e8 fffffc000081fec8 fffffc0000812e3c
Code: 225f00f1 a77da708 6b5b7d5d 27ba002a 23bd38ac 00000081 <a04a0000> 44501001

>>PC; fffffc0000845448 <rmqueue+378/400> <=====
Trace; fffffc000084590c <__alloc_pages+7c/260>
Trace; fffffc000099ef0c <kfree_skbmem+1c/a0>
Trace; fffffc00008454fc <_alloc_pages+2c/40>
Trace; fffffc0000836e68 <do_anonymous_page+128/170>
Trace; fffffc0000836d98 <do_anonymous_page+58/170>
Trace; fffffc0000836f0c <do_no_page+5c/270>
Trace; fffffc00008371e8 <handle_mm_fault+c8/1c0>
Trace; fffffc000081fec8 <do_page_fault+208/4c0>
Trace; fffffc0000812e3c <entMM+9c/c0>
Code; fffffc0000845430 <rmqueue+360/400>
0000000000000000 <_PC>:
Code; fffffc0000845430 <rmqueue+360/400>
0: f1 00 5f 22 lda a2,241(zero)
Code; fffffc0000845434 <rmqueue+364/400>
4: 08 a7 7d a7 ldq t12,-22776(gp)
Code; fffffc0000845438 <rmqueue+368/400>
8: 5d 7d 5b 6b jsr ra,(t12),fffffffffffff580 <_PC+0xfffffffffffff580> fffffc00008449b0 <rw_swap_page_base+1b0/1e0>
Code; fffffc000084543c <rmqueue+36c/400>
c: 2a 00 ba 27 ldah gp,42(ra)
Code; fffffc0000845440 <rmqueue+370/400>
10: ac 38 bd 23 lda gp,14508(gp)
Code; fffffc0000845444 <rmqueue+374/400>
14: 81 00 00 00 call_pal 0x81
Code; fffffc0000845448 <rmqueue+378/400> <=====
18: 00 00 4a a0 ldl t1,0(s1) <=====
Code; fffffc000084544c <rmqueue+37c/400>
1c: 01 10 50 44 and t1,0x80,t0

kernel BUG at page_alloc.c:241!
X(3433): Kernel Bug 1
pc = [rmqueue+888/1024] ra = [rmqueue+876/1024] ps = 0000 Not tainted
pc = [<fffffc0000845448>] ra = [<fffffc000084543c>] ps = 0000 Not tainted
v0 = 0000000000000020 t0 = 0000000000000001 t1 = fffffc00de0a3ec8
t2 = 000000000000002c t3 = 0000000000000001 t4 = fffffc0000af40c8
t5 = fffffc0003d45dc0 t6 = 0000000000000065 t7 = fffffc00d98e0000
a0 = 0000000000000000 a1 = 0000000000000001 a2 = 0000000000000001
a3 = 0000000000000000 a4 = 6e6d6c6b6a696867 a5 = 0000000000000002
t8 = fffffc0000af4d20 t9 = 0000000000004000 t10= fffffc0000af4d28
t11= fffffc0000af4d38 pv = fffffc0000820d30 at = 0000000000003fff
gp = fffffc0000ae8ce8 sp = fffffc00d98e3d40
Trace:fffffc000084590c fffffc0000882630 fffffc00008454fc fffffc0000836e68 fffffc0000836d98 fffffc0000836f0c fffffc00008371e8 fffffc000081fec8 fffffc0000812e3c
Code: 225f00f1 a77da708 6b5b7d5d 27ba002a 23bd38ac 00000081 <a04a0000> 44501001

>>PC; fffffc0000845448 <rmqueue+378/400> <=====
Trace; fffffc000084590c <__alloc_pages+7c/260>
Trace; fffffc0000882630 <ext3_commit_write+1b0/220>
Trace; fffffc00008454fc <_alloc_pages+2c/40>
Trace; fffffc0000836e68 <do_anonymous_page+128/170>
Trace; fffffc0000836d98 <do_anonymous_page+58/170>
Trace; fffffc0000836f0c <do_no_page+5c/270>
Trace; fffffc00008371e8 <handle_mm_fault+c8/1c0>
Trace; fffffc000081fec8 <do_page_fault+208/4c0>
Trace; fffffc0000812e3c <entMM+9c/c0>
Code; fffffc0000845430 <rmqueue+360/400>
0000000000000000 <_PC>:
Code; fffffc0000845430 <rmqueue+360/400>
0: f1 00 5f 22 lda a2,241(zero)
Code; fffffc0000845434 <rmqueue+364/400>
4: 08 a7 7d a7 ldq t12,-22776(gp)
Code; fffffc0000845438 <rmqueue+368/400>
8: 5d 7d 5b 6b jsr ra,(t12),fffffffffffff580 <_PC+0xfffffffffffff580> fffffc00008449b0 <rw_swap_page_base+1b0/1e0>
Code; fffffc000084543c <rmqueue+36c/400>
c: 2a 00 ba 27 ldah gp,42(ra)
Code; fffffc0000845440 <rmqueue+370/400>
10: ac 38 bd 23 lda gp,14508(gp)
Code; fffffc0000845444 <rmqueue+374/400>
14: 81 00 00 00 call_pal 0x81
Code; fffffc0000845448 <rmqueue+378/400> <=====
18: 00 00 4a a0 ldl t1,0(s1) <=====
Code; fffffc000084544c <rmqueue+37c/400>
1c: 01 10 50 44 and t1,0x80,t0

1 warning issued. Results may not be reliable.

Not that I can repeat that performance on demand. :-)

Michal
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