Re: Linux 2.4.20-pre2-ac6

[Rudmer van Dijk <rudmer@legolas.dynup.net>]

Hi Alan, Andre,

I have tried all 2.4.20-pre2-acX and found them stable until I tried to 
burn a CD with -ac6...

the burner is an ide device, and after reading the changelog I decided to 
give it a try:

I used cdrecord (via Xcdroast) and the burning never started due to the 
fact that a kernel bug appeeared and the first cdrecord instance became a 
zombie and the second got stuck in D state.

meanwhile (after the bug) the kernel was spitting out these messages 
(around 4-5 a second):
<snip>
Aug 22 00:16:27 gandalf kernel: SCSI host 0 abort (pid 1784) timed out - 
resetting
Aug 22 00:16:27 gandalf kernel: SCSI bus is being reset for host 0 channel 0.
Aug 22 00:16:27 gandalf kernel: scsi : aborting command due to timeout : 
pid 1785, scsi0, channel 0, id 1, lun 0 0x1e 00 00 00 01 00
Aug 22 00:16:27 gandalf kernel: SCSI host 0 abort (pid 1785) timed out - 
resetting
Aug 22 00:16:27 gandalf kernel: SCSI bus is being reset for host 0 channel 0.
Aug 22 00:16:27 gandalf kernel: scsi : aborting command due to timeout : 
pid 1782, scsi0, channel 0, id 1, lun 0 0x2a 00 00 00 00 00 00 00 1f 00
Aug 22 00:16:27 gandalf kernel: SCSI host 0 abort (pid 1782) timed out - 
resetting
Aug 22 00:16:27 gandalf kernel: SCSI bus is being reset for host 0 channel 0.
Aug 22 00:16:27 gandalf kernel: scsi : aborting command due to timeout : 
pid 1783, scsi0, channel 0, id 1, lun 0 0x00 00 00 00 00 00
Aug 22 00:16:27 gandalf kernel: SCSI host 0 abort (pid 1783) timed out - 
resetting
Aug 22 00:16:27 gandalf kernel: SCSI bus is being reset for host 0 channel 0.
Aug 22 00:16:27 gandalf kernel: scsi : aborting command due to timeout : 
pid 1784, scsi0, channel 0, id 1, lun 0 0x1e 00 00 00 01 00
Aug 22 00:16:27 gandalf kernel: SCSI host 0 abort (pid 1784) timed out - 
resetting
Aug 22 00:16:27 gandalf kernel: SCSI bus is being reset for host 0 channel 0.
Aug 22 00:16:27 gandalf kernel: scsi : aborting command due to timeout : 
pid 1785, scsi0, channel 0, id 1, lun 0 0x1e 00 00 00 01 00
<snip>

well the pid's are strange, since the two cdrecord instances were pid 433 
and 434...

the oops (through ksymoops):

rudmer:~ # ksymoops -L -m /boot/System.map-2.4.20-pre2-ac6 < oops
ksymoops 2.4.3 on i686 2.4.20-pre2-ac6.  Options used
      -V (default)
      -k /proc/ksyms (default)
      -L (specified)
      -o /lib/modules/2.4.20-pre2-ac6/ (default)
      -m /boot/System.map-2.4.20-pre2-ac6 (specified)

No modules in ksyms, skipping objects
Warning (compare_maps): ksyms_base symbol GPLONLY_idle_cpu not found in 
System.map.  Ignoring ksyms_base entry
Warning (compare_maps): ksyms_base symbol 
GPLONLY_ip_conntrack_expect_find_get not found in System.map.  Ignoring 
ksyms_base entry
Warning (compare_maps): ksyms_base symbol GPLONLY_ip_conntrack_expect_put 
not found in System.map.  Ignoring ksyms_base entry
Warning (compare_maps): ksyms_base symbol GPLONLY_ip_conntrack_find_get not 
found in System.map.  Ignoring ksyms_base entry
Warning (compare_maps): ksyms_base symbol GPLONLY_ip_conntrack_put not 
found in System.map.  Ignoring ksyms_base entry
Aug 22 00:02:21 gandalf kernel: kernel BUG in header file at line 157
Aug 22 00:02:21 gandalf kernel: kernel BUG at panic.c:286!
Aug 22 00:02:21 gandalf kernel: invalid operand: 0000
Aug 22 00:02:21 gandalf kernel: CPU:    0
Aug 22 00:02:21 gandalf kernel: 
EIP:    0010:[__out_of_line_bug+15/32]    Not tainted
Aug 22 00:02:21 gandalf kernel: EFLAGS: 00010286
Aug 22 00:02:21 gandalf kernel: eax: 00000026   ebx: 00007800   ecx: 
cdb9002c   edx: c32b0000
Aug 22 00:02:21 gandalf kernel: esi: 00000002   edi: c1360000   ebp: 
00000000   esp: c32b1b90
Aug 22 00:02:21 gandalf kernel: ds: 0018   es: 0018   ss: 0018
Aug 22 00:02:21 gandalf kernel: Process cdrecord (pid: 433, stackpage=c32b1000)
Aug 22 00:02:21 gandalf kernel: Stack: c0229e40 0000009d c01c7be1 0000009d 
c1363000 c02db588 ceacb140 ceacf800
Aug 22 00:02:21 gandalf kernel:        00000014 c1360014 00000002 c1360000 
c01c7ddb c02db4d8 ceacb140 c02db4d8
Aug 22 00:02:21 gandalf kernel:        c02db588 ceacb140 ceacf800 00000000 
00000000 c02db4d8 c01c8389 c02db588
Aug 22 00:02:21 gandalf kernel: Call Trace:    [ide_build_sglist+321/384] 
[ide_build_dmatable+91/416] [__ide_dma_write+41/288] [<d1b74963>] [<d1b74acb>]
Aug 22 00:02:21 gandalf kernel:   [<d1b67ed1>] [<d1b67376>] [<d1b673ca>] 
[<d1b61802>] [<d1b88f0b>] [<d1b89dd0>]
Aug 22 00:02:21 gandalf kernel:   [<d1b88d1b>] [<d1b89158>] 
[__alloc_pages+99/704] [reclaim_page+567/608] [__alloc_pages_limit+108/144] 
[__alloc_pages+152/704]
Aug 22 00:02:21 gandalf kernel: Code: 0f 0b 1e 01 66 9e 22 c0 eb fe 8d b4 
26 00 00 00 00 8a 54 24
Using defaults from ksymoops -t elf32-i386 -a i386

Trace; d1b67ed0 <END_OF_CODE+118870bc/????>
Trace; d1b67376 <END_OF_CODE+11886562/????>
Trace; d1b673ca <END_OF_CODE+118865b6/????>
Trace; d1b61802 <END_OF_CODE+118809ee/????>
Trace; d1b88f0a <END_OF_CODE+118a80f6/????>
Trace; d1b89dd0 <END_OF_CODE+118a8fbc/????>
Trace; d1b88d1a <END_OF_CODE+118a7f06/????>
Trace; d1b89158 <END_OF_CODE+118a8344/????>
Code;  00000000 Before first symbol
00000000 <_EIP>:
Code;  00000000 Before first symbol
    0:   0f 0b                     ud2a
Code;  00000002 Before first symbol
    2:   1e                        push   %ds
Code;  00000002 Before first symbol
    3:   01 66 9e                  add    %esp,0xffffff9e(%esi)
Code;  00000006 Before first symbol
    6:   22 c0                     and    %al,%al
Code;  00000008 Before first symbol
    8:   eb fe                     jmp    8 <_EIP+0x8> 00000008 Before 
first symbol
Code;  0000000a Before first symbol
    a:   8d b4 26 00 00 00 00      lea    0x0(%esi,1),%esi
Code;  00000010 Before first symbol
   11:   8a 54 24 00               mov    0x0(%esp,1),%dl


5 warnings issued.  Results may not be reliable.



messages after loading the scsi-ide and friends modules:
Aug 21 23:57:25 gandalf kernel:   Vendor: IOMEGA    Model: ZIP 
100           Rev: 23.D
Aug 21 23:57:25 gandalf 
kernel:   Type:   Direct-Access                      ANSI SCSI revision: 00
Aug 21 23:57:25 gandalf kernel:   Vendor: HL-DT-ST  Model: CD-RW 
GCE-8240B   Rev: 1.06
Aug 21 23:57:25 gandalf 
kernel:   Type:   CD-ROM                             ANSI SCSI revision: 02
Aug 21 23:57:25 gandalf kernel: Attached scsi CD-ROM sr0 at scsi0, channel 
0, id 1, lun 0
Aug 21 23:57:25 gandalf kernel: sr0: scsi3-mmc drive: 32x/40x writer cd/rw 
xa/form2 cdda tray
Aug 21 23:57:35 gandalf kernel: Attached scsi CD-ROM sr0 at scsi0, channel 
0, id 1, lun 0
Aug 21 23:57:35 gandalf kernel: sr0: scsi3-mmc drive: 32x/40x writer cd/rw 
xa/form2 cdda tray

lspci:
00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0735 
(rev 01)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] 5591/5592 AGP
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0)
00:0b.0 Ethernet controller: Winbond Electronics Corp W89C940
00:0f.0 Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 02)
00:11.0 Ethernet controller: Winbond Electronics Corp W89C940
01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 AGP (rev 01)


If you need more info, please ask

	Rudmer