Bug 92350 - Kernel BUG at slab.c:815 when restarting Speedtouch USB ADSL service.
Kernel BUG at slab.c:815 when restarting Speedtouch USB ADSL service.
Status: CLOSED NOTABUG
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
8.0
athlon Linux
medium Severity high
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: ---
Assigned To: Arjan van de Ven
Brian Brock
:
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2003-06-05 08:51 EDT by Graeme Coates
Modified: 2007-04-18 12:54 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2003-06-05 15:51:12 EDT
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Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:


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Description Graeme Coates 2003-06-05 08:51:11 EDT
Description of problem:

Using the rpm for the Speedtouch USB ADSL drivers at
http://themes.freshmeat.net/projects/gplspeedtouch/?topic_id=20%2C87%2C136%2C150%2C861
if the service is restarted using "service speedtouch restart", then the service
fails to restart, and a message is recorded in /var/log/messages stating:
kernel BUG at slab.c:815! Further attempts state that ADSL modem cannot be found
and a reboot is required to start the service again. 

This was known to work with version 2.4.18-27.8.0 of the kernel.


Version-Release number of selected component (if applicable): kernel-2.4.20-13.8


How reproducible: Not tried to reproduce. 


Steps to Reproduce:
Unable to reproduce as system is production and kernel was subsequently
downgraded to 2.4.18-27.8.0 as a workaround.
    
Actual results:
See above.

Expected results:
ADSL service should restart successfully.

Additional info:

Output from /var/log/messages:

Jun  4 06:56:00 glenmorangie pppd[976]: Terminating on signal 15.
Jun  4 06:56:00 glenmorangie pppoa3[979]: Received signal 15 (thread 16384)  
Jun  4 06:56:00 glenmorangie pppoa3[979]: Woken by a sem_post event -> Exiting 
Jun  4 06:56:00 glenmorangie pppoa3[979]: Read from ppp Canceled
Jun  4 06:56:00 glenmorangie pppoa3[979]: Write to ppp Canceled
Jun  4 06:56:00 glenmorangie pppoa3[979]: Exiting
Jun  4 06:56:00 glenmorangie pppd[976]: Modem hangup
Jun  4 06:56:00 glenmorangie pppd[976]: Connection terminated.
Jun  4 06:56:00 glenmorangie pppd[976]: Connect time 16576.6 minutes.
Jun  4 06:56:00 glenmorangie pppd[976]: Sent 108052570 bytes, received 405141317
bytes.
Jun  4 06:56:00 glenmorangie pppd[976]: Exit.
Jun  4 06:56:00 glenmorangie /etc/hotplug/net.agent: NET unregister event not
supported
Jun  4 06:56:02 glenmorangie kernel: N_HDLC: line discipline unregistered
Jun  4 06:56:02 glenmorangie kernel: usb.c: USB disconnect on device 00:07.2-0
address 1
Jun  4 06:56:02 glenmorangie kernel: usb.c: USB disconnect on device 00:07.2-2
address 2
Jun  4 06:56:02 glenmorangie kernel: usb.c: USB bus 1 deregistered
Jun  4 06:56:02 glenmorangie kernel: usb.c: USB disconnect on device 00:07.3-0
address 1
Jun  4 06:56:02 glenmorangie kernel: usb.c: USB bus 2 deregistered
Jun  4 06:56:02 glenmorangie kernel: kmem_cache_destroy: Can't free all objects
c25a5b4c
Jun  4 06:56:02 glenmorangie kernel: uhci: not all urb_priv's were freed
Jun  4 06:56:09 glenmorangie kernel: uhci.c: USB Universal Host Controller
Interface driver v1.1
Jun  4 06:56:09 glenmorangie kernel: ------------[ cut here ]------------
Jun  4 06:56:09 glenmorangie kernel: kernel BUG at slab.c:815!
Jun  4 06:56:09 glenmorangie kernel: invalid operand: 0000
Jun  4 06:56:09 glenmorangie kernel: uhci ip_nat_ftp ppp_synctty ppp_generic
slhc parport_pc lp parport autofs ne2k-pci 8390 ipt_state ipt_LOG ipt_REJECT
ipt_MASQUERADE iptable_nat ip_conntrack_f
Jun  4 06:56:09 glenmorangie kernel: CPU:    0
Jun  4 06:56:09 glenmorangie kernel: EIP:    0010:[<c01336dd>]    Not tainted
Jun  4 06:56:09 glenmorangie kernel: EFLAGS: 00010246
Jun  4 06:56:09 glenmorangie kernel: 
Jun  4 06:56:09 glenmorangie kernel: EIP is at kmem_cache_create [kernel] 0x2bd
(2.4.20-13.8)
Jun  4 06:56:09 glenmorangie kernel: eax: 00000000   ebx: c25a5c90   ecx:
c25a5c88   edx: c25a5bb0
Jun  4 06:56:09 glenmorangie kernel: esi: c25a5baa   edi: e084830f   ebp:
c25a5bb0   esp: c92ffed0
Jun  4 06:56:09 glenmorangie kernel: ds: 0018   es: 0018   ss: 0018
Jun  4 06:56:09 glenmorangie kernel: Process modprobe (pid: 4663,
stackpage=c92ff000)
Jun  4 06:56:09 glenmorangie kernel: Stack: 00000000 0000003c 00000000 c92ffee8
c25a5cb0 fffffffc 00000038 fffffff4 
Jun  4 06:56:09 glenmorangie kernel:        00000001 00000001 e0843000 e0847dc5
e0848301 0000003c 00000040 00000000 
Jun  4 06:56:09 glenmorangie kernel:        00000000 00000000 ffffffea c011b8e2
e0843060 080bd9d8 00007010 e0849250 
Jun  4 06:56:09 glenmorangie kernel: Call Trace:   [<e0847dc5>] uhci_hcd_init
[uhci] 0xc5 (0xc92ffefc))
Jun  4 06:56:09 glenmorangie kernel: [<e0848301>] .rodata.str1.1 [uhci] 0x3e1
(0xc92fff00))
Jun  4 06:56:09 glenmorangie kernel: [<c011b8e2>] sys_init_module [kernel] 0x4d2
(0xc92fff1c))
Jun  4 06:56:09 glenmorangie kernel: [<e0843060>]
__insmod_uhci_O/lib/modules/2.4.20-13.8/kernel/drivers/usb/host/uhci.o_M3EBFC8C9_V132116
[uhci] 0x60 (0xc92fff20))
Jun  4 06:56:09 glenmorangie kernel: [<e0849250>] .kmodtab [uhci] 0x0 (0xc92fff2c))
Jun  4 06:56:09 glenmorangie kernel: [<e0843060>]
__insmod_uhci_O/lib/modules/2.4.20-13.8/kernel/drivers/usb/host/uhci.o_M3EBFC8C9_V132116
[uhci] 0x60 (0xc92fff58))
Jun  4 06:56:09 glenmorangie kernel: [<c0108dff>] system_call [kernel] 0x33
(0xc92fffc0))
Jun  4 06:56:09 glenmorangie kernel: 
Jun  4 06:56:09 glenmorangie kernel: 
Jun  4 06:56:09 glenmorangie kernel: Code: 0f 0b 2f 03 a7 53 25 c0 8b 01 89 ca
89 c1 0f 0d 00 81 fa 84
Comment 1 Alan Cox 2003-06-05 15:51:12 EDT
We don't support third party modules. Please ask the driver maintainers.

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