Bug 83363
| Summary: | (NET AIRO)airo.o in kernel 2.4.20 series is crashing. | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Ivo Sarak <ivo> |
| Component: | kernel | Assignee: | Jeff Garzik <jgarzik> |
| Status: | CLOSED WONTFIX | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 9 | CC: | gbailey, jonathan, jrobiso2, murtuza, peterm, rkinder, r_kinder |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2004-09-30 15:40:29 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 79579, 100644 | ||
Hm, looks like the driver didn't handle the BAP error right. What is this BAP and BAP error? What may cause it? From http://www.kismetwireless.net/documentation.shtml : "'cisco_cvs': Linux kernel 2.4.20, sourceforge.net CVS driver release Capture interface: wifiX Notes: The new drivers use the interface ethX for normal operation and wifiX for raw packet capturing. The interface for Kismet should be set to wifiX. These drivers have a history of locking up under high loads and when entering/leaving rfmon mode. " As the newer RedHat Linux kernels are 2.4.20 then maybe that is why it crashed on me and perhaps it will crash on other reasons as well? [root@ranume root]# uname -a Linux ranume 2.4.20-8 #1 Thu Mar 13 16:42:56 EST 2003 i686 i686 i386 GNU/Linux [root@ranume root]# cat /proc/version Linux version 2.4.20-8 (bhcompile.redhat.com) (gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #1 Thu Mar 13 16:42:56 EST 2003 Apr 7 17:30:01 ranume kernel: airo: BAP error 4000 2 Apr 7 17:30:01 ranume kernel: Warning: kfree_skb passed an skb still on a list (from c011f338). Apr 7 17:30:01 ranume kernel: ------------[ cut here ]------------ Apr 7 17:30:01 ranume kernel: kernel BUG at skbuff.c:315! Apr 7 17:30:01 ranume kernel: invalid operand: 0000 Apr 7 17:30:01 ranume kernel: ipt_mac cls_route cls_u32 cls_fw sch_prio sch_sfq sch_tbf sch_cbq ipt_MARK iptable_mangle ipt_state iptable_filter ipt_MASQUERADE ip_conntrack_irc ip_nat_irc Apr 7 17:30:01 ranume kernel: CPU: 0 Apr 7 17:30:01 ranume kernel: EIP: 0060:[<c01d8a1f>] Not tainted Apr 7 17:30:01 ranume kernel: EFLAGS: 00010286 Apr 7 17:30:01 ranume kernel: Apr 7 17:30:02 ranume kernel: EIP is at __kfree_skb [kernel] 0x12f (2.4.20-8) Apr 7 17:30:02 ranume kernel: eax: 00000045 ebx: cb47d4e0 ecx: 00000001 edx: cec26000 Apr 7 17:30:02 ranume kernel: esi: c132ff98 edi: c02eb8f0 ebp: c132e000 esp: c132ff84 Apr 7 17:30:02 ranume kernel: ds: 0068 es: 0068 ss: 0068 Apr 7 17:30:02 ranume kernel: Process keventd (pid: 2, stackpage=c132f000) Apr 7 17:30:02 ranume kernel: Stack: c0255440 c011f338 c132ff98 c011f338 cb47d4e0 cd3742e4 cd3742e4 c01281b0 Apr 7 17:30:02 ranume kernel: 00000000 c01282a5 c02eb8f0 00000001 00000000 c0349b00 00010000 00000000 Apr 7 17:30:02 ranume kernel: c01281b0 00000000 c03441fc 00000000 c132e000 00000000 00000000 c01281b0 Apr 7 17:30:02 ranume kernel: Call Trace: [<c011f338>] __run_task_queue [kernel] 0x48 (0xc132ff88)) Apr 7 17:30:02 ranume kernel: [<c011f338>] __run_task_queue [kernel] 0x48 (0xc132ff90)) Apr 7 17:30:02 ranume kernel: [<c01281b0>] context_thread [kernel] 0x0 (0xc132ffa0)) Apr 7 17:30:02 ranume kernel: [<c01282a5>] context_thread [kernel] 0xf5 (0xc132ffa8)) Apr 7 17:30:02 ranume kernel: [<c01281b0>] context_thread [kernel] 0x0 (0xc132ffc4)) Apr 7 17:30:02 ranume kernel: [<c01281b0>] context_thread [kernel] 0x0 (0xc132ffe0)) Apr 7 17:30:02 ranume kernel: [<c01072ad>] kernel_thread_helper [kernel] 0x5 (0xc132fff0)) Apr 7 17:30:02 ranume kernel: Apr 7 17:30:02 ranume kernel: Apr 7 17:30:02 ranume kernel: Code: 0f 0b 3b 01 33 42 25 c0 58 5a 8b 5c 24 08 e9 ce fe ff ff 8d [root@ranume root]# lsmod Module Size Used by Not tainted ipt_mac 1144 42 (autoclean) cls_route 5112 0 (unused) cls_u32 5916 1 cls_fw 3288 0 (unused) sch_prio 3712 0 (unused) sch_sfq 4032 0 (unused) sch_tbf 3360 1 sch_cbq 14368 1 ipt_MARK 1336 1 (autoclean) iptable_mangle 2680 1 (autoclean) ipt_state 1048 1 (autoclean) iptable_filter 2316 1 (autoclean) ipt_MASQUERADE 2072 4 (autoclean) ip_conntrack_irc 3984 1 (autoclean) ip_nat_irc 3152 0 (unused) ip_conntrack_ftp 5008 1 (autoclean) ip_nat_ftp 3888 0 (unused) iptable_nat 20472 3 [ipt_MASQUERADE ip_nat_irc ip_nat_ftp] ip_conntrack 25888 4 [ipt_state ipt_MASQUERADE ip_conntrack_irc ip_nat_irc ip_conntrack_ftp ip_nat_ftp iptable_nat] ip_tables 14488 9 [ipt_mac ipt_MARK iptable_mangle ipt_state iptable_filter ipt_MASQUERADE iptable_nat] airo 45032 2 3c59x 29360 1 ext3 64704 5 jbd 47828 5 [ext3] [root@ranume root]# ... 2.4.18 series is working fine. What is this bug 79579? Any hope to get this fixed or at least confirmed? Any Idea if or when this is going to be fixed in the kernel for RH 9? I'm almost the same problems with RH9, first my keyboard stops working, but it appears that I can still do things like check e-mail with the mouse. The last time the keyboard stopped working I tried connecting to my laptop from the network but it was no longer on it, one time it froze up everything and I had to reset it. kernel-2.4.20-9 kernel-pcmcia-cs-3.1.31-13 Message from /var/log/messages May 14 13:51:30 localhost kernel: airo: BAP error 4000 2 May 14 13:51:31 localhost kernel: Warning: kfree_skb passed an skb still on a list (from c01219fa). May 14 13:51:31 localhost kernel: ------------[ cut here ]------------ May 14 13:51:31 localhost kernel: kernel BUG at skbuff.c:315! May 14 13:51:31 localhost kernel: invalid operand: 0000 May 14 13:51:31 localhost kernel: nls_iso8859-1 nls_cp437 vfat fat ide-cd cdrom ymfpci ac97_codec uart401 sound soundcore parport_pc lp parport autofs airo_cs airo ds yenta_socket pcmcia_core May 14 13:51:31 localhost kernel: CPU: 0 May 14 13:51:31 localhost kernel: EIP: 0060:[<c01f1994>] Not tainted May 14 13:51:31 localhost kernel: EFLAGS: 00010282 May 14 13:51:31 localhost kernel: May 14 13:51:31 localhost kernel: EIP is at __kfree_skb [kernel] 0x144 (2.4.20-9) May 14 13:51:31 localhost kernel: eax: 00000045 ebx: c36c8980 ecx: 00000001 edx: c978e000 May 14 13:51:31 localhost kernel: esi: c1823f90 edi: c1822306 ebp: c1822000 esp: c1823f78 May 14 13:51:31 localhost kernel: ds: 0068 es: 0068 ss: 0068 May 14 13:51:31 localhost kernel: Process keventd (pid: 2, stackpage=c1823000) May 14 13:51:32 localhost kernel: Stack: c0275480 c01219fa c1822306 c1823f90 c01219fa c36c8980 ca56c2e4 ca56c2e4 May 14 13:51:32 localhost kernel: 00000001 c025e19b c012b9a3 c030ca70 c1823fb0 00000000 00000001 00000000 May 14 13:51:32 localhost kernel: cbfa9f90 00010000 00000000 c012b890 00000000 c036945c 00000000 c1822000 May 14 13:51:32 localhost kernel: Call Trace: [<c01219fa>] __run_task_queue [kernel] 0x5a (0xc1823f7c)) May 14 13:51:32 localhost kernel: [<c01219fa>] __run_task_queue [kernel] 0x5a (0xc1823f88)) May 14 13:51:32 localhost kernel: [<c012b9a3>] context_thread [kernel] 0x113 (0xc1823fa0)) May 14 13:51:32 localhost kernel: [<c012b890>] context_thread [kernel] 0x0 (0xc1823fc4)) May 14 13:51:32 localhost kernel: [<c012b890>] context_thread [kernel] 0x0 (0xc1823fe0)) May 14 13:51:32 localhost kernel: [<c010742d>] kernel_thread_helper [kernel] 0x5 (0xc1823ff0)) May 14 13:51:33 localhost kernel: May 14 13:51:33 localhost kernel: May 14 13:51:33 localhost kernel: Code: 0f 0b 3b 01 73 42 27 c0 8b 5c 24 14 e9 be fe ff ff 8d 74 26 May 14 13:51:33 localhost kernel: <3>airo: BAP error 4000 2 *** Bug 88675 has been marked as a duplicate of this bug. *** *** Bug 97187 has been marked as a duplicate of this bug. *** According to http://sourceforge.net/tracker/? atid=382983&group_id=24926&func=browse this is related to the firmware version on the card. (i.e. 5.X does this, 4.25.30 does not). However, I run with 4.25.30 firware and it's happening to me. The author of this driver appears to have abandoned it. (Ben Reed) He told me himself he hasn't messed with it in a year. One other person at that URL suggests that the drivers from Cisco don't have this problem. I have not yet been able to verify that, but if true, are they GPL? Can our next kernel update have the cisco drivers? I managed to reboot the box today and in 4 hours there was "Kernel PANIC!" all over the place - somehow kernel-2.4.20-18.9 has managed to to set itself as default kernel. Can anyone confirm if some newer release (2.4/2.6) of kernel has the aironet driver fixed or when it may happen? Javier Achirica and Ben Reed worked on it in the last few days. They have posted a 1.53 version of airo.c at sourceforge, in the cvs tree, not in the "files" section. According to Javier, he found a race in the transmission path. Download airo.c and airo.h, put them in the right place in your kernel src tree, make modules, and copy the resulting airo.o into your /lib/modules. Let's hope the major vendors pick up on this fix (if it works) and update the kernel rpm's. I can confirm that for my situation (vnc via the wireless interface to a laptop
also on the wireless) the updated drivers from the sourceforge page work. I have
been using vnc via the wireless interface now for the past 20 minutes (usually
crashes the kernel after ~2 seconds of heavy traffic).
My method for building:
1) Get kernel-2.4.20-8.src.rpm, transfer to the affected machine (could be
problematic if the airo wireless is the only network interface ;) - in this
case, 'split' and 'cat' are your friends)
2) Install the rpm: rpm -Uvh kernel-2.4.20-8.src.rpm
3) cd /usr/src/redhat/SPECS
4) sudo rpmbuild -bp kernel-2.4.spec (patch a source tree)
5) cd /usr/src/redhat/BUILD/kernel-2.4.20/linux-2.4.20
6) Edit the top level makefile, change 'EXTRAVERSION' from '-pre3' to '-8'
7) Copy the appropriate config from /usr/src/redhat/SOURCES - eg:
cp /usr/src/redhat/SOURCES/kernel-2.4.20-athlon.config
/usr/src/redhat/BUILD/kernel-2.4.20/linux-2.4.20/.config
8) Get the airo files from sourceforge cvs: see
http://sourceforge.net/cvs/?group_id=24926 for instructions on how to do this.
The module you want is 'airo-linux'
9) Copy the files from the 'airo-linux/kernel' directory to
/usr/src/redhat/BUILD/kernel-2.4.20/linux-2.4.20/drivers/net/wireless
10) build dependencies: make dep
11) build modules: make modules
12) Copy the module object files into the appropriate directory: cp
/usr/src/redhat/BUILD/kernel-2.4.20/linux-2.4.20/drivers/net/wireless/airo*.o
/lib/modules/2.4.20-8/kernel/drivers/net/wireless
*NOTE: you may want to back up the original driver object files first*
13) Bring the wireless interface down (/sbin/ifdown ethN)
14) Unload the old modules: /sbin/rmmod airo airo_cs
15) /sbin/depmod
16) Load the new modules (in my case, /sbin/cardctl eject 0; /sbin/cardctl insert 0)
Test it out!
Hope this helps.
Regards,
Richard
I grabbed the 1.53 after Javier fixed it. Copied airo.c and airo.h to /usr/src/linux/blah/blah/blah Edit airo.c to undefine MICSUPPORT (If you want it, get the other .c and .h files from the CVS tree) make modules copied the resulting airo.o up to /lib/modules Works like a charm, haven't had a single problem since doing this. Kernel is 2.4.20-86 Uniprocessor, laptop, Dell Latitude C600 This may or may not be relevant. I never had this problem until I started to run Fluxbox with GKRellM. I have a Dell Inspiron 4150 and an Airo 350. My co-worker has a Sony Vaio R505-EL and he *also* did not have this problem until he started running Flux / GKRellM. We both ditched GKRellM and have never had the problem again. I am somewhat concerned that the major vendors appear to not have picked up on the update. Last time I checked, everyone's latest distro shipped with 0.6, STILL. Anyone have a clue why this is? We hesitate to pick up drivers that are not included in the upstream kernel... I'm sure the others have the same or a very similar policy My kernel RH9 2.4.20-31.9 reports this error when i runn snmpd and mrtg 5min query from another point. Bug crash afther 12 hours. Thanks for the bug report. However, Red Hat no longer maintains this version of the product. Please upgrade to the latest version and open a new bug if the problem persists. The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, and if you believe this bug is interesting to them, please report the problem in the bug tracker at: http://bugzilla.fedora.us/ |
Description of problem: After error message "kernel BUG at skbuff.c:315!" all wireless traffic was dropped. Version-Release number of selected component (if applicable): RedHat Linux Public Beta Phoebe 8.0.93. How reproducible: Haven't tried... Steps to Reproduce: 1. Upgrade RedHat 8.0 to Phoebe Beta 8.0.93; 2. Use Cisco 342 wireless adapter; Actual results: Traffic was dropped after 12 hours. Expected results: Nothing similar. Additional info: [root@machine root]# dmesg Linux version 2.4.20-2.24 (bhcompile.redhat.com) (gcc version 3.2.1 20021207 (Red Hat Linux 8.0 3.2.1-2)) #1 Mon Jan 20 17:51:45 EST 2003 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 0000000000f00000 (usable) BIOS-e820: 0000000000f00000 - 0000000001000000 (reserved) BIOS-e820: 0000000001000000 - 000000000f800000 (usable) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) 248MB LOWMEM available. On node 0 totalpages: 63488 zone(0): 4096 pages. zone(1): 59392 pages. zone(2): 0 pages. Kernel command line: ro root=/dev/hda2 Initializing CPU#0 Detected 666.717 MHz processor. Speakup v-1.00 CVS: Fri Dec 13 20:12:48 EST 2002 : initialized Console: colour VGA+ 80x25 Calibrating delay loop... 1330.38 BogoMIPS Memory: 244028k/253952k available (1248k kernel code, 6528k reserved, 1041k data, 156k init, 0k highmem) Checking if this processor honours the WP bit even in supervisor mode... Ok. Dentry cache hash table entries: 32768 (order: 6, 262144 bytes) Inode cache hash table entries: 16384 (order: 5, 131072 bytes) Mount cache hash table entries: 512 (order: 0, 4096 bytes) Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes) Page-cache hash table entries: 65536 (order: 6, 262144 bytes) CPU: L1 I Cache: 64K (32 bytes/line), D cache 64K (32 bytes/line) CPU: L2 Cache: 64K (32 bytes/line) CPU: After generic, caps: 00803135 80803035 00000000 00000000 CPU: Common caps: 00803135 80803035 00000000 00000000 CPU: Centaur VIA Samuel 2 stepping 02 Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX mtrr: v1.40 (20010327) Richard Gooch (rgooch.au) mtrr: detected mtrr type: Intel PCI: PCI BIOS revision 2.10 entry at 0xfb380, last bus=1 PCI: Using configuration type 1 PCI: Probing PCI hardware PCI: Using IRQ router VIA [1106/0686] at 00:07.0 isapnp: Scanning for PnP cards... isapnp: No Plug & Play device found speakup: initialized device: /dev/synth, node (MAJOR 10, MINOR 25) Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16) Starting kswapd VFS: Disk quotas vdquot_6.5.1 pty: 512 Unix98 ptys configured Serial driver version 5.05c (2001-07-08) with MANY_PORTS MULTIPORT SHARE_IRQ SERIAL_PCI ISAPNP enabled ttyS0 at 0x03f8 (irq = 4) is a 16550A ttyS1 at 0x02f8 (irq = 3) is a 16550A Real Time Clock Driver v1.10e Floppy drive(s): fd0 is 1.44M FDC 0 is a post-1991 82077 NET4: Frame Diverter 0.46 RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller at PCI slot 00:07.1 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:07.1 ide0: BM-DMA at 0xc000-0xc007, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xc008-0xc00f, BIOS settings: hdc:pio, hdd:pio hda: HITACHI_DK23DA-40, ATA DISK drive hda: DMA disabled blk: queue c03bdf20, I/O limit 4095Mb (mask 0xffffffff) ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: host protected area => 1 hda: 78140160 sectors (40008 MB) w/2048KiB Cache, CHS=4864/255/63, UDMA(100) ide-floppy driver 0.99.newide Partition check: hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 > ide-floppy driver 0.99.newide md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27 md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP IP: routing cache hash table of 2048 buckets, 16Kbytes TCP: Hash tables configured (established 16384 bind 32768) Linux IP multicast router 0.06 plus PIM-SM NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. RAMDISK: Compressed image found at block 0 Freeing initrd memory: 135k freed VFS: Mounted root (ext2 filesystem). Journalled Block Device driver loaded kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. Freeing unused kernel memory: 156k freed ide: no cache flush required. ide: no cache flush required. EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,2), internal journal Adding Swap: 1076312k swap-space (priority -1) ide: no cache flush required. ide: no cache flush required. ide: no cache flush required. ide: no cache flush required. ide: no cache flush required. ide: no cache flush required. ide: no cache flush required. ide: no cache flush required. kjournald starting. Commit interval 5 seconds EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,1), internal journal EXT3-fs: mounted filesystem with ordered data mode. kjournald starting. Commit interval 5 seconds EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,3), internal journal EXT3-fs: mounted filesystem with ordered data mode. kjournald starting. Commit interval 5 seconds EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,5), internal journal EXT3-fs: mounted filesystem with ordered data mode. kjournald starting. Commit interval 5 seconds EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,6), internal journal EXT3-fs: mounted filesystem with ordered data mode. parport0: PC-style at 0x378 [PCSPP,EPP] parport_pc: Via 686A parallel port: io=0x378 ip_tables: (C) 2000-2002 Netfilter core team PCI: Found IRQ 11 for device 00:08.0 3c59x: Donald Becker and others. www.scyld.com/network/vortex.html See Documentation/networking/vortex.txt 00:08.0: 3Com PCI 3c905C Tornado at 0xd800. Vers LK1.1.18-ac 00:04:76:8e:0a:b0, IRQ 11 product code 4d57 rev 00.13 date 04-03-01 Internal config register is 1800000, transceivers 0xa. 8K byte-wide RAM 5:3 Rx:Tx split, autoselect/Autonegotiate interface. MII transceiver found at address 24, status 782d. Enabling bus-master transmits and whole-frame receives. 00:08.0: scatter/gather enabled. h/w checksums enabled divert: allocating divert_blk for eth0 ip_tables: (C) 2000-2002 Netfilter core team ip_tables: (C) 2000-2002 Netfilter core team airo: Probing for PCI adapters airo: Doing fast bap_reads divert: allocating divert_blk for eth1 divert: not allocating divert_blk for non-ethernet device wifi0 airo: MAC enabled eth1 0:40:96:35:53:77 airo: Doing fast bap_reads divert: allocating divert_blk for eth2 divert: not allocating divert_blk for non-ethernet device wifi1 airo: MAC enabled eth2 0:40:96:34:bd:dd airo: Finished probing for PCI adapters ip_conntrack version 2.1 (1984 buckets, 15872 max) - 292 bytes per conntrack ip_tables: (C) 2000-2002 Netfilter core team airo: BAP error 4000 2 Warning: kfree_skb passed an skb still on a list (from c011f128). ------------[ cut here ]------------ kernel BUG at skbuff.c:315! invalid operand: 0000 cls_route cls_u32 cls_fw sch_prio sch_sfq sch_tbf sch_cbq ipt_state iptable_filter ipt_MASQUERADE ip_conntrack_irc ip_nat_irc ip_conntrack_ftp ip_nat_ftp ipta CPU: 0 EIP: 0060:[<c01df47f>] Not tainted EFLAGS: 00010286 EIP is at __kfree_skb [kernel] 0x12f (2.4.20-2.24) eax: 00000045 ebx: caac87c0 ecx: 00000001 edx: ceb24000 esi: c132ff98 edi: c02f6c70 ebp: c132e000 esp: c132ff84 ds: 0068 es: 0068 ss: 0068 Process keventd (pid: 2, stackpage=c132f000) Stack: c025e5a0 c011f128 c132ff98 c011f128 caac87c0 cdbe42e4 cdbe42e4 c132e650 00000000 c0127955 c02f6c70 00000001 00000000 c0367b00 00010000 00000000 c0127860 00000000 c035a2c4 00000000 c132e000 00000000 00000000 c0127860 Call Trace: [<c011f128>] __run_task_queue [kernel] 0x48 (0xc132ff88)) [<c011f128>] __run_task_queue [kernel] 0x48 (0xc132ff90)) [<c0127955>] context_thread [kernel] 0xf5 (0xc132ffa8)) [<c0127860>] context_thread [kernel] 0x0 (0xc132ffc4)) [<c0127860>] context_thread [kernel] 0x0 (0xc132ffe0)) [<c01072ad>] kernel_thread_helper [kernel] 0x5 (0xc132fff0)) Code: 0f 0b 3b 01 93 d3 25 c0 58 5a 8b 5c 24 08 e9 ce fe ff ff 8d [root@machine grub]# cat /proc/version Linux version 2.4.20-2.24 (bhcompile.redhat.com) (gcc version 3.2.1 20021207 (Red Hat Linux 8.0 3.2.1-2)) #1 Mon Jan 20 17:51:45 EST 2003 [root@machine grub]# iwconfig lo no wireless extensions. eth0 no wireless extensions. Warning: Driver for device eth1 has been compiled with version 15 of Wireless Extension, while this program is using version 13. Some things may be broken... eth1 IEEE 802.11-DS ESSID:"NET2" Mode:Managed Frequency:2.412GHz Access Point: 00:02:2D:0D:47:40 Bit Rate:11Mb/s Tx-Power=12 dBm Sensitivity=0/65535 Retry limit:16 RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality:4/10 Signal level:-64 dBm Noise level:-256 dBm Rx invalid nwid:122036 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:802695 Missed beacon:19 wifi0 IEEE 802.11-DS ESSID:"NET2" Mode:Managed Frequency:2.412GHz Access Point: 00:02:2D:0D:47:40 Bit Rate:11Mb/s Tx-Power=12 dBm Sensitivity=0/65535 Retry limit:16 RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality:4/10 Signal level:-64 dBm Noise level:-256 dBm Rx invalid nwid:122036 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:802695 Missed beacon:19 eth2 IEEE 802.11-DS ESSID:"Net1" Mode:Managed Frequency:2.412GHz Access Point: 00:40:96:58:7D:28 Bit Rate:11Mb/s Tx-Power=12 dBm Sensitivity=0/65535 Retry limit:16 RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality:5/10 Signal level:-67 dBm Noise level:-256 dBm Rx invalid nwid:1 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:723 Missed beacon:0 wifi1 IEEE 802.11-DS ESSID:"Net1" Mode:Managed Frequency:2.412GHz Access Point: 00:40:96:58:7D:28 Bit Rate:11Mb/s Tx-Power=12 dBm Sensitivity=0/65535 Retry limit:16 RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality:5/10 Signal level:-67 dBm Noise level:-256 dBm Rx invalid nwid:1 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:723 Missed beacon:0 [root@machine grub]# rpm -qa|grep kernel kernel-2.4.18-19.8.0 kernel-pcmcia-cs-3.1.31-12 kernel-2.4.20-2.24 [root@machine grub]# rpm -qa|grep wireless wireless-tools-25-2 [root@machine grub]#