Bug#510859: zaptel: rmmod of zaphfc gives kernel stack trace

[stan at saticed.me.uk]

Package: zaptel
Version: 1:1.4.11~dfsg-3
Severity: normal

rmmod of zaphfc gives:

Jan  5 12:26:13 tiber kernel: [184286.468286] zaphfc: stop
Jan  5 12:26:13 tiber kernel: [184286.468286] zaphfc: shutting down card at e0a60000.
Jan  5 12:26:13 tiber kernel: [184286.496037] ------------[ cut here ]------------
Jan  5 12:26:13 tiber kernel: [184286.496060] WARNING: at arch/x86/kernel/smp.c:207 
native_smp_call_function_mask+0x2b/0x123()
Jan  5 12:26:13 tiber kernel: [184286.496091] Modules linked in: tun ipt_REJECT nf_nat_ftp nf_conntrack_ftp xt_state 
xt_tcpudp iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack iptable_filter ip_tables x_tables ipv6 
dm_snapshot dm_mirror dm_log dm_mod zaphfc(-) zaptel crc_ccitt oslec ide_generic snd_mpu401 snd_cs4232 snd_opl3_lib 
snd_hwdep snd_cs4231_lib parport_pc parport ns558 gameport snd_mpu401_uart snd_rawmidi snd_seq_device serio_raw psmouse 
snd_pcsp snd_intel8x0 snd_ac97_codec shpchp pci_hotplug ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc button 
i2c_nforce2 i2c_core nvidia_agp agpgart evdev ext3 jbd mbcache ide_cd_mod cdrom ata_generic sd_mod amd74xx floppy sata_sil 
3c59x mii libata scsi_mod dock ohci1394 ieee1394 ide_pci_generic ide_core forcedeth ehci_hcd ohci_hcd usbcore thermal 
processor fan thermal_sys raid1 md_mod
Jan  5 12:26:13 tiber kernel: [184286.496451] Pid: 24979, comm: rmmod Not tainted 2.6.26-1-686 #1
Jan  5 12:26:13 tiber kernel: [184286.496476]  [<c012256f>] warn_on_slowpath+0x40/0x66
Jan  5 12:26:13 tiber kernel: [184286.496512]  [<c01344c2>] ktime_get_ts+0x22/0x49
Jan  5 12:26:13 tiber kernel: [184286.496535]  [<c01344f6>] ktime_get+0xd/0x21
Jan  5 12:26:13 tiber kernel: [184286.496556]  [<c01190e6>] hrtick_start_fair+0xeb/0x12c
Jan  5 12:26:13 tiber kernel: [184286.496583]  [<c01f35f7>] vgacon_scroll+0x184/0x19f
Jan  5 12:26:13 tiber kernel: [184286.496612]  [<c0134ee5>] atomic_notifier_call_chain+0x9/0xc
Jan  5 12:26:13 tiber kernel: [184286.496639]  [<c0119d2e>] dequeue_entity+0x13/0x9b
Jan  5 12:26:13 tiber kernel: [184286.496661]  [<c0119c1f>] __dequeue_entity+0x1f/0x71
Jan  5 12:26:13 tiber kernel: [184286.496685]  [<c010296e>] __switch_to+0xa5/0x125
Jan  5 12:26:13 tiber kernel: [184286.496707]  [<c011d3bd>] hrtick_set+0x7a/0xd8
Jan  5 12:26:13 tiber kernel: [184286.496730]  [<c010ef31>] native_smp_call_function_mask+0x2b/0x123
Jan  5 12:26:13 tiber kernel: [184286.496756]  [<c024cd12>] pci_conf1_write+0x99/0xa7
Jan  5 12:26:13 tiber kernel: [184286.496782]  [<c010f476>] do_flush_tlb_all+0x0/0x3c
Jan  5 12:26:13 tiber kernel: [184286.496804]  [<c010f476>] do_flush_tlb_all+0x0/0x3c
Jan  5 12:26:13 tiber kernel: [184286.496826]  [<c010f73b>] smp_call_function+0x16/0x1b
Jan  5 12:26:13 tiber kernel: [184286.496849]  [<c0126422>] on_each_cpu+0x10/0x31
Jan  5 12:26:13 tiber kernel: [184286.496872]  [<c010f4c5>] flush_tlb_all+0x13/0x15
Jan  5 12:26:13 tiber kernel: [184286.496893]  [<c0169437>] remove_vm_area+0x2f/0x4b
Jan  5 12:26:13 tiber kernel: [184286.496917]  [<c0115f7f>] iounmap+0x86/0xa0
Jan  5 12:26:13 tiber kernel: [184286.496940]  [<e0a5729e>] hfc_shutdownCard2+0x76/0xb7 [zaphfc]
Jan  5 12:26:13 tiber kernel: [184286.496968]  [<e0a57333>] cleanup_module+0x2c/0x58 [zaphfc]
Jan  5 12:26:13 tiber kernel: [184286.496991]  [<c013fd0a>] sys_delete_module+0x194/0x1de
Jan  5 12:26:13 tiber kernel: [184286.497018]  [<c01657ad>] remove_vma+0x3e/0x43
Jan  5 12:26:13 tiber kernel: [184286.497043]  [<c0166124>] do_munmap+0x181/0x19b
Jan  5 12:26:13 tiber kernel: [184286.497071]  [<c0103853>] sysenter_past_esp+0x78/0xb1
Jan  5 12:26:13 tiber kernel: [184286.497103]  =======================
Jan  5 12:26:13 tiber kernel: [184286.497119] ---[ end trace 2cc0f1e276002873 ]---
Jan  5 12:26:13 tiber kernel: [184286.497147] ACPI: PCI interrupt for device 0000:01:07.0 disabled
Jan  5 12:26:13 tiber kernel: [184286.497259] unregistered from zaptel.
Jan  5 12:26:13 tiber kernel: [184286.497277] zaphfc: freed one card.

System appears to still operate normally however.

zaphfc module was built with m-a.

-- System Information:
Debian Release: 5.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-1-686 (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

Versions of packages zaptel depends on:
ii  fxload                  0.0.20020411-1.1 Firmware download to EZ-USB device
ii  libc6                   2.7-16           GNU C Library: Shared libraries
ii  libnewt0.52             0.52.2-11.3      Not Erik's Windowing Toolkit - tex
ii  libtonezone1            1:1.4.11~dfsg-3  tonezone library (runtime)
ii  libusb-0.1-4            2:0.1.12-13      userspace USB programming library
ii  procps                  1:3.2.7-9        /proc file system utilities

zaptel recommends no packages.

zaptel suggests no packages.

-- no debconf information