Hi,
Today came a new kernel update (2.6.32-279.1.1.el6). Since then, my
wireless works weird and keeps dropping the connection.
System:
SL 6.2 x64 up-to-date
Hardware:
0b:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG
[Golan] Network Connection (rev 02)
Module remove and reload doesn't help. I also had a kernel panic after
the first reboot with the new kernel a couple of minutes later.
Couldn't find any trace of it in the kernel log though, so I can't post
it here. And also I've never had any kind of problem with this very
hardware since SL 6.2 beta.
$ lsmod | grep -i iw
iwl3945 74625 0
iwl_legacy 72808 1 iwl3945
mac80211 213575 2 iwl3945,iwl_legacy
cfg80211 188399 3 iwl3945,iwl_legacy,mac80211
Any idea for a resolution?
Thanks,
Andras
Last part of the dmesg log:
------------------------------------------
DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:0b:00.0
DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:0b:00.0
DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:0b:00.0
DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:0b:00.0
------------[ cut here ]------------
WARNING: at drivers/net/wireless/iwlegacy/iwl-tx.c:619
iwl_legacy_tx_cmd_complete+0x3b1/0x3f0 [iwl_legacy]() (Tainted:
G W --------------- ) Hardware name: Inspiron 1525 wrong
command queue 0 (should be 4), sequence 0x0 readp=0 writep=0 Modules
linked in: iwl3945 iwl_legacy mac80211 cfg80211 cryptd aes_x86_64
aes_generic fuse autofs4 sunrpc bnx2fc cnic uio fcoe libfcoe libfc
scsi_transport_fc scsi_tgt vboxpci(U) vboxnetadp(U) vboxnetflt(U)
vboxdrv(U) 8021q garp stp llc cpufreq_ondemand acpi_cpufreq freq_table
mperf ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter
ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state
nf_conntrack ip6table_filter ip6_tables ipv6 uinput r592 memstick
microcode dell_laptop dcdbas sg serio_raw i2c_i801 iTCO_wdt
iTCO_vendor_support arc4 rfkill sky2 snd_hda_codec_idt
snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_seq
snd_seq_device snd_pcm snd_timer snd soundcore snd_page_alloc ext4
mbcache jbd2 sdhci_pci sdhci mmc_core firewire_ohci firewire_core
crc_itu_t sd_mod crc_t10dif sr_mod cdrom wmi ahci pata_acpi ata_generic
ata_piix i915 drm_kms_helper drm i2c_algo_bit i2c_core video output
dm_mirror dm_region_hash dm_log dm_mod [last unloaded: cfg80211] Pid:
2751, comm: Xorg Tainted: G W ---------------
2.6.32-279.1.1.el6.x86_64 #1 Call Trace: <IRQ> [<ffffffff8106b747>] ?
warn_slowpath_common+0x87/0xc0 [<ffffffff8106b836>] ?
warn_slowpath_fmt+0x46/0x50 [<ffffffffa07b3ed1>] ?
iwl_legacy_tx_cmd_complete+0x3b1/0x3f0 [iwl_legacy]
[<ffffffff812868cc>] ? is_swiotlb_buffer+0x3c/0x50
[<ffffffff81286c74>] ? unmap_single+0x34/0x70 [<ffffffffa0870d91>] ?
iwl3945_irq_tasklet+0x221/0x7a0 [iwl3945] [<ffffffff810742d5>] ?
tasklet_action+0xe5/0x120 [<ffffffffa07ae8e9>] ?
iwl_legacy_isr+0xd9/0x190 [iwl_legacy] [<ffffffff81073ec1>] ?
__do_softirq+0xc1/0x1e0 [<ffffffff810db810>] ?
handle_IRQ_event+0x60/0x170 [<ffffffff81073f1f>] ?
__do_softirq+0x11f/0x1e0 [<ffffffff8100c24c>] ? call_softirq+0x1c/0x30
[<ffffffff8100de85>] ? do_softirq+0x65/0xa0 [<ffffffff81073ca5>] ?
irq_exit+0x85/0x90 [<ffffffff81505b05>] ? do_IRQ+0x75/0xf0
[<ffffffff8100ba53>] ? ret_from_intr+0x0/0x11 <EOI>
[<ffffffff81500177>] ? _spin_unlock_irqrestore+0x17/0x20
[<ffffffff8105335e>] ? __wake_up_sync_key+0x5e/0x80
[<ffffffff8142b8c4>] ? sock_def_readable+0x44/0x80
[<ffffffff814cc959>] ? unix_stream_sendmsg+0x249/0x420
[<ffffffff8142a477>] ? sock_aio_write+0x167/0x180
[<ffffffff8142a310>] ? sock_aio_write+0x0/0x180 [<ffffffff8117ac3b>] ?
do_sync_readv_writev+0xfb/0x140 [<ffffffff810920d0>] ?
autoremove_wake_function+0x0/0x40 [<ffffffff8121fd5f>] ?
selinux_file_permission+0xbf/0x150 [<ffffffff8105b483>] ?
perf_event_task_sched_out+0x33/0x80 [<ffffffff81213146>] ?
security_file_permission+0x16/0x20 [<ffffffff8117bce6>] ?
do_readv_writev+0xd6/0x1f0 [<ffffffff814fd840>] ?
thread_return+0x4e/0x76e [<ffffffff8117be46>] ? vfs_writev+0x46/0x60
[<ffffffff8117bf71>] ? sys_writev+0x51/0xb0 [<ffffffff8150095e>] ?
do_device_not_available+0xe/0x10 [<ffffffff8100b0f2>] ?
system_call_fastpath+0x16/0x1b ---[ end trace 712221797d4b1f79 ]--- iwl
data: 00000000: 00 00 00 00 00 00 00 00 50 10 3c 1b 01 88 ff
ff ........P.<..... iwl data: 00000010: 00 33 71 02 01 88 ff ff 19 00
00 00 00 00 00 00 .3q............. DMA: Out of SW-IOMMU space for 4096
bytes at device 0000:0b:00.0 ieee80211 phy0: wlan0: No probe response
from AP 00:06:4f:98:41:7d after 500ms, disconnecting. cfg80211: Calling
CRDA to update world regulatory domain cfg80211: World regulatory
domain updated: cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp) cfg80211: (2402000 KHz - 2472000 KHz @
40000 KHz), (300 mBi, 2000 mBm) cfg80211: (2457000 KHz - 2482000
KHz @ 20000 KHz), (300 mBi, 2000 mBm) cfg80211: (2474000 KHz -
2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) cfg80211: (5170000
KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211:
(5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211:
Calling CRDA for country: HU cfg80211: Regulatory domain changed to
country: HU cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp) cfg80211: (2402000 KHz - 2482000 KHz @
40000 KHz), (N/A, 2000 mBm) cfg80211: (5170000 KHz - 5250000 KHz @
40000 KHz), (N/A, 2000 mBm) cfg80211: (5250000 KHz - 5330000 KHz @
40000 KHz), (N/A, 2000 mBm) cfg80211: (5490000 KHz - 5710000 KHz @
40000 KHz), (N/A, 2700 mBm)
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