> tried at least 5 different versions. I have almost completely stopped > using hibernate (suspend only) on my system and have not seen the problem > in a long time and for my system at least, hibernate seems to be related I never thought it was a firmware issue before, so I never paid any attention to the firmware versions before. But now that I am back to 0.33, it looks stable – although it is just 24 hours since last problem, that is nevertheless towards the longer intervals. Usually it is just a couple of hours unless the workarounds are on, which they are not at the moment (because I wanted to test this). I never had any issues with hibernate or suspend and certainly neither was ever needed to trigger the bug. For example yesterday, I hit the bug after about 3 hours without ever putting the laptop off my lap meanwhile. > While the firmware may play a role in the problem, at its core, there [...] > to look at the Linux driver(s) for the flavor of PCI interface bus these > cards plug-in to and the particular chip sets used to implement this > bus on the known Lenovo machines having the problem (x201i, x200, ...). This is past my knowledge and understanding, but it seems reasonable enough. Is there anything I can do? If the pci bus is the reason, it might explain the random freezes I have been experiencing (see #575965 for details), too. Ok, so I just hit the problem while writing this up: 0.33 & 2.6.39 does not help. Attached is what happened when I turned the HW kill switch after the MAC went to unrecoverable deep sleep. Perhaps that backtrace can help figure this out. What is VERY strange here is the fact that I did not have this problem before going from 2.6.39 to 3.0.0, but not I have it even with 2.6.39! How can that be?!? What else is involved with talking to the wifi card except the kernel and the firmware? Do I need to downgrade iwconfig et al, too? This is *very* annoying. I now need to boot more than once a day compared to once every few months before! -Juha -- ----------------------------------------------- | Juha Jäykkä, juhaj@iki.fi | | http://www.maths.leeds.ac.uk/~juhaj | -----------------------------------------------
[75926.876147] ------------[ cut here ]------------ [75926.876171] WARNING: at /build/buildd-linux-2.6_2.6.39-2-amd64-kuqdRa/linux-2.6-2.6.39/debian/build/source_amd64_none/drivers/net/wireless/iwlwifi/iwl-core.c:1428 iwl_mac_remove_interface+0x3b/0x72 [iwlagn]() [75926.876176] Hardware name: 74695KG [75926.876178] Modules linked in: hidp hid tun acpi_cpufreq mperf cpufreq_stats cpufreq_userspace cpufreq_powersave cpufreq_conservative parport_pc ppdev lp parport rfcomm bnep autofs4 binfmt_misc uinput fuse nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc coretemp loop kvm_intel kvm snd_hda_codec_conexant arc4 i915 snd_hda_intel drm_kms_helper snd_hda_codec ecb snd_hwdep drm snd_pcm_oss snd_mixer_oss snd_pcm iwlagn i2c_algo_bit snd_seq_midi snd_rawmidi i2c_i801 thinkpad_acpi btusb iTCO_wdt iTCO_vendor_support i2c_core nvram snd_seq_midi_event snd_seq ac tpm_tis tpm tpm_bios battery snd_timer snd_seq_device evdev power_supply wmi mac80211 snd cfg80211 psmouse serio_raw bluetooth crc16 rfkill button processor soundcore snd_page_alloc video xfs sha256_generic cryptd aes_x86_64 aes_generic cbc dm_crypt dm_mod sd_mod crc_t10dif uhci_hcd ahci libahci ata_generic libata ehci_hcd scsi_mod usbcore thermal thermal_sys e1000e [last unloaded: scsi_wait_scan] [75926.876271] Pid: 24244, comm: kworker/0:1 Not tainted 2.6.39-2-amd64 #1 [75926.876274] Call Trace: [75926.876282] [<ffffffff810458b4>] ? warn_slowpath_common+0x78/0x8c [75926.876290] [<ffffffffa0355696>] ? iwl_mac_remove_interface+0x3b/0x72 [iwlagn] [75926.876298] [<ffffffffa01d1401>] ? rfkill_register+0x1c7/0x212 [rfkill] [75926.876309] [<ffffffffa02cbc4e>] ? ieee80211_do_stop+0x312/0x476 [mac80211] [75926.876315] [<ffffffffa01d144c>] ? rfkill_register+0x212/0x212 [rfkill] [75926.876324] [<ffffffffa02cbdc7>] ? ieee80211_stop+0x15/0x19 [mac80211] [75926.876330] [<ffffffff812793ce>] ? __dev_close_many+0x91/0xc7 [75926.876333] [<ffffffff812794d1>] ? dev_close_many+0x8b/0xfb [75926.876336] [<ffffffff81279574>] ? dev_close+0x33/0x4a [75926.876343] [<ffffffffa021eee3>] ? cfg80211_rfkill_set_block+0x3d/0x69 [cfg80211] [75926.876349] [<ffffffffa01d0cee>] ? rfkill_set_block+0x7f/0xd5 [rfkill] [75926.876355] [<ffffffffa01d0fbd>] ? rfkill_epo+0x34/0x89 [rfkill] [75926.876360] [<ffffffffa01d14a9>] ? rfkill_op_handler+0x5d/0x138 [rfkill] [75926.876365] [<ffffffff81059f07>] ? process_one_work+0x1d1/0x2ee [75926.876369] [<ffffffff8105be67>] ? worker_thread+0x12d/0x247 [75926.876372] [<ffffffff8105bd3a>] ? manage_workers+0x177/0x177 [75926.876375] [<ffffffff8105bd3a>] ? manage_workers+0x177/0x177 [75926.876379] [<ffffffff8105ef05>] ? kthread+0x7a/0x82 [75926.876384] [<ffffffff81339ee4>] ? kernel_thread_helper+0x4/0x10 [75926.876387] [<ffffffff8105ee8b>] ? kthread_worker_fn+0x147/0x147 [75926.876391] [<ffffffff81339ee0>] ? gs_change+0x13/0x13 [75926.876393] ---[ end trace 9cb073e9939a5c5d ]---
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