Re: Out of memory on 3.5 kernels

[Nico Schottelius]

Hey Arend,

just while running, I got the following brcmsmac related error:

[17336.572558] WARNING: at drivers/net/wireless/brcm80211/brcmsmac/main.c:7968 brcms_c_wait_for_tx_completion+0x99/0xb0 [brcmsmac]()
[17336.572562] Hardware name: MacBookAir4,2
[17336.572565] Modules linked in: sha256_generic snd_hda_codec_hdmi snd_hda_codec_cirrus ext4 jbd2 mbcache arc4 uvcvideo brcmsmac videobuf2_vmalloc videobuf2_memops cordic brcmutil btusb bluetooth i915 videobuf2_core mac80211 videodev crc16 acpi_cpufreq snd_hda_intel media i2c_algo_bit cfg80211 mperf drm_kms_helper snd_hda_codec rfkill joydev bcm5974 iTCO_wdt iTCO_vendor_support i2c_i801 intel_agp lpc_ich applesmc evdev microcode drm coretemp input_polldev pcspkr intel_gtt mfd_core i2c_core processor bcma snd_hwdep video button battery apple_bl mei ac snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_timer snd soundcore kvm_intel kvm nfs nfs_acl lockd auth_rpcgss sunrpc fscache autofs4 jfs xts gf128mul dm_crypt dm_mod sd_mod pata_acpi ata_generic hid_generic usb_storage hid_apple usbhid hid uhci_hcd aesni_intel aes_x86_64 aes_generic ghash_clmulni_intel cryptd crc32c_intel ata_piix libata scsi_mod ehci_hcd usbcore usb_common
[17336.572716] Pid: 27714, comm: kworker/u:1 Not tainted 3.5.4-1-ARCH #1
[17336.572719] Call Trace:
[17336.572734]  [<ffffffff81051a3f>] warn_slowpath_common+0x7f/0xc0
[17336.572743]  [<ffffffff81051a9a>] warn_slowpath_null+0x1a/0x20
[17336.572759]  [<ffffffffa063bd29>] brcms_c_wait_for_tx_completion+0x99/0xb0 [brcmsmac]
[17336.572769]  [<ffffffffa062e1bb>] brcms_ops_flush+0x3b/0x60 [brcmsmac]
[17336.572792]  [<ffffffffa04a2f69>] ieee80211_mgd_probe_ap_send+0xc9/0x230 [mac80211]
[17336.572809]  [<ffffffffa04a374f>] ieee80211_mgd_probe_ap.part.22+0x10f/0x130 [mac80211]
[17336.572823]  [<ffffffffa04a381d>] ieee80211_beacon_connection_loss_work+0xad/0x160 [mac80211]
[17336.572833]  [<ffffffff8106effa>] process_one_work+0x12a/0x440
[17336.572848]  [<ffffffffa04a3770>] ? ieee80211_mgd_probe_ap.part.22+0x130/0x130 [mac80211]
[17336.572857]  [<ffffffff8106f85e>] worker_thread+0x12e/0x2d0
[17336.572865]  [<ffffffff8106f730>] ? manage_workers.isra.26+0x1f0/0x1f0
[17336.572872]  [<ffffffff81074f73>] kthread+0x93/0xa0
[17336.572880]  [<ffffffff81486864>] kernel_thread_helper+0x4/0x10
[17336.572888]  [<ffffffff81074ee0>] ? kthread_freezable_should_stop+0x70/0x70
[17336.572894]  [<ffffffff81486860>] ? gs_change+0x13/0x13
[17336.572898] ---[ end trace 87315886d62eca54 ]---


Things are still running, though and slab is ~274 MiB.

Cheers,

Nico

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