On Tue, 11 Nov 2014 13:12:28 -0500 Dave Jones wrote: > Since the addition of 10d4c6736ea "Bluetooth: btusb: Add Broadcom patch > RAM support", I (and a number of other people[*]) have been seeing > this trace on resume from suspend. > > WARNING: CPU: 1 PID: 8565 at drivers/base/firmware_class.c:1127 _request_firmware+0x4c1/0x7c0() > CPU: 1 PID: 8565 Comm: kworker/u17:0 Not tainted 3.17.2-200.fc20.x86_64 #1 > Hardware name: LENOVO 2356JK8/2356JK8, BIOS G7ET94WW (2.54 ) 04/30/2013 > Workqueue: hci0 hci_power_on [bluetooth] > 0000000000000000 00000000f52a564b ffff8800a8c63be8 ffffffff817271cc > 0000000000000000 ffff8800a8c63c20 ffffffff81094ced ffff8800a8c63d10 > ffff8801365ddf00 ffff8801387b4b00 ffff8800a8c63d08 00000000fffffff5 > Call Trace: > [<ffffffff817271cc>] dump_stack+0x45/0x56 > [<ffffffff81094ced>] warn_slowpath_common+0x7d/0xa0 > [<ffffffff81094e1a>] warn_slowpath_null+0x1a/0x20 > [<ffffffff814965c1>] _request_firmware+0x4c1/0x7c0 > [<ffffffff8137b9b9>] ? snprintf+0x49/0x70 > [<ffffffff814968f1>] request_firmware+0x31/0x50 > [<ffffffffa0943bf3>] btusb_setup_bcm_patchram+0x83/0x550 [btusb] > [<ffffffff8148ecf6>] ? rpm_idle+0xd6/0x2b0 > [<ffffffffa0649051>] hci_dev_do_open+0xe1/0xa60 [bluetooth] > ACPI: \_SB_.PCI0.LPC_.EC__.BAT1: docking > Restarting tasks ... > [<ffffffff810bcb3d>] ? ttwu_do_activate.constprop.90+0x5d/0x70 > [<ffffffffa064a1c0>] hci_power_on+0x40/0x1e0 [bluetooth] > [<ffffffff810f53fb>] ? lock_timer_base.isra.34+0x2b/0x50 > [<ffffffff810acc39>] process_one_work+0x149/0x3d0 > [<ffffffff810ad2bb>] worker_thread+0x11b/0x490 > [<ffffffff810ad1a0>] ? rescuer_thread+0x2e0/0x2e0 > [<ffffffff810b2318>] kthread+0xd8/0xf0 > [<ffffffff810b2240>] ? kthread_create_on_node+0x190/0x190 > [<ffffffff8172e7bc>] ret_from_fork+0x7c/0xb0 > [<ffffffff810b2240>] ? kthread_create_on_node+0x190/0x190 > ---[ end trace 75a0e9c7f33ebb4c ]--- > bluetooth hci0: firmware: brcm/BCM20702A0-0a5c-21e6.hcd will not be loaded > Bluetooth: hci0: BCM: patch brcm/BCM20702A0-0a5c-21e6.hcd not found > > > At first I thought it was just over-reaction to the file being missing, but > looking at the WARN_ON, it appears that we're trying to invoke the firmware > loader before userspace is back up ? > > In this (and probably other related) kernel, CONFIG_FW_LOADER_USER_HELPER is unset, > in case that matters at all. > > Dave > > [*] https://bugzilla.kernel.org/show_bug.cgi?id=81821 > https://bugzilla.redhat.com/show_bug.cgi?id=1133378 I have the following during normal boot: [ 5.620796] Bluetooth: hci0: read Intel version: 370710018002030d00 [ 5.620822] bluetooth hci0: Direct firmware load for intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq failed with error -2 [ 5.620827] Bluetooth: hci0 failed to open Intel firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq(-2) [ 5.620920] bluetooth hci0: Direct firmware load for intel/ibt-hw-37.7.bseq failed with error -2 [ 5.620922] Bluetooth: hci0 failed to open default Intel fw file: intel/ibt-hw-37.7.bseq [ 5.629910] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null) [ 5.629916] VFS: Mounted root (ext4 filesystem) readonly on device 8:2. The driver is trying to load the firmware before root is mounted. Do I really need an initramfs? Thanks, -- Mihai Donțu -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
