Hi Nicolas, Thanks for reporting the crash issue, I've sent another patc to avoid this crash issue happened. kill anchor function wasn't protect well if MediaTek Bluetooth failed to setup. Add a flag check when running into btmtk_usb_suspend function. Thanks a lot, Chris On Mon, 2024-07-15 at 18:36 -0400, Nícolas F. R. A. Prado wrote: > On Thu, Jul 04, 2024 at 02:01:16PM +0800, Chris Lu wrote: > > This patch implements functions for ISO data send and receive in > > btusb > > driver for MediaTek's controller. > > > > MediaTek defines a specific interrupt endpoint for ISO data > > transmissin > > because the characteristics of interrupt endpoint are similar to > > the > > application of ISO data which can support guaranteed transmissin > > bandwidth, enough maximum data length and error checking mechanism. > > > > Driver sets up ISO interface and endpoints in btusb_mtk_setup and > > clears > > the setup in btusb_mtk_shutdown. These flow can't move to btmtk.c > > due to > > btusb_driver is only defined in btusb.c when claiming/relaesing > > interface. > > ISO packet anchor stops when driver suspending and resubmit > > interrupt urb > > for ISO data when driver resuming. > > > > Signed-off-by: Chris Lu <chris.lu@xxxxxxxxxxxx> > > --- > > Hi, > > KernelCI has identified a boot regression originating from this > patch. It > affects the mt8195-cherry-tomato-r2 platform. > > Through additional runs I've determined that it only happens when the > bluetooth > firmware (BT_RAM_CODE_MT7961_1_2_hdr.bin) isn't present. I realize > the firmware > should be present to make proper use of the bluetooth driver, and > I'll add it to > our testing images. Still, a panic shouldn't happen when it's > missing, hence > this report. > > Reverting this patch fixes the issue. > > This is the traceback: > > [ 6.734214] BUG: spinlock bad magic on CPU#3, kworker/3:1/104 > [ 6.740002] lock: 0xffff2c7b8655f660, .magic: 00000000, .owner: > <none>/-1, .owner_cpu: 0 > [ 6.748207] CPU: 3 UID: 0 PID: 104 Comm: kworker/3:1 Not tainted > 6.10.0-next-20240715 #1 35893202ca8f99b37129997821441a29d2b23f0a > [ 6.759874] Hardware name: Acer Tomato (rev2) board (DT) > [ 6.765195] Workqueue: pm pm_runtime_work > [ 6.769235] Call trace: > [ 6.771689] dump_backtrace+0x9c/0x100 > [ 6.775456] show_stack+0x20/0x38 > [ 6.778786] dump_stack_lvl+0x80/0xf8 > [ 6.782463] dump_stack+0x18/0x28 > [ 6.785791] spin_bug+0x90/0xd8 > [ 6.788950] do_raw_spin_lock+0xf4/0x128 > [ 6.792890] _raw_spin_lock_irq+0x30/0x70 > [ 6.796915] usb_kill_anchored_urbs+0x48/0x1e0 > [ 6.801378] btmtk_usb_suspend+0x20/0x38 [btmtk > 5f200a97badbdfda4266773fee49acfc8e0224d5] > [ 6.809578] btusb_suspend+0xd0/0x210 [btusb > 0bfbf19a87ff406c83b87268b87ce1e80e9a829b] > [ 6.817527] usb_suspend_both+0x90/0x288 > [ 6.821469] usb_runtime_suspend+0x3c/0xa8 > [ 6.825585] __rpm_callback+0x50/0x1f0 > [ 6.829351] rpm_callback+0x70/0x88 > [ 6.832856] rpm_suspend+0xe4/0x5a0 > [ 6.836361] pm_runtime_work+0xd4/0xe0 > [ 6.840126] process_one_work+0x18c/0x440 > [ 6.844156] worker_thread+0x314/0x428 > [ 6.847923] kthread+0x128/0x138 > [ 6.851167] ret_from_fork+0x10/0x20 > [ 6.854769] Unable to handle kernel paging request at virtual > address ffffffffffffffd8 > [ 6.862694] Mem abort info: > [ 6.865494] ESR = 0x0000000096000006 > [ 6.869249] EC = 0x25: DABT (current EL), IL = 32 bits > [ 6.874571] SET = 0, FnV = 0 > [ 6.877632] EA = 0, S1PTW = 0 > [ 6.880780] FSC = 0x06: level 2 translation fault > [ 6.885665] Data abort info: > [ 6.888553] ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000 > [ 6.894044] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 > [ 6.899103] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 > [ 6.904423] swapper pgtable: 4k pages, 48-bit VAs, > pgdp=0000000042533000 > [ 6.911134] [ffffffffffffffd8] pgd=0000000000000000, > p4d=0000000042e94003, pud=0000000042e95003, pmd=0000000000000000 > lav[ 6.921781] Internal error: Oops: 0000000096000006 [#1] PREEMPT > SMP > [ 6.921794] Modules linked in: mt7921e mt7921_common mt792x_lib > mt76_connac_lib mt76 mtk_vcodec_dec_hw mac80211 cros_ec_lid_angle > cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer > cfg80211 kfifo_buf mtk_vcodec_dec mtk_jpeg v4l2_vp9 cros_ec_rpmsg > mtk_vcodec_enc v4l2_h264 mtk_jpeg_enc_hw btusb mtk_vcodec_dbgfs > mtk_jpeg_dec_hw mtk_dp mtk_vcodec_common btintel btbcm uvcvideo btmtk > mtk_mdp3 videobuf2_vmalloc v4l2_mem2mem btrtl uvc joydev > videobuf2_v4l2 videobuf2_dma_contig bluetooth elan_i2c > videobuf2_memops ecdh_generic ecc videobuf2_common cros_ec_sensorhub > cros_kbd_led_backlight mtk_scp snd_sof_mt8195 pcie_mediatek_gen3 > mtk_rpmsg mtk_svs mtk_adsp_common snd_sof_xtensa_dsp rpmsg_core > lvts_thermal snd_sof_of mtk_scp_ipi snd_soc_mt8195_afe snd_sof > snd_sof_utils mtk_wdt mt6577_auxadc mt8195_mt6359 > [ 6.922087] CPU: 3 UID: 0 PID: 104 Comm: kworker/3:1 Not tainted > 6.10.0-next-20240715 #1 35893202ca8f99b37129997821441a29d2b23f0a > [ 6.922106] Hardware name: Acer Tomato (rev2) board (DT) > [ 6.922114] Workqueue: pm pm_runtime_work > [ 6.922132] pstate: 804000c9 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS > BTYPE=--) > [ 6.922147] pc : usb_kill_anchored_urbs+0x6c/0x1e0 > [ 6.922164] lr : usb_kill_anchored_urbs+0x48/0x1e0 > [ 6.922181] sp : ffff800080903b60 > [ 6.922187] x29: ffff800080903b60 x28: ffff2c7b85c32b80 x27: > ffff2c7bbb370930 > [ 6.922211] x26: 00000000000f4240 x25: 00000000ffffffff x24: > ffffd49ece2dcb48 > [ 6.922233] x23: 0000000000000001 x22: ffff2c7b8655f660 x21: > ffff2c7b8655f628 > [ 6.922255] x20: ffffffffffffffd8 x19: 0000000000000000 x18: > 0000000000000006 > [ 6.922276] x17: 6531656337386238 x16: 3632373862333863 x15: > ffff800080903480 > [ 6.922297] x14: 0000000000000000 x13: 303278302f303178 x12: > ffffd49ecf090e30 > [ 6.922318] x11: 0000000000000001 x10: 0000000000000001 x9 : > ffffd49ecd2c5bb4 > [ 6.922339] x8 : c0000000ffffdfff x7 : ffffd49ecefe0db8 x6 : > 00000000000affa8 > [ 6.922360] x5 : ffff2c7bbb35dd48 x4 : 0000000000000000 x3 : > 0000000000000000 > [ 6.922379] x2 : 0000000000000000 x1 : 0000000000000003 x0 : > ffffffffffffffd8 > [ 6.922400] Call trace: > [ 6.922405] usb_kill_anchored_urbs+0x6c/0x1e0 > [ 6.922422] btmtk_usb_suspend+0x20/0x38 [btmtk > 5f200a97badbdfda4266773fee49acfc8e0224d5] > [ 6.922444] btusb_suspend+0xd0/0x210 [btusb > 0bfbf19a87ff406c83b87268b87ce1e80e9a829b] > [ 6.922469] usb_suspend_both+0x90/0x288 > [ 6.922487] usb_runtime_suspend+0x3c/0xa8 > [ 6.922507] __rpm_callback+0x50/0x1f0 > [ 6.922523] rpm_callback+0x70/0x88 > [ 6.922538] rpm_suspend+0xe4/0x5a0 > [ 6.922553] pm_runtime_work+0xd4/0xe0 > [ 6.922569] process_one_work+0x18c/0x440 > [ 6.922588] worker_thread+0x314/0x428 > [ 6.922606] kthread+0x128/0x138 > [ 6.922621] ret_from_fork+0x10/0x20 > [ 6.922644] Code: f100a274 54000520 d503201f d100a260 (b8370000) > [ 6.922654] ---[ end trace 0000000000000000 ]--- > a-148[ 7.203910] Kernel panic - not syncing: Oops: Fatal exception > [ 7.209649] SMP: stopping secondary CPUs > [ 7.213713] Kernel Offset: 0x549e4c400000 from 0xffff800080000000 > [ 7.219796] PHYS_OFFSET: 0xfff0d38580000000 > [ 7.223969] CPU features: 0x04,0000000b,80140528,4200720b > [ 7.229360] Memory Limit: none > > Full kernel log: > https://urldefense.com/v3/__http://0x0.st/X9rx.txt__;!!CTRNKA9wMg0ARbw!g_UleOH6C5AdZoKEVoko3ewb6zKCcWfDGfw3u6LV_x3JCST7WnvMrAzM7wP0A4WkiW4v0EM53wjf8el1gXWfqA$ > > Config: > https://urldefense.com/v3/__http://0x0.st/X9r2.txt__;!!CTRNKA9wMg0ARbw!g_UleOH6C5AdZoKEVoko3ewb6zKCcWfDGfw3u6LV_x3JCST7WnvMrAzM7wP0A4WkiW4v0EM53wjf8enPGJN1sg$ > > > #regzbot introduced: ee6bd4b95c66 > #regzbot title: usb_kill_anchored_urbs panic during boot on mt8195- > cherry-tomato-r2 > > Thanks, > Nícolas
