On Mon Nov 20, 2023 at 10:08 PM EET, Lino Sanfilippo wrote:
> Hi,
>
> On 19.11.23 22:37, Jarkko Sakkinen wrote:
>
> >
> > On Sun Nov 19, 2023 at 10:35 PM EET, Jarkko Sakkinen wrote:
> >> Captured from serial link with Raspberry Pi 3B+ and Infineon SLB9670 TPM2 chip, i.e.
> >> triggers here:
> >>
> >> static bool __flush_work(struct work_struct *work, bool from_cancel)
> >> {
> >> struct wq_barrier barr;
> >>
> >> if (WARN_ON(!wq_online))
> >> return false;
> >>
> >> if (WARN_ON(!work->func)) /* <-- */
> >> return false;
> >>
> >>
> >> # uname -a
> >> Linux buildroot 6.6.1-v8 #1 SMP PREEMPT Sun Nov 19 21:46:00 EET 2023 aarch64 GNU/Linux
> >> # poweroff
> >> # Stopping dropbear sshd: OK
> >> Stopping network: [ 246.487818] smsc95xx 3-1.1:1.0 eth0: hardware isn't capable of remote wakeup
> >> OK
> >> Stopping klogd: OK
> >> Stopping syslogd: OK
> >> Seeding 256 bits and crediting
> >> Saving 256 bits of creditable seed for next boot
> >> umount: devtmpfs busy - remounted read-only
> >> [ 246.623163] EXT4-fs (mmcblk0p2): re-mounted c5bb63df-c03e-4e4a-9846-0cdf5986edc4 ro. Quota mode: none.
> >> The system is going down NOW!
> >> Sent SIGTERM to all processes
> >> Sent SIGKILL to al[ 248.680154] ------------[ cut here ]------------
> >> [ 248.684825] WARNING: CPU: 1 PID: 298 at kernel/workqueue.c:3400 __flush_work.isra.0+0x29c/0x2c4
> >> [ 248.693582] CPU: 1 PID: 298 Comm: init Tainted: G W 6.6.1-v8 #1
> >> [ 248.700926] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT)
> >> [ 248.706780] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> >> [ 248.713774] pc : __flush_work.isra.0+0x29c/0x2c4
> >> [ 248.718415] lr : __flush_work.isra.0+0x44/0x2c4
> >> [ 248.722970] sp : ffffffc0812fb910
> >> [ 248.726299] x29: ffffffc0812fb910 x28: ffffff8003e30e40 x27: 0000000000000000
> >> [ 248.733481] x26: fffffff0350c9c10 x25: 0000000000000000 x24: fffffff03500c028
> >> [ 248.740661] x23: fffffff03500d208 x22: 0000000000000001 x21: fffffff034f37568
> >> [ 248.747840] x20: ffffff80064d9ac0 x19: ffffff80064d9a80 x18: ffffffffffffffff
> >> [ 248.755019] x17: 0000000000000000 x16: 0000000000000000 x15: ffffffc0812fb760
> >> [ 248.762197] x14: 0000000000000004 x13: ffffff8002808410 x12: 0000000000000000
> >> [ 248.769376] x11: 0000000000000040 x10: fffffff034f35a98 x9 : 0000000000000004
> >> [ 248.776554] x8 : ffffffc0812fb9a8 x7 : 0000000000000000 x6 : 00000000000003e8
> >> [ 248.783732] x5 : fffffff034e46000 x4 : 0000000000000000 x3 : 0000000000000000
> >> [ 248.790909] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000
> >> [ 248.798087] Call trace:
> >> [ 248.800546] __flush_work.isra.0+0x29c/0x2c4
> >> [ 248.804841] flush_work+0x10/0x1c
> >> [ 248.808177] tpm_tis_remove+0x90/0xc8
> >> [ 248.811866] tpm_tis_spi_remove+0x24/0x34
> >> [ 248.815901] spi_remove+0x30/0x4c
> >> [ 248.819238] device_remove+0x4c/0x80
> >> [ 248.822836] device_release_driver_internal+0x1d4/0x228
> >> [ 248.828088] device_release_driver+0x18/0x24
> >> [ 248.832381] bus_remove_device+0xcc/0x10c
> >> [ 248.836421] device_del+0x15c/0x41c
> >> [ 248.839934] spi_unregister_device+0x48/0x98
> >> [ 248.844231] __unregister+0x10/0x20
> >> [ 248.847742] device_for_each_child+0x60/0xb4
> >> [ 248.852037] spi_unregister_controller+0x48/0x15c
> >> [ 248.856768] bcm2835_spi_remove+0x20/0x60
> >> [ 248.860804] platform_shutdown+0x24/0x34
> >> [ 248.864751] device_shutdown+0x150/0x258
> >> [ 248.868701] kernel_power_off+0x38/0x7c
> >> [ 248.872563] __do_sys_reboot+0x200/0x238
> >> [ 248.876511] __arm64_sys_reboot+0x24/0x30
> >> [ 248.880546] invoke_syscall+0x48/0x114
> >> [ 248.884324] el0_svc_common.constprop.0+0x40/0xe0
> >> [ 248.889057] do_el0_svc+0x1c/0x28
> >> [ 248.892397] el0_svc+0x40/0xe8
> >> [ 248.895478] el0t_64_sync_handler+0x100/0x12c
> >> [ 248.899864] el0t_64_sync+0x190/0x194
> >> [ 248.903549] ---[ end trace 0000000000000000 ]---
> >> [ 248.910555] reboot: Power down
> >>
> >> Just putting out. I was testing https://github.com/jarkkojs/buildroot-tpmdd/tree/linux-6.6.y
> >> and this popped up. To build sdcard.img bootable with Raspberry Pi 3:
> >>
> >> make raspberrypi3_tpmdd_64_defconfig && make
> >>
> >> BR, Jarkko
> >
> > So I applied [1] and now I get a clean shutdown:
> >
>
> AFAIU the warning is shown in case that interrupts are not enabled and thus INIT_WORK has not
> been called for free_irq_work. This should not be too hard to fix, so I think I can provide
> a patch for that, soon.
Agreed, and take your time. I just captured without further analysis so
that does not get lost, that's all. Thanks for looking into it.
> BR,
> Lino
BR, Jarkko
