virt-manager / spice mouse passthrough breaks in v6.7.3 #90
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anthraxx
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Feb 20, 2024
commit 369acf9 upstream. bch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut. It should be freed by kvfree not kfree. Or umount will triger: [ 406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008 [ 406.830676 ] #PF: supervisor read access in kernel mode [ 406.831643 ] #PF: error_code(0x0000) - not-present page [ 406.832487 ] PGD 0 P4D 0 [ 406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI [ 406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G OE 6.7.0-rc7-custom+ #90 [ 406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 [ 406.835796 ] RIP: 0010:kfree+0x62/0x140 [ 406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6 [ 406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286 [ 406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4 [ 406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000 [ 406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001 [ 406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80 [ 406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000 [ 406.840451 ] FS: 00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000 [ 406.840851 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0 [ 406.841464 ] Call Trace: [ 406.841583 ] <TASK> [ 406.841682 ] ? __die+0x1f/0x70 [ 406.841828 ] ? page_fault_oops+0x159/0x470 [ 406.842014 ] ? fixup_exception+0x22/0x310 [ 406.842198 ] ? exc_page_fault+0x1ed/0x200 [ 406.842382 ] ? asm_exc_page_fault+0x22/0x30 [ 406.842574 ] ? bch2_fs_release+0x54/0x280 [bcachefs] [ 406.842842 ] ? kfree+0x62/0x140 [ 406.842988 ] ? kfree+0x104/0x140 [ 406.843138 ] bch2_fs_release+0x54/0x280 [bcachefs] [ 406.843390 ] kobject_put+0xb7/0x170 [ 406.843552 ] deactivate_locked_super+0x2f/0xa0 [ 406.843756 ] cleanup_mnt+0xba/0x150 [ 406.843917 ] task_work_run+0x59/0xa0 [ 406.844083 ] exit_to_user_mode_prepare+0x197/0x1a0 [ 406.844302 ] syscall_exit_to_user_mode+0x16/0x40 [ 406.844510 ] do_syscall_64+0x4e/0xf0 [ 406.844675 ] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 406.844907 ] RIP: 0033:0x7f0a2664e4fb Signed-off-by: Su Yue <[email protected]> Reviewed-by: Brian Foster <[email protected]> Signed-off-by: Kent Overstreet <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
anthraxx
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May 19, 2024
Lockdep detects a possible deadlock as listed below. This is because it
detects the IA55 interrupt controller .irq_eoi() API is called from
interrupt context while configuration-specific API (e.g., .irq_enable())
could be called from process context on resume path (by calling
rzg2l_gpio_irq_restore()). To avoid this, protect the call of
rzg2l_gpio_irq_enable() with spin_lock_irqsave()/spin_unlock_irqrestore().
With this the same approach that is available in __setup_irq() is mimicked
to pinctrl IRQ resume function.
Below is the lockdep report:
WARNING: inconsistent lock state
6.8.0-rc5-next-20240219-arm64-renesas-00030-gb17a289abf1f #90 Not tainted
--------------------------------
inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
str_rwdt_t_001./159 [HC0[0]:SC0[0]:HE1:SE1] takes:
ffff00000b001d70 (&rzg2l_irqc_data->lock){?...}-{2:2}, at: rzg2l_irqc_irq_enable+0x60/0xa4
{IN-HARDIRQ-W} state was registered at:
lock_acquire+0x1e0/0x310
_raw_spin_lock+0x44/0x58
rzg2l_irqc_eoi+0x2c/0x130
irq_chip_eoi_parent+0x18/0x20
rzg2l_gpio_irqc_eoi+0xc/0x14
handle_fasteoi_irq+0x134/0x230
generic_handle_domain_irq+0x28/0x3c
gic_handle_irq+0x4c/0xbc
call_on_irq_stack+0x24/0x34
do_interrupt_handler+0x78/0x7c
el1_interrupt+0x30/0x5c
el1h_64_irq_handler+0x14/0x1c
el1h_64_irq+0x64/0x68
_raw_spin_unlock_irqrestore+0x34/0x70
__setup_irq+0x4d4/0x6b8
request_threaded_irq+0xe8/0x1a0
request_any_context_irq+0x60/0xb8
devm_request_any_context_irq+0x74/0x104
gpio_keys_probe+0x374/0xb08
platform_probe+0x64/0xcc
really_probe+0x140/0x2ac
__driver_probe_device+0x74/0x124
driver_probe_device+0x3c/0x15c
__driver_attach+0xec/0x1c4
bus_for_each_dev+0x70/0xcc
driver_attach+0x20/0x28
bus_add_driver+0xdc/0x1d0
driver_register+0x5c/0x118
__platform_driver_register+0x24/0x2c
gpio_keys_init+0x18/0x20
do_one_initcall+0x70/0x290
kernel_init_freeable+0x294/0x504
kernel_init+0x20/0x1cc
ret_from_fork+0x10/0x20
irq event stamp: 69071
hardirqs last enabled at (69071): [<ffff800080e0dafc>] _raw_spin_unlock_irqrestore+0x6c/0x70
hardirqs last disabled at (69070): [<ffff800080e0cfec>] _raw_spin_lock_irqsave+0x7c/0x80
softirqs last enabled at (67654): [<ffff800080010614>] __do_softirq+0x494/0x4dc
softirqs last disabled at (67645): [<ffff800080015238>] ____do_softirq+0xc/0x14
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&rzg2l_irqc_data->lock);
<Interrupt>
lock(&rzg2l_irqc_data->lock);
*** DEADLOCK ***
4 locks held by str_rwdt_t_001./159:
#0: ffff00000b10f3f0 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x1a4/0x35c
#1: ffff00000e43ba88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0xe8/0x1a8
#2: ffff00000aa21dc8 (kn->active#40){.+.+}-{0:0}, at: kernfs_fop_write_iter+0xf0/0x1a8
#3: ffff80008179d970 (system_transition_mutex){+.+.}-{3:3}, at: pm_suspend+0x9c/0x278
stack backtrace:
CPU: 0 PID: 159 Comm: str_rwdt_t_001. Not tainted 6.8.0-rc5-next-20240219-arm64-renesas-00030-gb17a289abf1f #90
Hardware name: Renesas SMARC EVK version 2 based on r9a08g045s33 (DT)
Call trace:
dump_backtrace+0x94/0xe8
show_stack+0x14/0x1c
dump_stack_lvl+0x88/0xc4
dump_stack+0x14/0x1c
print_usage_bug.part.0+0x294/0x348
mark_lock+0x6b0/0x948
__lock_acquire+0x750/0x20b0
lock_acquire+0x1e0/0x310
_raw_spin_lock+0x44/0x58
rzg2l_irqc_irq_enable+0x60/0xa4
irq_chip_enable_parent+0x1c/0x34
rzg2l_gpio_irq_enable+0xc4/0xd8
rzg2l_pinctrl_resume_noirq+0x4cc/0x520
pm_generic_resume_noirq+0x28/0x3c
genpd_finish_resume+0xc0/0xdc
genpd_resume_noirq+0x14/0x1c
dpm_run_callback+0x34/0x90
device_resume_noirq+0xa8/0x268
dpm_noirq_resume_devices+0x13c/0x160
dpm_resume_noirq+0xc/0x1c
suspend_devices_and_enter+0x2c8/0x570
pm_suspend+0x1ac/0x278
state_store+0x88/0x124
kobj_attr_store+0x14/0x24
sysfs_kf_write+0x48/0x6c
kernfs_fop_write_iter+0x118/0x1a8
vfs_write+0x270/0x35c
ksys_write+0x64/0xec
__arm64_sys_write+0x18/0x20
invoke_syscall+0x44/0x108
el0_svc_common.constprop.0+0xb4/0xd4
do_el0_svc+0x18/0x20
el0_svc+0x3c/0xb8
el0t_64_sync_handler+0xb8/0xbc
el0t_64_sync+0x14c/0x150
Fixes: 254203f ("pinctrl: renesas: rzg2l: Add suspend/resume support")
Signed-off-by: Claudiu Beznea <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
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I run Arch in my VM.
After updating kernel from 6.7.2-hardened1-2-hardened to linux-hardened-6.7.3.hardened1-2 my spice mouse is not working properly. My host mouse pointer is gone. It uses the lagging VM mouse pointer.
I downgraded back to 6.7.2-hardened1-2-hardened and now everything is ok
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