Hi,
On Fedora Rawhide (reproduced on git master), vmw_pvscsi probe fails.
It also calls free_irq during cleanup, which produces a warning since it
didn't
call request_irq in this case.
Reverting commit 2e48e34 (scsi: vmw_pvscsi: switch to pci_alloc_irq_vectors)
fixes the issue (I get "vmw_pvscsi: using MSI-X", and it uses the IRQ 78).
[ 2.671383] vmw_pvscsi: using 64bit dma
[ 2.671750] vmw_pvscsi: max_id: 16
[ 2.671752] vmw_pvscsi: setting ring_pages to 8
[ 2.673209] ------------[ cut here ]------------
[ 2.673219] WARNING: CPU: 2 PID: 402 at kernel/irq/manage.c:1478
__free_irq+0xa4/0x2e0
[ 2.673220] Trying to free already-free IRQ 78
[ 2.673221] Modules linked in: serio_raw vmw_pvscsi(+) vmxnet3
ata_generic pata_acpi fjes vmwgfx drm_kms_helper ttm drm
[ 2.673236] CPU: 2 PID: 402 Comm: systemd-udevd Not tainted
4.11.0r0-test1+ #2
[ 2.673238] Hardware name: VMware, Inc. VMware Virtual Platform/440BX
Desktop Reference Platform, BIOS 6.00 07/02/2015
[ 2.673239] Call Trace:
[ 2.673244] dump_stack+0x8e/0xd1
[ 2.673248] __warn+0xcb/0xf0
[ 2.673252] warn_slowpath_fmt+0x5f/0x80
[ 2.673257] ? _raw_spin_lock_irqsave+0x82/0x90
[ 2.673259] ? __free_irq+0x5f/0x2e0
[ 2.673262] __free_irq+0xa4/0x2e0
[ 2.673265] ? __pci_enable_msix+0x234/0x520
[ 2.673269] free_irq+0x39/0x90
[ 2.673274] pvscsi_shutdown_intr+0x25/0x40 [vmw_pvscsi]
[ 2.673277] pvscsi_release_resources+0x1e/0x370 [vmw_pvscsi]
[ 2.673281] pvscsi_probe+0xd2e/0x10a4 [vmw_pvscsi]
[ 2.673306] local_pci_probe+0x42/0xa0
[ 2.673308] ? pci_match_device+0xe0/0x110
[ 2.673311] pci_device_probe+0xbe/0x150
[ 2.673313] ? _raw_spin_unlock+0x27/0x40
[ 2.673318] driver_probe_device+0x106/0x450
[ 2.673322] __driver_attach+0xa8/0xf0
[ 2.673325] ? driver_probe_device+0x450/0x450
[ 2.673327] bus_for_each_dev+0x75/0xc0
[ 2.673331] driver_attach+0x1e/0x20
[ 2.673333] bus_add_driver+0x1d3/0x270
[ 2.673335] ? 0xffffffffc032d000
[ 2.673338] driver_register+0x60/0xe0
[ 2.673340] ? 0xffffffffc032d000
[ 2.673342] __pci_register_driver+0x60/0x70
[ 2.673345] pvscsi_init+0x38/0x1000 [vmw_pvscsi]
[ 2.673348] do_one_initcall+0x50/0x1a0
[ 2.673351] ? rcu_read_lock_sched_held+0x79/0x80
[ 2.673354] ? kmem_cache_alloc_trace+0x273/0x2e0
[ 2.673356] ? do_init_module+0x27/0x1e8
[ 2.673361] do_init_module+0x5f/0x1e8
[ 2.673365] load_module+0x2386/0x29d0
[ 2.673367] ? __symbol_put+0x70/0x70
[ 2.673371] ? show_coresize+0x30/0x30
[ 2.673375] ? vfs_read+0x131/0x180
[ 2.673386] SYSC_finit_module+0xf6/0x110
[ 2.673395] SyS_finit_module+0xe/0x10
[ 2.673397] do_syscall_64+0x6c/0x1f0
[ 2.673400] entry_SYSCALL64_slow_path+0x25/0x25
[ 2.673402] RIP: 0033:0x7f770375e5d9
[ 2.673403] RSP: 002b:00007fff59d224b8 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 2.673406] RAX: ffffffffffffffda RBX: 000056462cb91f20 RCX:
00007f770375e5d9
[ 2.673407] RDX: 0000000000000000 RSI: 00007f77042999c5 RDI:
0000000000000006
[ 2.673408] RBP: 00007f77042999c5 R08: 0000000000000000 R09:
00007fff59d225d0
[ 2.673409] R10: 0000000000000006 R11: 0000000000000246 R12:
0000000000000000
[ 2.673410] R13: 000056462cb8fcd0 R14: 0000000000020000 R15:
000056462ae4cd81
[ 2.673419] ---[ end trace 19fc54ed551e946e ]---
[ 2.677816] vmw_pvscsi 0000:13:00.0: Driver probe function
unexpectedly returned 1
