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Subject[REGRESSION] Failed network caused by: xhci: switch to pci_alloc_irq_vectors

One of my the configs I use to test ftrace with (configs that have
caused failures in the past), has lots of irq issues and fails to
initialize the network of my box. I bisected the problem down to a
single commit, and when I revert that commit, my box boots without any
network or irq issues.

Note, my other configs work fine on this box. I haven't investigated
which config is also the culprit. But since it use to work with this
config, I want to report it.

Here's the dmesg where things start to get messy:

md: Waiting for all devices to be available before autodetect
md: If you don't use raid, use raid=noautodetect
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
EXT4-fs (sda7): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (sda7): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) readonly on device 8:7.
irq 16: nobody cared (try booting with the "irqpoll" option)
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.12.0-rc1-test-dirty #24
Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014
Call Trace:
<IRQ>
devtmpfs: mounted
dump_stack+0x9a/0xd6
__report_bad_irq+0x35/0xc0
note_interrupt+0x234/0x270
handle_irq_event_percpu+0x45/0x60
handle_irq_event+0x39/0x60
handle_fasteoi_irq+0x8f/0x160
handle_irq+0x6f/0x110
do_IRQ+0x46/0xd0
common_interrupt+0x93/0x93
RIP: 0010:native_safe_halt+0x6/0x10
RSP: 0000:ffffb54240cd7e90 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff7e
RAX: 0000000000000000 RBX: ffff8ea214498040 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffb54240cd7e90 R08: 0000000000000001 R09: 0000000041129b0c
R10: ffffb54240cd7d68 R11: 0000000000000001 R12: 0000000000000002
R13: ffff8ea214498040 R14: 0000000000000000 R15: ffff8ea214498040
</IRQ>
default_idle+0x38/0x160
arch_cpu_idle+0xf/0x20
default_idle_call+0x28/0x50
do_idle+0x182/0x220
cpu_startup_entry+0x1d/0x20
start_secondary+0x132/0x160
secondary_startup_64+0x9f/0x9f
handlers:
[<ffffffff9a6421a0>] xhci_msi_irq
Disabling IRQ #16
Freeing unused kernel memory: 3548K
Write protecting the kernel read-only data: 16384k
Freeing unused kernel memory: 1116K
Freeing unused kernel memory: 1840K
readahead: starting
nt /proc/bus/usb does not exist
Welcome to Fedora
Press 'I' to enter interactive startup.
udev: starting version 153
udevd (244): /proc/244/oom_adj is deprecated, please use /proc/244/oom_score_adj instead.
: error opening ATTR{/sys/devices/system/cpu/cpu0/online} for writing: Permission denied

ehci_hcd: module verification failed: signature and/or required key missing - tainting kernel
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
ehci-pci 0000:00:1a.0: EHCI Host Controller
ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 3
ehci-pci 0000:00:1a.0: debug port 2
ehci-pci 0000:00:1a.0: cache line size of 64 is not supported
genirq: Flags mismatch irq 16. 00000080 (ehci_hcd:usb3) vs. 00000000 (xhci_hcd)
CPU: 0 PID: 307 Comm: modprobe Tainted: G E 4.12.0-rc1-test-dirty #24
Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014
Call Trace:
dump_stack+0x9a/0xd6
__setup_irq+0x5d4/0x630
request_threaded_irq+0x10d/0x190
usb_add_hcd+0x658/0x970
? for_each_companion+0x3e/0xb0
usb_hcd_pci_probe+0x3e4/0x490
ehci_pci_probe+0x36/0x40 [ehci_pci]
local_pci_probe+0x45/0xa0
? pci_match_device+0xca/0x110
pci_device_probe+0xdb/0x130
driver_probe_device+0x2ed/0x480
__driver_attach+0xd5/0x100
? driver_probe_device+0x480/0x480
bus_for_each_dev+0x62/0xa0
driver_attach+0x1e/0x20
bus_add_driver+0x1c6/0x290
driver_register+0x60/0xe0
__pci_register_driver+0x60/0x70
? 0xffffffffc0346000
ehci_pci_init+0x6a/0x1000 [ehci_pci]
do_one_initcall+0x43/0x190
? kmem_cache_alloc_trace+0x1be/0x200
do_init_module+0x7d/0x210
load_module+0x1891/0x1eb0
? vmap_page_range_noflush+0x29b/0x370
? show_coresize+0x30/0x30
SYSC_init_module+0x143/0x180
? load_module+0x5/0x1eb0
? SYSC_init_module+0x143/0x180
SyS_init_module+0xe/0x10
entry_SYSCALL_64_fastpath+0x23/0xc2
RIP: 0033:0x3b918e0ffa
RSP: 002b:00007ffd11d575c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000af
RAX: ffffffffffffffda RBX: 000000000061f950 RCX: 0000003b918e0ffa
RDX: 000000000061f7d0 RSI: 00000000000036b0 RDI: 000000000062c9e0
RBP: 0000000000000000 R08: 0000000000630090 R09: 00007f019c07c700
R10: 00007ffd11d574f0 R11: 0000000000000246 R12: 0000000000626200
R13: 000000000061f930 R14: 0000000000000000 R15: 000000000061f420
ehci-pci 0000:00:1a.0: request interrupt 16 failed
ehci-pci 0000:00:1a.0: USB bus 3 deregistered
ehci-pci 0000:00:1a.0: init 0000:00:1a.0 fail, -16
ehci-pci: probe of 0000:00:1a.0 failed with error -16
ehci-pci 0000:00:1d.0: EHCI Host Controller
ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 3
ehci-pci 0000:00:1d.0: debug port 2
ehci-pci 0000:00:1d.0: cache line size of 64 is not supported
ehci-pci 0000:00:1d.0: irq 23, io mem 0xf7d1b000
ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
sr 0:0:0:0: Attached scsi generic sg0 type 5
sd 1:0:0:0: Attached scsi generic sg1 type 0
r8169 0000:02:00.0 eth2: renamed from eth0
usb 3-1: new high-speed USB device number 2 using ehci-pci
hub 3-1:1.0: ignoring external hub
xhci_hcd 0000:00:14.0: Error while assigning device slot ID
xhci_hcd 0000:00:14.0: Max number of devices this xHCI host supports is 32.
usb usb1-port5: couldn't allocate usb_device


Setting up Logical Volume Management: 1 logical volume(s) in volume group "vg00" now active
3 logical volume(s) in volume group "fedora" now active

Checking filesystems
Checking all file systems.
fsck.ext4 -a /dev/sda7
/dev/sda7: clean, 210030/1313760 files, 1911684/5245214 blocks

EXT4-fs (sda7): re-mounted. Opts: (null)

EXT4-fs (dm-0): mounting ext3 file system using the ext4 subsystem
EXT4-fs (dm-0): warning: maximal mount count reached, running e2fsck is recommended
EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: (null)
EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)



Entering non-interactive startup
Starting monitoring for VG fedora: 3 logical volume(s) in volume group "fedora" monitored

Starting monitoring for VG vg00: 1 logical volume(s) in volume group "vg00" monitored

ip6tables: Applying firewall rules: WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
FATAL: Module ip6_tables not found.
ip6tables-restore v1.4.7: ip6tables-restore: unable to initialize table 'filter'

Error occurred at line: 3
Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information.

iptables: Applying firewall rules: WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
FATAL: Module ip_tables not found.
iptables-restore v1.4.7: iptables-restore: unable to initialize table 'filter'

Error occurred at line: 3
Try `iptables-restore -h' or 'iptables-restore --help' for more information.







Tried to locate /boot/vmlinuz-4.12.0-rc1-test-dirty
Cannot open `/boot/vmlinuz-4.12.0-rc1-test-dirty': stream error




r8169 0000:02:00.0: Direct firmware load for rtl_nic/rtl8168g-2.fw failed with error -2
r8169 0000:02:00.0 eth2: unable to load firmware patch rtl_nic/rtl8168g-2.fw (-2)
genirq: Flags mismatch irq 16. 00000080 (eth2) vs. 00000000 (xhci_hcd)
CPU: 1 PID: 934 Comm: NetworkManager Tainted: G E 4.12.0-rc1-test-dirty #24
Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014
Call Trace:
dump_stack+0x9a/0xd6
__setup_irq+0x5d4/0x630
request_threaded_irq+0x10d/0x190
rtl_open+0x4af/0xc80
__dev_open+0x95/0xf0
__dev_change_flags+0x9d/0x160
dev_change_flags+0x29/0x60
do_setlink+0x306/0xc60
? sched_clock+0x13/0x20
? sched_clock+0x13/0x20
? sched_clock_local+0x17/0x90
? deactivate_slab+0x592/0x600
? nla_parse+0x35/0x140
rtnl_setlink+0xe2/0x130
rtnetlink_rcv_msg+0x8a/0x1f0
? rtnetlink_rcv+0x1b/0x40
? rtnl_newlink+0x910/0x910
netlink_rcv_skb+0xd3/0xf0
rtnetlink_rcv+0x2a/0x40
netlink_unicast+0x165/0x1e0
netlink_sendmsg+0x26b/0x340
___sys_sendmsg+0x2e9/0x300
? ___sys_recvmsg+0x174/0x200
? SYSC_sendto+0x102/0x180
__sys_sendmsg+0x45/0x80
? ___sys_sendmsg+0x5/0x300
? __sys_sendmsg+0x45/0x80
SyS_sendmsg+0x12/0x20
entry_SYSCALL_64_fastpath+0x23/0xc2
RIP: 0033:0x3b91c0eac0
RSP: 002b:00007ffe79384be8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000713400 RCX: 0000003b91c0eac0
RDX: 0000000000000000 RSI: 00007ffe79384c30 RDI: 0000000000000009
RBP: 00007ffe79384ac8 R08: 0000000000001003 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000002 R14: ffffffffffffff58 R15: 00007ffe79384b10


Starting RPC idmapd: WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
FATAL: Module sunrpc not found.
FATAL: Error running install command for sunrpc
Error: RPC MTAB does not exist.


I attached the full dmesg as well as my .config.

-- Steve
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