kernel crash when hot-remove pvscsi controller

[vmware-gos-Yuhua]

I install ubuntu 17.10 Server/Desktop GA in ESXi 6.5GA.
When I edit VM ubuntu 17.10 setting to remove pvscsi controller, the kernel crash immediately.

This is pvscsi driver issue. VMware have submitted the patch upstream into the kernel sources.

[vmware-gos-Yuhua (yhzou)]

Issue exists with ubuntu18.04 Server 64bit daily build 12-Mar-2018.

After hot-remove PVSCSI controller and type "dmesg" in terminal, we can see:

[ 90.240204] pciehp 0000:00:17.0:pcie004: Slot(224): Attention button pressed
[ 90.240285] pciehp 0000:00:17.0:pcie004: Slot(224): Powering off due to button press
[ 95.523836] pciehp 0000:00:17.0:pcie004: Slot(224): Link Down
[ 96.544292] pciehp 0000:00:17.0:pcie004: Slot(224): Already disabled
[ 135.202312] pciehp 0000:00:17.0:pcie004: Slot(224): Attention button pressed
[ 135.203026] pciehp 0000:00:17.0:pcie004: Slot(224): Link Up
[ 135.206159] pciehp 0000:00:17.0:pcie004: Slot(224) Powering on due to button press
[ 135.324090] pci 0000:13:00.0: [15ad:07c0] type 00 class 0x010700
[ 135.324715] pci 0000:13:00.0: reg 0x10: [io 0x0000-0x0007]
[ 135.325071] pci 0000:13:00.0: reg 0x14: [mem 0x00000000-0x00007fff 64bit]
[ 135.325696] pci 0000:13:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[ 135.327592] pci 0000:13:00.0: PME# supported from D0 D3hot D3cold
[ 135.332219] pci 0000:13:00.0: disabling ASPM on pre-1.1 PCIe device. You can enable it with 'pcie_aspm=force'
[ 135.332590] pci 0000:13:00.0: BAR 6: assigned [mem 0xfd900000-0xfd90ffff pref]
[ 135.332598] pci 0000:13:00.0: BAR 1: assigned [mem 0xfd910000-0xfd917fff 64bit]
[ 135.332832] pci 0000:13:00.0: BAR 0: assigned [io 0x2000-0x2007]
[ 135.332901] pcieport 0000:00:17.0: PCI bridge to [bus 13]
[ 135.332938] pcieport 0000:00:17.0: bridge window [io 0x2000-0x2fff]
[ 135.333037] pcieport 0000:00:17.0: bridge window [mem 0xfd900000-0xfd9fffff]
[ 135.333104] pcieport 0000:00:17.0: bridge window [mem 0xc0400000-0xc05fffff 64bit pref]
[ 135.357705] VMware PVSCSI driver - version 1.0.7.0-k
[ 135.358116] vmw_pvscsi 0000:13:00.0: enabling device (0000 -> 0003)
[ 135.366120] vmw_pvscsi: using 64bit dma
[ 135.366720] vmw_pvscsi: max_id: 65
[ 135.366723] vmw_pvscsi: setting ring_pages to 32
[ 135.373774] vmw_pvscsi: enabling reqCallThreshold
[ 135.374414] vmw_pvscsi: driver-based request coalescing enabled
[ 135.374418] vmw_pvscsi: using MSI-X
[ 135.374935] scsi host32: VMware PVSCSI storage adapter rev 2, req/cmp/msg rings: 32/32/1 pages, cmd_per_lun=254
[ 135.375290] vmw_pvscsi 0000:13:00.0: VMware PVSCSI rev 2 host #32
[ 158.124152] pciehp 0000:00:17.0:pcie004: Slot(224): Attention button pressed
[ 158.128314] pciehp 0000:00:17.0:pcie004: Slot(224): Powering off due to button press
[ 163.296929] ------------[ cut here ]------------
[ 163.296931] Trying to free already-free IRQ 16
[ 163.296971] WARNING: CPU: 0 PID: 307 at /build/linux-LuqUgo/linux-4.15.0/kernel/irq/manage.c:1552 __free_irq+0xab/0x2a0
[ 163.296974] Modules linked in: vmw_pvscsi vmw_vsock_vmci_transport vsock nls_iso8859_1 vmw_balloon sb_edac intel_rapl_perf input_leds joydev serio_raw shpchp vmw_vmci mac_hid sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesn...

[vmware-gos-Yuhua (yhzou)]

This is kernel issue. need to get the patch https://patchwork.kernel.org/patch/9985425/

[vmware-gos-Yuhua (yhzou)]

This issue is fixed when check ubuntu 19.04 daily build with kernel 5.0.0-7-generic