QLogic ISP2722-based 16/32Gb Fibre Channel to PCIe Adapter has the VPD access issue too, while read the common pci-sysfs access interface shown as /sys/devices/pci0000:00/0000:00:03.2/0000:0b:00.0/vpd with simple 'cat' could cause system hang and panic: [ 48.219586] Kernel panic - not syncing: An NMI occurred. Depending on your system the reason for the NMI is logged in any one of the following resources: [ 48.219586] 1. Integrated Management Log (IML) [ 48.219586] 2. OA Syslog [ 48.219586] 3. OA Forward Progress Log [ 48.219586] 4. iLO Event Log [ 48.352034] CPU: 0 PID: 15070 Comm: udevadm Not tainted 4.1.12 [ 48.390989] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 12/27/2015 [ 48.431201] 0000000000000086 000000007f0cdf51 ffff880c4fa05d58 ffffffff817193de [ 48.467185] ffffffffa00b42d8 0000000000000075 ffff880c4fa05dd8 ffffffff81714072 [ 48.502631] 0000000000000008 ffff880c4fa05de8 ffff880c4fa05d88 000000007f0cdf51 [ 48.538427] Call Trace: [ 48.549991] <NMI> [<ffffffff817193de>] dump_stack+0x63/0x81 [ 48.577496] [<ffffffff81714072>] panic+0xd0/0x20e [ 48.600598] [<ffffffffa00b390d>] hpwdt_pretimeout+0xdd/0xe0 [hpwdt] [ 48.630913] [<ffffffff81021fc9>] ? sched_clock+0x9/0x10 [ 48.656286] [<ffffffff8101c101>] nmi_handle+0x91/0x170 [ 48.681362] [<ffffffff8101c10c>] ? nmi_handle+0x9c/0x170 [ 48.707383] [<ffffffff8101c5fe>] io_check_error+0x1e/0xa0 [ 48.733603] [<ffffffff8101c719>] default_do_nmi+0x99/0x140 [ 48.759570] [<ffffffff8101c8b4>] do_nmi+0xf4/0x170 [ 48.782977] [<ffffffff817232c5>] end_repeat_nmi+0x1a/0x1e [ 48.809290] [<ffffffff815d724b>] ? pci_conf1_read+0xeb/0x120 [ 48.837782] [<ffffffff815d724b>] ? pci_conf1_read+0xeb/0x120 [ 48.865045] [<ffffffff815d724b>] ? pci_conf1_read+0xeb/0x120 [ 48.892877] <<EOE>> [<ffffffff815db4b3>] raw_pci_read+0x23/0x40 [ 48.923060] [<ffffffff815db4fc>] pci_read+0x2c/0x30 [ 48.947340] [<ffffffff8136f612>] pci_user_read_config_word+0x72/0x110 [ 48.978937] [<ffffffff8136f746>] pci_vpd_pci22_wait+0x96/0x130 [ 49.007983] [<ffffffff8136ff9b>] pci_vpd_pci22_read+0xdb/0x1a0 [ 49.036370] [<ffffffff8136ea30>] pci_read_vpd+0x20/0x30 [ 49.062608] [<ffffffff8137d590>] read_vpd_attr+0x30/0x40 [ 49.088627] [<ffffffff8128e037>] sysfs_kf_bin_read+0x47/0x70 [ 49.116383] [<ffffffff8128d24e>] kernfs_fop_read+0xae/0x180 [ 49.143396] [<ffffffff8120dd97>] __vfs_read+0x37/0x100 [ 49.169059] [<ffffffff812ba7e4>] ? security_file_permission+0x84/0xa0 [ 49.200526] [<ffffffff8120e366>] ? rw_verify_area+0x56/0xe0 [ 49.227578] [<ffffffff8120e476>] vfs_read+0x86/0x140 [ 49.252842] [<ffffffff8120f3f5>] SyS_read+0x55/0xd0 [ 49.277378] [<ffffffff81720f2e>] system_call_fastpath+0x12/0x71 [ 50.349812] Shutting down cpus with NMI [ 50.368388] Kernel Offset: disabled [ 50.385327] drm_kms_helper: panic occurred, switching back to text console So blacklist the access to its VPD. Signed-off-by: Ethan Zhao <ethan.zhao@xxxxxxxxxx> --- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 3a035e07..087a218 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2173,6 +2173,7 @@ static void quirk_blacklist_vpd(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LSI_LOGIC, 0x005f, quirk_blacklist_vpd); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, PCI_ANY_ID, quirk_blacklist_vpd); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_QLOGIC, 0x2261, quirk_blacklist_vpd); /* * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the -- 1.8.3.1
