Bugzilla https://bugzilla.kernel.org/show_bug.cgi?id=202571
The igb commit is commit fb29f76cc5668d8fc9e2b04ebfaf4de4f62e1866 On Tue, Feb 12, 2019 at 7:21 PM Arvind Sankar <nived...@alum.mit.edu> wrote: > > After upgrading to 4.20.8, I got a WARN in my dmesg and I suspect this > change. Reverting it removes this warning. > > I am not subscribed to the list, please Cc me if any follup questions. > > [ 12.457238] ------------[ cut here ]------------ > [ 12.457251] PCI PM: State of device not saved by > igb_runtime_suspend+0x0/0x80 > [ 12.457275] WARNING: CPU: 1 PID: 175 at > drivers/pci/pci-driver.c:1280 pci_pm_runtime_suspend+0x127/0x130 > [ 12.457277] Modules linked in: 8021q zfs(PO) zunicode(PO) zlua(PO) > zcommon(PO) znvpair(PO) zavl(PO) icp(PO) spl(O) zlib_inflate > x86_pkg_temp_thermal kvm_intel kvm coretemp hwmon irqbypass > crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 > crypto_simd cryptd glue_helper intel_cstate intel_uncore > intel_rapl_perf intel_pch_thermal i2c_i801 ipmi_si ipmi_devintf > ipmi_msghandler > [ 12.457318] CPU: 1 PID: 175 Comm: kworker/1:1 Tainted: P > O T 4.20.8 #16 > [ 12.457320] Hardware name: Supermicro Super Server/X10SDV-7TP8F, > BIOS 2.0 06/13/2018 > [ 12.457329] Workqueue: pm pm_runtime_work > [ 12.457337] RIP: 0010:pci_pm_runtime_suspend+0x127/0x130 > [ 12.457340] Code: f7 0f 00 8b 44 24 04 eb a1 44 39 e8 74 9a 80 3d > cb 7b d0 00 00 75 91 48 c7 c7 d8 b3 75 a2 c6 05 bb 7b d0 00 01 e8 fe > 37 cf ff <0f> 0b 31 c0 e9 77 ff ff ff 41 55 41 54 45 31 e4 55 53 48 89 > fb 48 > [ 12.457343] RSP: 0018:ffffb300406abd88 EFLAGS: 00010282 > [ 12.457347] RAX: 0000000000000000 RBX: ffff965fc6ff20b0 RCX: > ffffffffa2829cb8 > [ 12.457350] RDX: 0000000000000001 RSI: 0000000000000082 RDI: > ffffffffa3755d88 > [ 12.457353] RBP: ffffffffa24a7980 R08: 0000000000000001 R09: > 0000000000000442 > [ 12.457355] R10: 0000000000000003 R11: 0000000000000000 R12: > ffff965fc6ff2000 > [ 12.457358] R13: 0000000000000000 R14: ffffffffa1b62550 R15: > 0000000000000000 > [ 12.457361] FS: 0000000000000000(0000) GS:ffff96671f440000(0000) > knlGS:0000000000000000 > [ 12.457365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 12.457368] CR2: 00007fff7670c11c CR3: 00000002c7c0a004 CR4: > 00000000003606e0 > [ 12.457370] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [ 12.457373] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: > 0000000000000400 > [ 12.457374] Call Trace: > [ 12.457387] ? __switch_to_asm+0x34/0x70 > [ 12.457395] __rpm_callback+0x70/0x1b0 > [ 12.457401] ? __switch_to_asm+0x34/0x70 > [ 12.457406] ? pci_dev_put+0x20/0x20 > [ 12.457412] rpm_callback+0x66/0x90 > [ 12.457418] ? pci_dev_put+0x20/0x20 > [ 12.457424] rpm_suspend+0x15a/0x570 > [ 12.457431] pm_runtime_work+0x8c/0xa0 > [ 12.457439] process_one_work+0x1d2/0x350 > [ 12.457446] worker_thread+0x28/0x3d0 > [ 12.457453] ? wq_calc_node_cpumask.constprop.50+0x20/0x20 > [ 12.457457] kthread+0x103/0x120 > [ 12.457462] ? kthread_create_on_node+0x90/0x90 > [ 12.457468] ret_from_fork+0x35/0x40 > [ 12.457472] ---[ end trace aa262aac85ec967a ]---
