reproducer pm-suspend resume server see bunch of msgs
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1694675 Title: r8169:fix "rtl_counters_cond == 1 (loop: 1000, delay: 10)" log spam. Status in linux package in Ubuntu: Fix Released Bug description: a lot of err msgs in kern.log and network connection keep changing in and out please refer to below msgs Linux version 4.4.0-78-generic (buildd@lgw01-11) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) ) #99-Ubuntu SMP Thu Apr 27 15:29:09 UTC 2017 (Ubuntu 4.4.0-78.99-generic 4.4.62) May 31 09:22:44 mnode01 kernel: [ 361.994034] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:22:44 mnode01 kernel: [ 361.994093] r8169 0000:06:00.0 enp6s0: link up May 31 09:23:02 mnode01 kernel: [ 379.994504] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:23:02 mnode01 kernel: [ 379.994564] r8169 0000:06:00.0 enp6s0: link up May 31 09:23:10 mnode01 kernel: [ 388.154990] r8169 0000:06:00.0 enp6s0: rtl_counters_cond == 1 (loop: 1000, delay: 10). May 31 09:23:10 mnode01 kernel: [ 388.167721] r8169 0000:06:00.0 enp6s0: rtl_counters_cond == 1 (loop: 1000, delay: 10). May 31 09:23:12 mnode01 kernel: [ 389.948606] r8169 0000:06:00.0 enp6s0: rtl_counters_cond == 1 (loop: 1000, delay: 10). May 31 09:23:12 mnode01 kernel: [ 389.961218] r8169 0000:06:00.0 enp6s0: rtl_counters_cond == 1 (loop: 1000, delay: 10). May 31 09:23:20 mnode01 kernel: [ 398.002922] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:23:20 mnode01 kernel: [ 398.002978] r8169 0000:06:00.0 enp6s0: link up May 31 09:23:32 mnode01 kernel: [ 409.995280] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:23:32 mnode01 kernel: [ 409.995337] r8169 0000:06:00.0 enp6s0: link up May 31 09:23:44 mnode01 kernel: [ 421.995590] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:23:44 mnode01 kernel: [ 421.995649] r8169 0000:06:00.0 enp6s0: link up May 31 09:23:56 mnode01 kernel: [ 433.999904] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:23:56 mnode01 kernel: [ 433.999965] r8169 0000:06:00.0 enp6s0: link up May 31 09:24:08 mnode01 kernel: [ 446.000178] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:24:08 mnode01 kernel: [ 446.000227] r8169 0000:06:00.0 enp6s0: link up May 31 09:24:20 mnode01 kernel: [ 458.004472] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:24:20 mnode01 kernel: [ 458.004532] r8169 0000:06:00.0 enp6s0: link up May 31 09:24:31 mnode01 kernel: [ 469.033314] r8169 0000:06:00.0 enp6s0: rtl_counters_cond == 1 (loop: 1000, delay: 10). May 31 09:24:31 mnode01 kernel: [ 469.046073] r8169 0000:06:00.0 enp6s0: rtl_counters_cond == 1 (loop: 1000, delay: 10). May 31 09:24:31 mnode01 kernel: [ 469.058512] r8169 0000:06:00.0 enp6s0: rtl_counters_cond == 1 (loop: 1000, delay: 10). May 31 09:24:32 mnode01 kernel: [ 470.000793] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:24:32 mnode01 kernel: [ 470.000851] r8169 0000:06:00.0 enp6s0: link up May 31 09:24:44 mnode01 kernel: [ 481.997147] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:24:44 mnode01 kernel: [ 481.997206] r8169 0000:06:00.0 enp6s0: link up May 31 09:24:56 mnode01 kernel: [ 494.001403] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:24:56 mnode01 kernel: [ 494.001453] r8169 0000:06:00.0 enp6s0: link up May 31 09:25:08 mnode01 kernel: [ 505.997768] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:25:08 mnode01 kernel: [ 505.997826] r8169 0000:06:00.0 enp6s0: link up May 31 09:25:20 mnode01 kernel: [ 518.002082] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:25:20 mnode01 kernel: [ 518.002141] r8169 0000:06:00.0 enp6s0: link up May 31 09:25:32 mnode01 kernel: [ 530.002331] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:25:32 mnode01 kernel: [ 530.002379] r8169 0000:06:00.0 enp6s0: link up May 31 09:25:38 mnode01 kernel: [ 536.588896] SGI XFS with ACLs, security attributes, realtime, no debug enabled May 31 09:25:39 mnode01 kernel: [ 536.637037] JFS: nTxBlock = 8192, nTxLock = 65536 May 31 09:25:39 mnode01 kernel: [ 536.712978] ntfs: driver 2.1.32 [Flags: R/O MODULE]. May 31 09:25:39 mnode01 kernel: [ 536.790129] QNX4 filesystem 0.2.3 registered. May 31 09:25:39 mnode01 kernel: [ 536.948239] raid6: sse2x1 gen() 5682 MB/s May 31 09:25:39 mnode01 kernel: [ 537.016233] raid6: sse2x1 xor() 5613 MB/s May 31 09:25:39 mnode01 kernel: [ 537.084236] raid6: sse2x2 gen() 10905 MB/s May 31 09:25:39 mnode01 kernel: [ 537.152234] raid6: sse2x2 xor() 8848 MB/s May 31 09:25:39 mnode01 kernel: [ 537.220235] raid6: sse2x4 gen() 14157 MB/s May 31 09:25:39 mnode01 kernel: [ 537.288240] raid6: sse2x4 xor() 10597 MB/s May 31 09:25:39 mnode01 kernel: [ 537.288241] raid6: using algorithm sse2x4 gen() 14157 MB/s May 31 09:25:39 mnode01 kernel: [ 537.288243] raid6: .... xor() 10597 MB/s, rmw enabled May 31 09:25:39 mnode01 kernel: [ 537.288244] raid6: using ssse3x2 recovery algorithm May 31 09:25:39 mnode01 kernel: [ 537.302931] xor: automatically using best checksumming function: May 31 09:25:39 mnode01 kernel: [ 537.340235] avx : 22040.000 MB/sec May 31 09:25:39 mnode01 kernel: [ 537.395390] Btrfs loaded May 31 09:25:44 mnode01 kernel: [ 542.006643] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:25:44 mnode01 kernel: [ 542.006694] r8169 0000:06:00.0 enp6s0: link up May 31 09:25:56 mnode01 kernel: [ 553.999013] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:25:56 mnode01 kernel: [ 553.999077] r8169 0000:06:00.0 enp6s0: link up May 31 09:26:08 mnode01 kernel: [ 565.999328] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:26:08 mnode01 kernel: [ 565.999390] r8169 0000:06:00.0 enp6s0: link up May 31 09:26:20 mnode01 kernel: [ 577.999374] r8169 0000:06:00.0 enp6s0: rtl_chipcmd_cond == 1 (loop: 100, delay: 100). May 31 09:26:20 mnode01 kernel: [ 577.999434] r8169 0000:06:00.0 enp6s0: link up below commit seems to patch this issue but not 100% sure (testing) commit f09cf4b7832d029fb22d8f476eac12fc27dde61f Author: Chun-Hao Lin <h...@realtek.com> Date: Wed Feb 24 14:18:42 2016 +0800 r8169:fix "rtl_counters_cond == 1 (loop: 1000, delay: 10)" log spam. There will be a log spam when there is no cable plugged. Please refer to following links. https://bugzilla.kernel.org/show_bug.cgi?id=104351 https://bugzilla.kernel.org/show_bug.cgi?id=107421 This issue is caused by runtime power management. When there is no cable plugged, the driver will be suspend (runtime suspend) by OS and NIC will be put into the D3 state. During this time, if OS call rtl8169_get_stats64() to dump tally counter, because NIC is in D3 state, the register value read by driver will return all 0xff. This will let driver think tally counter flag is not toggled and then sends the warning message "rtl_counters_cond == 1 (loop: 1000, delay: 10)" to kernel log. For fixing this issue, 1.add checking driver's pm runtime status in rtl8169_get_stats64(). 2.dump tally counter before going runtime suspend for counter accuracy in runtime suspend. Signed-off-by: Chunhao Lin <h...@realtek.com> Signed-off-by: David S. 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