> On Sep 7, 2023, at 12:23 PM, Paul E. McKenney <paulmck@xxxxxxxxxx> wrote: > > On Thu, Sep 07, 2023 at 09:17:15AM -0400, Joel Fernandes wrote: >> Hi, >> Just started seeing this on 6.5 stable. It is new and first occurrence: >> >> TREE04 no success message, 234 successful version messages >> [033mWARNING: [mTREE04 GP HANG at 14 torture stat 2 >> [ 38.371120] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g1253 >> f0x0 ->state 0x2 cpu 6 >> [ 38.388342] Call Trace: >> [ 53.741039] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g3637 >> f0x2 ->state 0x2 cpu 6 >> [ 69.093462] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g5501 >> f0x0 ->state 0x2 cpu 6 >> [ 84.450028] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g10505 >> f0x0 ->state 0x2 cpu 6 >> [ 99.815871] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g13781 >> f0x0 ->state 0x2 cpu 6 >> [ 115.166476] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g16544 >> f0x0 ->state 0x2 cpu 6 >> [ 130.550116] ??? Writer stall state RTWS_COND_SYNC_FULL(10) g18941 >> f0x0 ->state 0x2 cpu 6 >> [..] >> >> All logs: >> http://box.joelfernandes.org:9080/job/rcutorture_stable/job/linux-6.5.y/17/artifact/tools/testing/selftests/rcutorture/res/2023.09.07-04.10.25/TREE04/ > > Huh. Does this happen for you in v6.5 mainline? > > Both the code under test (full-state polled grace periods) and the > rcutorture test code are fairly new, so there is some reason for general > suspicion. ;-) Ah. I never saw it on either 6.5 mainline or stable till today. Even on stable I only ever saw it this once. On mainline I have not seen it yet but I do test stable much more since I have been on stable maintenance duty ;-). I will keep an eye on it.. this also happens quite early per that time stamp. thanks, - Joel > > Thanx, Paul
