On 11/26/20 6:51 AM, Martin Pieuchot wrote: > On 25/11/20(Wed) 19:41, AIsha Tammy wrote: >> Replicable bug that has happened from sysupgrading to snapshot. >> VPS was working perfectly until this sysupgrade. >> >> VPS boots - drops to kernel panic ddb >> >> Seems to be some mutex issue? >> Had to manually copy information cuz weird web console, so my apologies >> if this isn't enough information. > What is the date of the snapshots? If you can reproduce this could you > give us the output of the "trace" command? > > Thanks, > Martin >
Yes, reproducible crashes on multiple reboots. My slow brain only just noticed some relevant information that might help: TID PID UID PRFLAGS PFLAGS CPU COMMAND 129538 30651 0 0x14000 0x200 0 pagedaemon These are yesterdays snapshots, I just did the sysupgrade yesterday. When I boot with boot -s (no crash when doing this) and do uname -a: OpenBSD 6.8 Generic#182 amd64 (does pagedaemon not run in boot -s?) trace - ddb> trace db_enter() at db_enter+0x10 panic(ffffffff81dcd47c) at panic+0x12a mtx_enter(ffffffffB219ed00) at mtx_enter+0x81 uvm_objfree(fffffd8015f2c9a0) at uvm_objfree+0x61 buf_dealloc_mem(fffffd8015f2c8e0) at buf_dealloc_mem+0x7c buf_put(fffffd8O15f2c8e0) at buf _put+Oxcd brelse(fffffd8O15f2c8e0) at brelse+0x3df sd_buf_done(fffffd8014a27028) at sd_buf_done+0xf9 vioblk_vq_done (ffff8000000c 7050) at vioblk_vq_done+0x6f virtio_check_vqs (ffff80000009ce00) at virtio_check_vqs+0xfe intr_handler (ffff80000e6dea70, ffff800000047700) at intr_handler+0x38 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x18f mtx_enter (fffffd8002699680) at mtx_enter+0xb uvm_pagedeactivate(fffffd800Z2699680) at uvm_pagedeactivate+0x105 uyvmpd_scan() at uvmpd_scan+0x259 uvm_pageout (ffff8000ffff9718) at uvm_pageout +0x375 end trace frame: 0x0, count: -16
