Re: git: 8ef0c11e7ce7 - main - nfsclient: upgrade vnode lock in VOP_OPEN()/VOP_CLOSE() if we need to flush buffers
- Reply: Konstantin Belousov : "Re: git: 8ef0c11e7ce7 - main - nfsclient: upgrade vnode lock in VOP_OPEN()/VOP_CLOSE() if we need to flush buffers"
- In reply to: Konstantin Belousov : "Re: git: 8ef0c11e7ce7 - main - nfsclient: upgrade vnode lock in VOP_OPEN()/VOP_CLOSE() if we need to flush buffers"
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Date: Wed, 24 Nov 2021 08:01:56 UTC
On 2021-Nov-24 05:12:19 +0200, Konstantin Belousov <kostikbel@gmail.com> wrote: >Try this (combined two patches). That's helped. I can now swapon and swapoff but not actually use swap: KDB: stack backtrace: db_trace_self() at db_trace_self db_trace_self_wrapper() at db_trace_self_wrapper+0x30 assert_vop_locked() at assert_vop_locked+0x58 VOP_STRATEGY_APV() at VOP_STRATEGY_APV+0x54 bufstrategy() at bufstrategy+0x4c swap_pager_putpages() at swap_pager_putpages+0x108 vm_pageout_flush() at vm_pageout_flush+0x108 vm_pageout_cluster() at vm_pageout_cluster+0x464 vm_pageout_laundry_worker() at vm_pageout_laundry_worker+0x910 fork_exit() at fork_exit+0x74 fork_trampoline() at fork_trampoline+0x14 vnode 0xffffa00008840700: type VREG usecount 1, writecount 0, refcount 2 seqc users 0 hold count flags () flags (VV_VMSIZEVNLOCK) v_object 0xffffa00008df3738 ref 0 pages 0 cleanbuf 0 dirtybuf 0 lock type nfs: UNLOCKED fileid 30984 fsid 0x3a3a00ff01 VOP_STRATEGY: 0xffffa00008840700 is not locked but should be KDB: enter: lock violation -- Peter Jeremy