Re: Panic: cache_vop_rename: lingering negative entry
Date: Tue, 07 Apr 2026 18:20:55 UTC
On 7 Apr 2026, at 18:53, Konstantin Belousov <kib@freebsd.org> wrote: > > On Tue, Apr 07, 2026 at 05:02:05PM +0200, Jan Martin Mikkelsen wrote: >> Hi, >> >> I am consistently getting the panic below while building lang/perl5.42. This is the command from the perl build that triggers the panic: >> >> /usr/bin/strip /ports-work/usr/ports/lang/perl5.42/work/stage/usr/local/bin/perl5.42.0 >> >> CURRENT on aarch64, with a kernel from last week, also with a later one from the weekend. A kernel from mid-January worked fine. >> >> I can reproduce on demand, no parallelism in the build required. >> >> Does this look familiar to anyone? >> >> panic: cache_vop_rename: lingering negative entry >> cpuid = 4 >> time = 1775410763 >> KDB: stack backtrace: >> db_trace_self() at db_trace_self >> db_trace_self_wrapper() at db_trace_self_wrapper+0x38 >> vpanic() at vpanic+0x1a0 >> panic() at panic+0x48 >> cache_vop_rename() at cache_vop_rename+0xb0 >> zfs_do_rename() at zfs_do_rename+0xafc >> zfs_freebsd_rename() at zfs_freebsd_rename+0x5c >> VOP_RENAME_APV() at VOP_RENAME_APV+0x44 >> kern_renameat () at kern_renameat+0x574 >> do_el0_sync() at do_el0_sync+0x5f8 >> handle_el0_sync() at handle_el0_sync+0x4c >> --- exception, esr 0x56000000 >> KDB: enter: panic >> [ thread pid 81230 tid 101738 ] >> Stopped at kdb_enter+0x48: str xzr, [x19, #3072] > > Is it reproducable on UFS and/or tmpfs? Successful completion (no panic) when the work directory is on UFS, and when the work directory is on tmpfs. I didn’t try multiple times, but it never works on ZFS. Regards, Jan M.