Date: Sat, 24 Jan 2026 00:32:22 +0000 From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 1f6db7d73474 - stable/15 - swap_release_by_cred*(): give some additional info on panics due to underflow Message-ID: <69741316.b197.485c1f6b@gitrepo.freebsd.org>
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The branch stable/15 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=1f6db7d73474a823723473a88e5af0917f93f2e9 commit 1f6db7d73474a823723473a88e5af0917f93f2e9 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2026-01-02 09:31:54 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2026-01-24 00:26:45 +0000 swap_release_by_cred*(): give some additional info on panics due to underflow (cherry picked from commit 7361727d4584b5e303183c836497ae2754ce0e53) --- sys/vm/swap_pager.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c index ab95bde34ceb..e0bdca07ff0f 100644 --- a/sys/vm/swap_pager.c +++ b/sys/vm/swap_pager.c @@ -239,7 +239,8 @@ swap_release_by_cred_rlimit(u_long pdecr, struct ucred *cred) #ifdef INVARIANTS prev = atomic_fetchadd_long(&uip->ui_vmsize, -pdecr); KASSERT(prev >= pdecr, - ("negative vmsize for uid %d\n", uip->ui_uid)); + ("negative vmsize for uid %d, prev %#jx decr %#jx\n", + uip->ui_uid, (uintmax_t)prev, (uintmax_t)pdecr)); #else atomic_subtract_long(&uip->ui_vmsize, pdecr); #endif @@ -373,7 +374,8 @@ swap_release_by_cred(vm_ooffset_t decr, struct ucred *cred) pdecr = atop(decr); #ifdef INVARIANTS prev = atomic_fetchadd_long(&swap_reserved, -pdecr); - KASSERT(prev >= pdecr, ("swap_reserved < decr")); + KASSERT(prev >= pdecr, ("swap_reserved %#jx < decr %#jx", + (uintmax_t)prev, (uintmax_t)pdecr)); #else atomic_subtract_long(&swap_reserved, pdecr); #endifhome | help
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