* Re: [syzbot] [kvm-x86?] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast
2026-08-09 9:42 [PATCH] KVM: x86/xen: Use read_trylock() for GPC locks in hardirq paths David Woodhouse
@ 2026-08-09 11:34 ` syzbot
0 siblings, 0 replies; 3+ messages in thread
From: syzbot @ 2026-08-09 11:34 UTC (permalink / raw)
To: dwmw2, kvm, linux-kernel, paulmck, pbonzini, seanjc,
suryasaimadhu369, syzkaller-bugs
Hello,
syzbot has tested the proposed patch and the reproducer did not trigger any issue:
Reported-by: syzbot+919877893c9d28162dc2@syzkaller.appspotmail.com
Tested-by: syzbot+919877893c9d28162dc2@syzkaller.appspotmail.com
Tested on:
commit: 230abd62 KVM: pfncache: Use a dedicated SRCU domain in..
git tree: git://git.infradead.org/users/dwmw2/linux.git xen-rcu-fixed
console output: https://syzkaller.appspot.com/x/log.txt?x=110522c6580000
kernel config: https://syzkaller.appspot.com/x/.config?x=9cef045500682f6b
dashboard link: https://syzkaller.appspot.com/bug?extid=919877893c9d28162dc2
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] [kvm-x86?] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast
@ 2026-08-10 11:28 David Woodhouse
2026-08-10 14:00 ` syzbot
0 siblings, 1 reply; 3+ messages in thread
From: David Woodhouse @ 2026-08-10 11:28 UTC (permalink / raw)
To: syzbot+919877893c9d28162dc2; +Cc: kvm, seanjc, pbonzini, suryasaimadhu369
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On Sun, 2026-08-09 at 04:34 +0000, syzbot wrote:
> syzbot has tested the proposed patch and the reproducer did not trigger any issue
I found some though. Reworked:
#syz test: git://git.infradead.org/users/dwmw2/linux.git xen-srcu-fixed
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] [kvm-x86?] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast
2026-08-10 11:28 [syzbot] [kvm-x86?] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast David Woodhouse
@ 2026-08-10 14:00 ` syzbot
0 siblings, 0 replies; 3+ messages in thread
From: syzbot @ 2026-08-10 14:00 UTC (permalink / raw)
To: dwmw2, kvm, linux-kernel, pbonzini, seanjc, suryasaimadhu369,
syzkaller-bugs
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
failed to checkout kernel repo git://git.infradead.org/users/dwmw2/linux.git/xen-srcu-fixed: failed to run ["git" "-c" "core.hooksPath=/dev/null" "fetch" "--force" "73b08201ab8ba1d188f45210a65f33cb30e5efaf" "xen-srcu-fixed"]: exit status 128
Tested on:
commit: [unknown
git tree: git://git.infradead.org/users/dwmw2/linux.git xen-srcu-fixed
kernel config: https://syzkaller.appspot.com/x/.config?x=a94030c847137a18
dashboard link: https://syzkaller.appspot.com/bug?extid=919877893c9d28162dc2
compiler:
Note: no patches were applied.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2026-08-10 14:00 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2026-08-10 11:28 [syzbot] [kvm-x86?] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast David Woodhouse
2026-08-10 14:00 ` syzbot
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2026-08-09 9:42 [PATCH] KVM: x86/xen: Use read_trylock() for GPC locks in hardirq paths David Woodhouse
2026-08-09 11:34 ` [syzbot] [kvm-x86?] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast syzbot
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