Date: Fri, 17 Sep 2021 13:21:52 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 258208] [zfs] locks up when using rollback or destroy on both 13.0-RELEASE & sysutils/openzfs port Message-ID: <bug-258208-3630-6gTQSEw5hJ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-258208-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-258208-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D258208 Mark Johnston <markj@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Open --- Comment #6 from Mark Johnston <markj@FreeBSD.org> --- (In reply to Dave Cottlehuber from comment #5) So there is effectively an LOR here: 56 152682 zfs - mi_switch+0xc1 _vm_page_busy_sleep+0x100 vm_page_sleep_if_busy+0x28 vm_object_page_remove+= 0xdf vn_pages_remove+0x4c zfs_rezget+0x35 zfs_resume_fs+0x258 zfs_ioc_rollback+0= x158 zfsdev_ioctl_common+0x4e3 zfsdev_ioctl+0x143 devfs_ioctl+0xc7 vn_ioctl+0x1a4 devfs_ioctl_f+0x1e kern_ioctl+0x26d sys_ioctl+0xf6 amd64_syscall+0x10c fast_syscall_common+0xf8=20 445 168579 ping - mi_switch+0xc1 _sleep+0x1cb rms_rlock_fallback+0x90 zfs_freebsd_getpages+0x52 vnode_pager_getpages+0x41 vm_pager_get_pages+0x22 vm_fault+0x49a vm_fault_trap+0x6d trap_pfault+0x1f8 trap+0x3fd calltrap+0x8 The page array passed to zfs_getpages() is busied upon entry, and then we do ZFS_ENTER(zfsvfs). But zfs_rezget() is called with this lock held and then tries to busy vnode pages. --=20 You are receiving this mail because: You are the assignee for the bug.=
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