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charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endp= oint [ 3.290039][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000= conventional PCI endpoint [ 3.312848][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed= by PIIX4 ACPI [ 3.318949][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000= conventional PCI endpoint [ 3.329795][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 3.337001][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 3.361051][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000= conventional PCI endpoint [ 3.373573][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 3.382024][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 3.402560][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000= conventional PCI endpoint [ 3.410376][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 3.434234][ T1] pci 0000:00:05.0: Video device with shadowed ROM at = [mem 0x000c0000-0x000dffff] [ 3.441110][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00= conventional PCI endpoint [ 3.450821][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 3.473565][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00= conventional PCI endpoint [ 3.482224][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 3.488084][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 3.532666][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 3.540225][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 3.546704][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 3.552639][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 3.557841][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 3.574126][ T1] iommu: Default domain type: Translated [ 3.574126][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 3.579938][ T1] SCSI subsystem initialized [ 3.588656][ T1] ACPI: bus type USB registered [ 3.590200][ T1] usbcore: registered new interface driver usbfs [ 3.591536][ T1] usbcore: registered new interface driver hub [ 3.592765][ T1] usbcore: registered new device driver usb [ 3.597008][ T1] mc: Linux media interface: v0.10 [ 3.597222][ T1] videodev: Linux video capture interface: v2.00 [ 3.599410][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.601032][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 = Rodolfo Giometti [ 3.603659][ T1] PTP clock support registered [ 3.627151][ T1] EDAC MC: Ver: 3.0.0 [ 3.633364][ T1] Advanced Linux Sound Architecture Driver Initialized= . [ 3.641413][ T1] Bluetooth: Core ver 2.22 [ 3.642536][ T1] NET: Registered PF_BLUETOOTH protocol family [ 3.643486][ T1] Bluetooth: HCI device and connection manager initial= ized [ 3.645664][ T1] Bluetooth: HCI socket layer initialized [ 3.647000][ T1] Bluetooth: L2CAP socket layer initialized [ 3.648804][ T1] Bluetooth: SCO socket layer initialized [ 3.649970][ T1] NET: Registered PF_ATMPVC protocol family [ 3.650883][ T1] NET: Registered PF_ATMSVC protocol family [ 3.652410][ T1] NetLabel: Initializing [ 3.653688][ T1] NetLabel: domain hash size =3D 128 [ 3.654598][ T1] NetLabel: protocols =3D UNLABELED CIPSOv4 CALIPSO [ 3.656547][ T1] NetLabel: unlabeled traffic allowed by default [ 3.658572][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.660263][ T1] NET: Registered PF_NFC protocol family [ 3.662155][ T1] PCI: Using ACPI for IRQ routing [ 3.664326][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.665828][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.666971][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes= =3Dio+mem,owns=3Dio+mem,locks=3Dnone [ 3.667008][ T1] vgaarb: loaded [ 3.672240][ T1] clocksource: Switched to clocksource kvm-clock [ 3.688400][ T1] VFS: Disk quotas dquot_6.6.0 [ 3.695631][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4= 096 bytes) [ 3.700793][ T1] netfs: FS-Cache loaded [ 3.703476][ T1] CacheFiles: Loaded [ 3.705257][ T1] TOMOYO: 2.6.0 [ 3.706280][ T1] Mandatory Access Control activated. [ 3.712222][ T1] AppArmor: AppArmor Filesystem Enabled [ 3.714157][ T1] pnp: PnP ACPI init [ 3.736384][ T1] pnp: PnP ACPI: found 7 devices [ 3.842531][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xf= fffff, max_idle_ns: 2085701024 ns [ 3.845775][ T1] NET: Registered PF_INET protocol family [ 3.852225][ T1] IP idents hash table entries: 131072 (order: 8, 1048= 576 bytes, vmalloc) [ 3.865960][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (o= rder: 6, 294912 bytes, vmalloc) [ 3.869201][ T1] Table-perturb hash table entries: 65536 (order: 6, 2= 62144 bytes, vmalloc) [ 3.873508][ T1] TCP established hash table entries: 65536 (order: 7,= 524288 bytes, vmalloc) [ 3.886899][ T1] TCP bind hash table entries: 65536 (order: 11, 94371= 84 bytes, vmalloc hugepage) [ 3.899560][ T1] TCP: Hash tables configured (established 65536 bind = 65536) [ 3.905432][ T1] MPTCP token hash table entries: 8192 (order: 7, 7208= 96 bytes, vmalloc) [ 3.913210][ T1] UDP hash table entries: 4096 (order: 8, 1048576 byte= s, vmalloc) [ 3.919893][ T1] UDP-Lite hash table entries: 4096 (order: 8, 1048576= bytes, vmalloc) [ 3.924198][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 3.939126][ T1] RPC: Registered named UNIX socket transport module. [ 3.940606][ T1] RPC: Registered udp transport module. [ 3.942512][ T1] RPC: Registered tcp transport module. [ 3.943938][ T1] RPC: Registered tcp-with-tls transport module. [ 3.945413][ T1] RPC: Registered tcp NFSv4.1 backchannel transport mo= dule. [ 3.962055][ T1] NET: Registered PF_XDP protocol family [ 3.963139][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 windo= w] [ 3.964999][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff windo= w] [ 3.966783][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bff= ff window] [ 3.969251][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfef= ff window] [ 3.972090][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 3.974068][ T1] PCI: CLS 0 bytes, default 64 [ 3.982313][ T52] BUG: unable to handle page fault for address: ffffff= ffffffffea [ 3.984585][ T52] #PF: supervisor read access in kernel mode [ 3.986189][ T52] #PF: error_code(0x0000) - not-present page [ 3.987390][ T52] PGD db82067 P4D db82067 PUD db84067 PMD 0=20 [ 3.987390][ T52] Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI [ 3.987390][ T52] CPU: 1 UID: 0 PID: 52 Comm: kworker/u8:3 Not tainted= 6.12.0-syzkaller-09073-g9f16d5e6f220-dirty #0 [ 3.987390][ T52] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 09/13/2024 [ 3.987390][ T52] Workqueue: async async_run_entry_fn [ 3.987390][ T52] RIP: 0010:__folio_put+0x239/0x470 [ 3.987390][ T52] Code: ff ff fb ff ff 80 fa 02 0f 9e c1 84 d2 0f 95 c= 2 84 d1 0f 85 04 02 00 00 3c 01 0f 9e c2 84 c0 0f 95 c0 84 c2 0f 85 f2 01 0= 0 00 <4c> 8b 24 25 ea ff ff ff 31 ff 49 c1 ec 09 41 83 e4 01 44 89 e6 e8 [ 3.997515][ T1] PCI-DMA: Using software bounce buffering for IO (SWI= OTLB) [ 3.997439][ T52] RSP: 0000:ffffc90000bd7a38 EFLAGS: 00010246 [ 4.002041][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00= 000000b8600000] (64MB) [ 3.997439][ T52] RAX: fffffbffffffff00 RBX: ffffea00006dfc00 RCX: fff= fffff81c85201 [ 4.004393][ T1] ACPI: bus type thunderbolt registered [ 3.997439][ T52] RDX: fffffbffffffff01 RSI: 0000000000000008 RDI: fff= fffffffffffea [ 4.007324][ T52] RBP: 1ffff9200017af47 R08: 0000000000000000 R09: fff= ffbfffffffffe [ 4.007324][ T52] R10: fffffffffffffff1 R11: 0000000000000002 R12: 000= 0000000000002 [ 4.010853][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters= , 10737418240 ms ovfl timer [ 4.007324][ T52] R13: ffffffff91b2f320 R14: ffffffff91b2f320 R15: fff= f8881472f14c8 [ 4.007324][ T52] FS: 0000000000000000(0000) GS:ffff8880b8700000(0000= ) knlGS:0000000000000000 [ 4.007324][ T52] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.007324][ T52] CR2: ffffffffffffffea CR3: 000000000db7e000 CR4: 000= 00000003506f0 [ 4.007324][ T52] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000= 0000000000000 [ 4.007324][ T52] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 000= 0000000000400 [ 4.007324][ T52] Call Trace: [ 4.007324][ T52] [ 4.007324][ T52] ? __die+0x1e/0x60 [ 4.007324][ T52] ? page_fault_oops+0x3b6/0xb80 [ 4.007324][ T52] ? __pfx_page_fault_oops+0x10/0x10 [ 4.007324][ T52] ? __pfx_lock_release+0x10/0x10 [ 4.007324][ T52] ? trace_lock_acquire+0x146/0x1e0 [ 4.007324][ T52] ? is_prefetch.constprop.0+0x9d/0x520 [ 4.007324][ T52] ? lock_acquire+0x2f/0xb0 [ 4.007324][ T52] ? search_bpf_extables+0x36/0x320 [ 4.007324][ T52] ? bpf_ksym_find+0x124/0x1c0 [ 4.007324][ T52] ? __pfx_is_prefetch.constprop.0+0x10/0x10 [ 4.007324][ T52] ? fixup_exception+0x10c/0xaf0 [ 4.007324][ T52] ? kernelmode_fixup_or_oops.constprop.0+0xb8/0xe0 [ 4.007324][ T52] ? __bad_area_nosemaphore+0x390/0x6a0 [ 4.007324][ T52] ? spurious_kernel_fault+0x234/0x3a0 [ 4.007324][ T52] ? hlock_class+0x4e/0x130 [ 4.007324][ T52] ? do_kern_addr_fault+0x5b/0x80 [ 4.007324][ T52] ? exc_page_fault+0xb1/0xc0 [ 4.007324][ T52] ? asm_exc_page_fault+0x26/0x30 [ 4.007324][ T52] ? __folio_put+0x1f1/0x470 [ 4.007324][ T52] ? __folio_put+0x239/0x470 [ 4.007324][ T52] ? __folio_put+0x1ff/0x470 [ 4.007324][ T52] ? __pfx___folio_put+0x10/0x10 [ 4.007324][ T52] ? free_large_kmalloc+0xaa/0x140 [ 4.007324][ T52] ? lockdep_hardirqs_on+0x7c/0x110 [ 4.007324][ T52] unpack_to_rootfs+0x4c6/0x820 [ 4.007324][ T52] ? __pfx_mark_lock+0x10/0x10 [ 4.007324][ T52] ? __pfx_unpack_to_rootfs+0x10/0x10 [ 4.007324][ T52] ? find_held_lock+0x2d/0x110 [ 4.007324][ T52] ? async_run_entry_fn+0x35/0x530 [ 4.007324][ T52] ? __pfx_do_populate_rootfs+0x10/0x10 [ 4.007324][ T52] ? do_populate_rootfs+0x8e/0x770 [ 4.007324][ T52] do_populate_rootfs+0x8e/0x770 [ 4.007324][ T52] ? __pfx_do_populate_rootfs+0x10/0x10 [ 4.007324][ T52] ? kvm_clock_get_cycles+0x40/0x70 [ 4.007324][ T52] ? ktime_get+0x1ac/0x300 [ 4.007324][ T52] ? __pfx_do_populate_rootfs+0x10/0x10 [ 4.007324][ T52] async_run_entry_fn+0x9c/0x530 [ 4.007324][ T52] process_one_work+0x958/0x1b30 [ 4.007324][ T52] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4.007324][ T52] ? __pfx_process_one_work+0x10/0x10 [ 4.007324][ T52] ? rcu_is_watching+0x12/0xc0 [ 4.007324][ T52] ? assign_work+0x1a0/0x250 [ 4.007324][ T52] worker_thread+0x6c8/0xf00 [ 4.007324][ T52] ? __kthread_parkme+0x148/0x220 [ 4.007324][ T52] ? __pfx_worker_thread+0x10/0x10 [ 4.007324][ T52] kthread+0x2c1/0x3a0 [ 4.007324][ T52] ? _raw_spin_unlock_irq+0x23/0x50 [ 4.007324][ T52] ? __pfx_kthread+0x10/0x10 [ 4.007324][ T52] ret_from_fork+0x45/0x80 [ 4.007324][ T52] ? __pfx_kthread+0x10/0x10 [ 4.007324][ T52] ret_from_fork_asm+0x1a/0x30 [ 4.007324][ T52] [ 4.007324][ T52] Modules linked in: [ 4.007324][ T52] CR2: ffffffffffffffea [ 4.007324][ T52] ---[ end trace 0000000000000000 ]--- [ 4.007324][ T52] RIP: 0010:__folio_put+0x239/0x470 [ 4.007324][ T52] Code: ff ff fb ff ff 80 fa 02 0f 9e c1 84 d2 0f 95 c= 2 84 d1 0f 85 04 02 00 00 3c 01 0f 9e c2 84 c0 0f 95 c0 84 c2 0f 85 f2 01 0= 0 00 <4c> 8b 24 25 ea ff ff ff 31 ff 49 c1 ec 09 41 83 e4 01 44 89 e6 e8 [ 4.007324][ T52] RSP: 0000:ffffc90000bd7a38 EFLAGS: 00010246 [ 4.007324][ T52] RAX: fffffbffffffff00 RBX: ffffea00006dfc00 RCX: fff= fffff81c85201 [ 4.007324][ T52] RDX: fffffbffffffff01 RSI: 0000000000000008 RDI: fff= fffffffffffea [ 4.007324][ T52] RBP: 1ffff9200017af47 R08: 0000000000000000 R09: fff= ffbfffffffffe [ 4.007324][ T52] R10: fffffffffffffff1 R11: 0000000000000002 R12: 000= 0000000000002 [ 4.007324][ T52] R13: ffffffff91b2f320 R14: ffffffff91b2f320 R15: fff= f8881472f14c8 [ 4.007324][ T52] FS: 0000000000000000(0000) GS:ffff8880b8700000(0000= ) knlGS:0000000000000000 [ 4.007324][ T52] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4.007324][ T52] CR2: ffffffffffffffea CR3: 000000000db7e000 CR4: 000= 00000003506f0 [ 4.007324][ T52] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000= 0000000000000 [ 4.007324][ T52] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 000= 0000000000400 [ 4.007324][ T52] Kernel panic - not syncing: Fatal exception [ 4.007324][ T52] Rebooting in 86400 seconds.. syzkaller build log: go env (err=3D) GO111MODULE=3D'auto' GOARCH=3D'amd64' GOBIN=3D'' GOCACHE=3D'/syzkaller/.cache/go-build' GOENV=3D'/syzkaller/.config/go/env' GOEXE=3D'' GOEXPERIMENT=3D'' GOFLAGS=3D'' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMODCACHE=3D'/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs/linux/gopath' GOPRIVATE=3D'' GOPROXY=3D'https://proxy.golang.org,direct' GOROOT=3D'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.22.7' GCCGO=3D'gccgo' GOAMD64=3D'v1' AR=3D'ar' CC=3D'gcc' CXX=3D'g++' CGO_ENABLED=3D'1' GOMOD=3D'/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mo= d' GOWORK=3D'' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' PKG_CONFIG=3D'pkg-config' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build2089203793=3D/tmp/go-build -gno-record-gc= c-switches' git status (err=3D) HEAD detached at 571351cb80 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sy= s/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env bin/syz-sysgen go fmt ./sys/... >/dev/null touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/google= /syzkaller/prog.GitRevision=3D571351cb80e526bf973c8f11c46fa7f3bbc2da1e -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20241118-105802'" "-tags= =3Dsyz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execpr= og github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wfr= ame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-forma= t-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -= static-pie -std=3Dc++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linu= x=3D1 -DGOARCH_amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"571351cb80e526bf973c8f11c46fa7f3bb= c2da1e\" /usr/bin/ld: /tmp/cctrbPCi.o: in function `test_cover_filter()': executor.cc:(.text+0x1426b): warning: the use of `tempnam' is dangerous, be= tter use `mkstemp' /usr/bin/ld: /tmp/cctrbPCi.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or linking Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D16fadee8580000 Tested on: commit: 9f16d5e6 Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3D47cc5fc1922531f dashboard link: https://syzkaller.appspot.com/bug?extid=3D9f9a7f73fb079b238= 7a6 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Deb= ian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D126665305800= 00