Re: [syzbot] [sound?] possible deadlock in snd_pcm_period_elapsed (4)
From: syzbot
Date: Fri Mar 15 2024 - 19:53:11 EST
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
scheduler registered.
[ 20.046212][ T1] IPVS: [twos] scheduler registered.
[ 20.052487][ T1] IPVS: [sip] pe registered.
[ 20.058236][ T1] ipip: IPv4 and MPLS over IPv4 tunneling driver
[ 20.068626][ T1] gre: GRE over IPv4 demultiplexor driver
[ 20.074591][ T1] ip_gre: GRE over IPv4 tunneling driver
[ 20.088795][ T1] IPv4 over IPsec tunneling driver
[ 20.098760][ T1] Initializing XFRM netlink socket
[ 20.104824][ T1] IPsec XFRM device driver
[ 20.109872][ T1] NET: Registered PF_INET6 protocol family
[ 20.126622][ T1] Segment Routing with IPv6
[ 20.131497][ T1] RPL Segment Routing with IPv6
[ 20.137569][ T1] In-situ OAM (IOAM) with IPv6
[ 20.143198][ T1] mip6: Mobile IPv6
[ 20.150447][ T1] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 20.163905][ T1] ip6_gre: GRE over IPv6 tunneling driver
[ 20.173318][ T1] NET: Registered PF_PACKET protocol family
[ 20.180115][ T1] NET: Registered PF_KEY protocol family
[ 20.185979][ T1] Bridge firewalling registered
[ 20.191499][ T1] NET: Registered PF_X25 protocol family
[ 20.197301][ T1] X25: Linux Version 0.2
[ 20.239984][ T1] NET: Registered PF_NETROM protocol family
[ 20.286824][ T1] NET: Registered PF_ROSE protocol family
[ 20.292725][ T1] NET: Registered PF_AX25 protocol family
[ 20.298720][ T1] can: controller area network core
[ 20.304462][ T1] NET: Registered PF_CAN protocol family
[ 20.310192][ T1] can: raw protocol
[ 20.314261][ T1] can: broadcast manager protocol
[ 20.319507][ T1] can: netlink gateway - max_hops=1
[ 20.325224][ T1] can: SAE J1939
[ 20.328777][ T1] can: isotp protocol (max_pdu_size 8300)
[ 20.335062][ T1] Bluetooth: RFCOMM TTY layer initialized
[ 20.341008][ T1] Bluetooth: RFCOMM socket layer initialized
[ 20.347605][ T1] Bluetooth: RFCOMM ver 1.11
[ 20.352523][ T1] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 20.359022][ T1] Bluetooth: BNEP filters: protocol multicast
[ 20.365382][ T1] Bluetooth: BNEP socket layer initialized
[ 20.371175][ T1] Bluetooth: CMTP (CAPI Emulation) ver 1.0
[ 20.377149][ T1] Bluetooth: CMTP socket layer initialized
[ 20.383020][ T1] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 20.390320][ T1] Bluetooth: HIDP socket layer initialized
[ 20.398622][ T1] NET: Registered PF_RXRPC protocol family
[ 20.405217][ T1] Key type rxrpc registered
[ 20.409717][ T1] Key type rxrpc_s registered
[ 20.415444][ T1] NET: Registered PF_KCM protocol family
[ 20.422288][ T1] lec:lane_module_init: lec.c: initialized
[ 20.428813][ T1] mpoa:atm_mpoa_init: mpc.c: initialized
[ 20.434819][ T1] l2tp_core: L2TP core driver, V2.0
[ 20.440043][ T1] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[ 20.445986][ T1] l2tp_ip: L2TP IP encapsulation support (L2TPv3)
[ 20.453014][ T1] l2tp_netlink: L2TP netlink interface
[ 20.459661][ T1] l2tp_eth: L2TP ethernet pseudowire support (L2TPv3)
[ 20.467052][ T1] l2tp_ip6: L2TP IP encapsulation support for IPv6 (L2TPv3)
[ 20.474967][ T1] NET: Registered PF_PHONET protocol family
[ 20.481779][ T1] 8021q: 802.1Q VLAN Support v1.8
[ 20.498499][ T1] DCCP: Activated CCID 2 (TCP-like)
[ 20.504156][ T1] DCCP: Activated CCID 3 (TCP-Friendly Rate Control)
[ 20.511295][ T1] DCCP is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
[ 20.522532][ T1] sctp: Hash tables configured (bind 32/56)
[ 20.530588][ T1] NET: Registered PF_RDS protocol family
[ 20.537571][ T1] Registered RDS/infiniband transport
[ 20.544168][ T1] Registered RDS/tcp transport
[ 20.549028][ T1] tipc: Activated (version 2.0.0)
[ 20.554726][ T1] NET: Registered PF_TIPC protocol family
[ 20.561546][ T1] tipc: Started in single node mode
[ 20.567475][ T1] NET: Registered PF_SMC protocol family
[ 20.573541][ T1] 9pnet: Installing 9P2000 support
[ 20.579112][ T1] NET: Registered PF_CAIF protocol family
[ 20.588434][ T1] NET: Registered PF_IEEE802154 protocol family
[ 20.595147][ T1] Key type dns_resolver registered
[ 20.600428][ T1] Key type ceph registered
[ 20.605307][ T1] libceph: loaded (mon/osd proto 15/24)
[ 20.612071][ T1] batman_adv: B.A.T.M.A.N. advanced 2024.1 (compatibility version 15) loaded
[ 20.621780][ T1] openvswitch: Open vSwitch switching datapath
[ 20.630000][ T1] NET: Registered PF_VSOCK protocol family
[ 20.636459][ T1] mpls_gso: MPLS GSO support
[ 20.656569][ T1] IPI shorthand broadcast: enabled
[ 20.661987][ T1] AVX2 version of gcm_enc/dec engaged.
[ 20.667932][ T1] AES CTR mode by8 optimization enabled
[ 21.651138][ T1] sched_clock: Marking stable (21600020702, 43682234)->(21641677555, 2025381)
[ 21.665130][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level
[ 21.676589][ T1] registered taskstats version 1
[ 21.691534][ T1] Loading compiled-in X.509 certificates
[ 21.701390][ T1] Loaded X.509 cert 'Build time autogenerated kernel key: caf27e718a03c2875c0f3e9da2fdca81dac83f88'
[ 21.935630][ T1] zswap: loaded using pool lzo/zsmalloc
[ 21.942820][ T1] debug_vm_pgtable: [debug_vm_pgtable ]: Validating architecture page table helpers
[ 22.363865][ T1] ------------[ cut here ]------------
[ 22.369435][ T1] refcount_t: decrement hit 0; leaking memory.
[ 22.375980][ T1] WARNING: CPU: 1 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0
[ 22.385786][ T1] Modules linked in:
[ 22.389701][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 6.8.0-syzkaller-11063-g277100b3d5fe-dirty #0
[ 22.401469][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
[ 22.411821][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 22.418047][ T1] Code: b2 00 00 00 e8 a7 9b f5 fc 5b 5d c3 cc cc cc cc e8 9b 9b f5 fc c6 05 78 1e d2 0a 01 90 48 c7 c7 60 da fd 8b e8 17 61 b8 fc 90 <0f> 0b 90 90 eb d9 e8 7b 9b f5 fc c6 05 55 1e d2 0a 01 90 48 c7 c7
[ 22.438852][ T1] RSP: 0000:ffffc90000067668 EFLAGS: 00010246
[ 22.445745][ T1] RAX: 033873f32e959400 RBX: ffff8880324819fc RCX: ffff888014fc8000
[ 22.453986][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 22.462526][ T1] RBP: 0000000000000004 R08: ffffffff8157df32 R09: fffffbfff1bf9660
[ 22.471060][ T1] R10: dffffc0000000000 R11: fffffbfff1bf9660 R12: ffffea0001004000
[ 22.479700][ T1] R13: 0000000000000000 R14: 0000000000000000 R15: ffffea0001004008
[ 22.487826][ T1] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
[ 22.497607][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 22.504295][ T1] CR2: 0000000000000000 CR3: 000000000df32000 CR4: 00000000003506f0
[ 22.512391][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 22.520813][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 22.528932][ T1] Call Trace:
[ 22.532611][ T1] <TASK>
[ 22.535936][ T1] ? __warn+0x163/0x4b0
[ 22.540206][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 22.546004][ T1] ? report_bug+0x2b3/0x500
[ 22.550821][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 22.556437][ T1] ? handle_bug+0x3e/0x70
[ 22.560824][ T1] ? exc_invalid_op+0x1a/0x50
[ 22.566609][ T1] ? asm_exc_invalid_op+0x1a/0x20
[ 22.572222][ T1] ? __warn_printk+0x292/0x360
[ 22.577412][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 22.582973][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 22.588927][ T1] free_unref_page_prepare+0x95d/0xa80
[ 22.594950][ T1] free_unref_page+0x37/0x3f0
[ 22.599804][ T1] free_contig_range+0x9e/0x160
[ 22.605030][ T1] destroy_args+0x8a/0x890
[ 22.609936][ T1] debug_vm_pgtable+0x4be/0x550
[ 22.615039][ T1] ? __pfx_debug_vm_pgtable+0x10/0x10
[ 22.620764][ T1] ? __pfx_add_device_randomness+0x10/0x10
[ 22.627385][ T1] ? __pfx_debug_vm_pgtable+0x10/0x10
[ 22.633103][ T1] do_one_initcall+0x238/0x830
[ 22.638015][ T1] ? __pfx_debug_vm_pgtable+0x10/0x10
[ 22.643644][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 22.650443][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 22.656040][ T1] ? __pfx_parse_args+0x10/0x10
[ 22.660908][ T1] ? do_initcalls+0x1c/0x80
[ 22.665859][ T1] ? rcu_is_watching+0x15/0xb0
[ 22.670696][ T1] do_initcall_level+0x157/0x210
[ 22.675732][ T1] do_initcalls+0x3f/0x80
[ 22.680130][ T1] kernel_init_freeable+0x435/0x5d0
[ 22.685954][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 22.691972][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 22.699054][ T1] ? __pfx_kernel_init+0x10/0x10
[ 22.704428][ T1] ? rcu_is_watching+0x15/0xb0
[ 22.709362][ T1] ? __pfx_kernel_init+0x10/0x10
[ 22.714513][ T1] kernel_init+0x1d/0x2b0
[ 22.719075][ T1] ret_from_fork+0x4b/0x80
[ 22.723973][ T1] ? __pfx_kernel_init+0x10/0x10
[ 22.729016][ T1] ret_from_fork_asm+0x1a/0x30
[ 22.734205][ T1] </TASK>
[ 22.737838][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 22.745594][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 6.8.0-syzkaller-11063-g277100b3d5fe-dirty #0
[ 22.758472][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
[ 22.768882][ T1] Call Trace:
[ 22.772150][ T1] <TASK>
[ 22.775081][ T1] dump_stack_lvl+0x241/0x360
[ 22.779750][ T1] ? __pfx_dump_stack_lvl+0x10/0x10
[ 22.785102][ T1] ? __pfx__printk+0x10/0x10
[ 22.789812][ T1] ? vscnprintf+0x5d/0x90
[ 22.794277][ T1] panic+0x349/0x860
[ 22.798282][ T1] ? __warn+0x172/0x4b0
[ 22.802468][ T1] ? __pfx_panic+0x10/0x10
[ 22.807313][ T1] ? ret_from_fork_asm+0x1a/0x30
[ 22.812449][ T1] __warn+0x31e/0x4b0
[ 22.816898][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 22.823360][ T1] report_bug+0x2b3/0x500
[ 22.827814][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 22.833548][ T1] handle_bug+0x3e/0x70
[ 22.837969][ T1] exc_invalid_op+0x1a/0x50
[ 22.842546][ T1] asm_exc_invalid_op+0x1a/0x20
[ 22.847390][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 22.853763][ T1] Code: b2 00 00 00 e8 a7 9b f5 fc 5b 5d c3 cc cc cc cc e8 9b 9b f5 fc c6 05 78 1e d2 0a 01 90 48 c7 c7 60 da fd 8b e8 17 61 b8 fc 90 <0f> 0b 90 90 eb d9 e8 7b 9b f5 fc c6 05 55 1e d2 0a 01 90 48 c7 c7
[ 22.874384][ T1] RSP: 0000:ffffc90000067668 EFLAGS: 00010246
[ 22.880535][ T1] RAX: 033873f32e959400 RBX: ffff8880324819fc RCX: ffff888014fc8000
[ 22.888976][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 22.898233][ T1] RBP: 0000000000000004 R08: ffffffff8157df32 R09: fffffbfff1bf9660
[ 22.906475][ T1] R10: dffffc0000000000 R11: fffffbfff1bf9660 R12: ffffea0001004000
[ 22.914518][ T1] R13: 0000000000000000 R14: 0000000000000000 R15: ffffea0001004008
[ 22.923156][ T1] ? __warn_printk+0x292/0x360
[ 22.927943][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 22.933793][ T1] free_unref_page_prepare+0x95d/0xa80
[ 22.939366][ T1] free_unref_page+0x37/0x3f0
[ 22.944052][ T1] free_contig_range+0x9e/0x160
[ 22.949130][ T1] destroy_args+0x8a/0x890
[ 22.953659][ T1] debug_vm_pgtable+0x4be/0x550
[ 22.958647][ T1] ? __pfx_debug_vm_pgtable+0x10/0x10
[ 22.964417][ T1] ? __pfx_add_device_randomness+0x10/0x10
[ 22.970326][ T1] ? __pfx_debug_vm_pgtable+0x10/0x10
[ 22.975903][ T1] do_one_initcall+0x238/0x830
[ 22.981102][ T1] ? __pfx_debug_vm_pgtable+0x10/0x10
[ 22.987110][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 22.994429][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 22.999923][ T1] ? __pfx_parse_args+0x10/0x10
[ 23.005032][ T1] ? do_initcalls+0x1c/0x80
[ 23.010320][ T1] ? rcu_is_watching+0x15/0xb0
[ 23.015546][ T1] do_initcall_level+0x157/0x210
[ 23.020786][ T1] do_initcalls+0x3f/0x80
[ 23.025244][ T1] kernel_init_freeable+0x435/0x5d0
[ 23.030660][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 23.036955][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 23.044099][ T1] ? __pfx_kernel_init+0x10/0x10
[ 23.049265][ T1] ? rcu_is_watching+0x15/0xb0
[ 23.054394][ T1] ? __pfx_kernel_init+0x10/0x10
[ 23.059490][ T1] kernel_init+0x1d/0x2b0
[ 23.063815][ T1] ret_from_fork+0x4b/0x80
[ 23.068382][ T1] ? __pfx_kernel_init+0x10/0x10
[ 23.073539][ T1] ret_from_fork_asm+0x1a/0x30
[ 23.078377][ T1] </TASK>
[ 23.082209][ T1] Kernel Offset: disabled
[ 23.086616][ T1] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=<nil>)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.21.4'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build3765643222=/tmp/go-build -gno-record-gcc-switches'
git status (err=<nil>)
HEAD detached at d615901c7
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/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/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/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=d615901c739a765329b688494cee2f8e1b5037cb -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240314-145638'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=d615901c739a765329b688494cee2f8e1b5037cb -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240314-145638'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=d615901c739a765329b688494cee2f8e1b5037cb -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240314-145638'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress
mkdir -p ./bin/linux_amd64
gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"d615901c739a765329b688494cee2f8e1b5037cb\"
Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=176687b9180000
Tested on:
commit: 277100b3 Merge tag 'block-6.9-20240315' of git://git.k..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
kernel config: https://syzkaller.appspot.com/x/.config?x=fe0919aedd4b3fc3
dashboard link: https://syzkaller.appspot.com/bug?extid=28c1a5a5b041a754b947
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=13e5efb6180000