On Fri, Apr 30, 2021 at 8:37 PM Pavel Begunkov <asml.silence@xxxxxxxxx> wrote: > > On 4/30/21 4:02 PM, Palash Oswal wrote: > > On Fri, Apr 30, 2021 at 8:03 PM Pavel Begunkov <asml.silence@xxxxxxxxx> wrote: > >> > >> On 4/30/21 3:21 PM, Palash Oswal wrote: > >>> On Thursday, March 18, 2021 at 9:40:21 PM UTC+5:30 syzbot wrote: > >>>> > >>>> Hello, > >>>> > >>>> syzbot found the following issue on: > >>>> > >>>> HEAD commit: 0d7588ab riscv: process: Fix no prototype for arch_dup_tas.. > >>>> git tree: git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes > >>>> console output: https://syzkaller.appspot.com/x/log.txt?x=12dde5aed00000 > >>>> kernel config: https://syzkaller.appspot.com/x/.config?x=81c0b708b31626cc > >>>> dashboard link: https://syzkaller.appspot.com/bug?extid=11bf59db879676f59e52 > >>>> userspace arch: riscv64 > >>>> CC: [asml.s...@xxxxxxxxx ax...@xxxxxxxxx io-u...@xxxxxxxxxxxxxxx linux-...@xxxxxxxxxxxxxxx] > >>>> > >>>> Unfortunately, I don't have any reproducer for this issue yet. > >> > >> There was so many fixes in 5.12 after this revision, including sqpoll > >> cancellation related... Can you try something more up-to-date? Like > >> released 5.12 or for-next > >> > > > > The reproducer works for 5.12. > > Ok, any chance you have syz repro as well? it's easier to read > > > Syzkaller reproducer: # {Threaded:false Collide:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: Fault:false FaultCall:-1 FaultNth:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false UseTmpDir:false HandleSegv:false Repro:false Trace:false} r0 = syz_io_uring_setup(0x7987, &(0x7f0000000200)={0x0, 0x0, 0x2}, &(0x7f0000400000/0xc00000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f00000000c0)=<r1=>0x0, &(0x7f00000001c0)=<r2=>0x0) syz_io_uring_submit(r1, r2, &(0x7f0000000180)=@IORING_OP_TIMEOUT={0xb, 0x1, 0x0, 0x0, 0x4, &(0x7f0000000140)={0x77359400}}, 0x1) syz_io_uring_setup(0x4bf1, &(0x7f0000000540)={0x0, 0x0, 0x36, 0x0, 0x0, 0x0, r0}, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ffc000/0x1000)=nil, 0x0, 0x0)
