Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
212	2	Serial::new_sink	call site: 00002	Tap::write
1	0	EP	call site: 00000

Fuzzer calltree


         fuzz_target

[function] [call site] 00000


           Serial::new_sink

[function] [call site] 00001


             Tap::new

[function] [call site] 00002


               Tap::open_named

[function] [call site] 00003


                 build_terminated_if_name

[function] [call site] 00004


                   Tap::if_name_as_bytes

[function] [call site] 00005


                   &[u8]::len

[function] [call site] 00006


                     std::mem::size_of::<virtio_net_hdr_v1>

[function] [call site] 00007

Err

[function] [call site] 00008


                   Error::IfnameTooLong

[function] [call site] 00009


                   PvPanicDevice::event_to_string

[function] [call site] 00010


                     PvPanicDevice::event_to_string

[function] [call site] 00011


                       PvPanicDevice::event_to_string

[function] [call site] 00012


                       PvPanicDevice::event_to_string

[function] [call site] 00013


                       PvPanicDevice::event_to_string

[function] [call site] 00014


                     PvPanicDevice::event_to_string

[function] [call site] 00015


                     PvPanicDevice::event_to_string

[function] [call site] 00016


                   &[u8]::len

[function] [call site] 00017


                   copy_from_slice

[function] [call site] 00018

Ok

[function] [call site] 00019


                 libc::open

[function] [call site] 00020


                 __IncompleteArrayField::as_ptr

[function] [call site] 00021


                 unwrap_or

[function] [call site] 00022

Err

[function] [call site] 00023


                 Error::OpenTun

[function] [call site] 00024


                 IoError::last_os_error

[function] [call site] 00025


                 File::from_raw_fd

[function] [call site] 00026


                 vmm_sys_util::ioctl::ioctl_with_mut_ref

[function] [call site] 00027


                   vmm_sys_util::ioctl::ioctl_with_mut_ref

[function] [call site] 00028

Err

[function] [call site] 00029


                   Error::IoctlError

[function] [call site] 00030


                   IoError::last_os_error

[function] [call site] 00031

Ok

[function] [call site] 00032


                 net_gen::TUNGETFEATURES

[function] [call site] 00033

Err

[function] [call site] 00034


                 Error::GetFeatures

[function] [call site] 00035


                 IoError::last_os_error

[function] [call site] 00036

Err

[function] [call site] 00037


                 TxVirtio::default

[function] [call site] 00038


                   Tap::new

[function] [call site] 00039


                 as_mut

[function] [call site] 00040


                 Result::len

[function] [call site] 00041


                   std::mem::size_of::<virtio_net_hdr_v1>

[function] [call site] 00042


                 copy_from_slice

[function] [call site] 00043


                 __IncompleteArrayField::as_slice

[function] [call site] 00044


                   ::std::slice::from_raw_parts

[function] [call site] 00045


                   __IncompleteArrayField::as_ptr

[function] [call site] 00046


                 vmm_sys_util::ioctl::ioctl_with_mut_ref

[function] [call site] 00047


                 net_gen::TUNSETIFF

[function] [call site] 00048

Err

[function] [call site] 00049


                 Error::ConfigureTap

[function] [call site] 00050


                 IoError::last_os_error

[function] [call site] 00051


                 to_vec

[function] [call site] 00052


                 Result::truncate

[function] [call site] 00053


                 Result::len

[function] [call site] 00054

Ok

[function] [call site] 00055


           RateLimiterConfig::try_into

[function] [call site] 00056


             unwrap_or_default

[function] [call site] 00057


             unwrap_or_default

[function] [call site] 00058


             rate_limiter::RateLimiter::new

[function] [call site] 00059


               TokenBucket::new

[function] [call site] 00060

gcd

[function] [call site] 00061


                 Some

[function] [call site] 00062


                 Instant::now

[function] [call site] 00063


               TokenBucket::new

[function] [call site] 00064


               Tap::new

[function] [call site] 00065


                 Tap::open_named

[function] [call site] 00066


               Tap::as_raw_fd

[function] [call site] 00067


                 Tap::as_raw_fd

[function] [call site] 00068


               libc::fcntl

[function] [call site] 00069


                 libc::fcntl

[function] [call site] 00070


                 libc::fcntl

[function] [call site] 00071


               libc::fcntl

[function] [call site] 00072

Err

[function] [call site] 00073


               std::io::Error::last_os_error

[function] [call site] 00074

Ok

[function] [call site] 00075


               Tap::new

[function] [call site] 00076


                 Tap::open_named

[function] [call site] 00077


               Tap::new

[function] [call site] 00078


                 Tap::open_named

[function] [call site] 00079


             unwrap_or

[function] [call site] 00080


             unwrap_or

[function] [call site] 00081


           Tap::new

[function] [call site] 00082


             Tap::open_named

[function] [call site] 00083


           TestInterrupt::new

[function] [call site] 00084


           Tap::new

[function] [call site] 00085


             Tap::open_named

[function] [call site] 00086


           Result::unwrap

[function] [call site] 00087


           &[u8]::len

[function] [call site] 00088


           KvmVm::get_preferred_target

[function] [call site] 00089


             RateLimiterConfig::try_into

[function] [call site] 00090


               unwrap_or_default

[function] [call site] 00091


               unwrap_or_default

[function] [call site] 00092


               rate_limiter::RateLimiter::new

[function] [call site] 00093


               unwrap_or

[function] [call site] 00094


               unwrap_or

[function] [call site] 00095


             KvmVm::get_preferred_target

[function] [call site] 00096


               RateLimiterConfig::try_into

[function] [call site] 00097


               KvmVm::get_preferred_target

[function] [call site] 00098


               map_err

[function] [call site] 00099


               vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00100


               RateLimiterConfig::try_into

[function] [call site] 00101


                 unwrap_or_default

[function] [call site] 00102


                 unwrap_or_default

[function] [call site] 00103


                 rate_limiter::RateLimiter::new

[function] [call site] 00104


                 unwrap_or

[function] [call site] 00105


                 unwrap_or

[function] [call site] 00106


               RateLimiterConfig::try_into

[function] [call site] 00107

Ok

[function] [call site] 00108


             map_err

[function] [call site] 00109


             vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00110


             RateLimiterConfig::try_into

[function] [call site] 00111


             RateLimiterConfig::try_into

[function] [call site] 00112

Ok

[function] [call site] 00113


           vm::Result::unwrap_or

[function] [call site] 00114


           KvmVm::get_preferred_target

[function] [call site] 00115


           vm::Result::unwrap_or

[function] [call site] 00116


           Tap::read

[function] [call site] 00117


             read

[function] [call site] 00118

Err

[function] [call site] 00119


               Sector::new

[function] [call site] 00120


                 TxVirtio::default

[function] [call site] 00121


                   Tap::new

[function] [call site] 00122


                 KvmVm::get_preferred_target

[function] [call site] 00123


                   RateLimiterConfig::try_into

[function] [call site] 00124


                   KvmVm::get_preferred_target

[function] [call site] 00125


                   map_err

[function] [call site] 00126


                   vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00127


                   RateLimiterConfig::try_into

[function] [call site] 00128


                   RateLimiterConfig::try_into

[function] [call site] 00129

Ok

[function] [call site] 00130

Err

[function] [call site] 00131

Ok

[function] [call site] 00132


               KvmVm::get_preferred_target

[function] [call site] 00133

Err

[function] [call site] 00134


               FixedVhd::seek

[function] [call site] 00135


                 FixedVhd::seek

[function] [call site] 00136


                   FixedVhd::seek

[function] [call site] 00137

Ok

[function] [call site] 00138

Err

[function] [call site] 00139

Ok

[function] [call site] 00140

Err

[function] [call site] 00141


               SeekFrom::Start

[function] [call site] 00142


               std::io::Result::map_err

[function] [call site] 00143


               Result::read_exact

[function] [call site] 00144


               map_err

[function] [call site] 00145

Err

[function] [call site] 00146

Err

[function] [call site] 00147

Ok

[function] [call site] 00148


           KvmVm::get_preferred_target

[function] [call site] 00149


           vm::Result::unwrap_or

[function] [call site] 00150


           Tap::write

[function] [call site] 00151


             write

[function] [call site] 00152

Err

[function] [call site] 00153


               Sector::new

[function] [call site] 00154


               KvmVm::get_preferred_target

[function] [call site] 00155


                 RateLimiterConfig::try_into

[function] [call site] 00156


                 KvmVm::get_preferred_target

[function] [call site] 00157


                 map_err

[function] [call site] 00158


                 vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00159


                 RateLimiterConfig::try_into

[function] [call site] 00160


                 RateLimiterConfig::try_into

[function] [call site] 00161

Ok

[function] [call site] 00162

Err

[function] [call site] 00163


               align

[function] [call site] 00164


                 div_ceil

[function] [call site] 00165


               checked_add

[function] [call site] 00166


               ok_or

[function] [call site] 00167


               QcowFile::set_len

[function] [call site] 00168

Err

[function] [call site] 00169


                 std::io::Error::other

[function] [call site] 00170


               std::io::Result::map_err

[function] [call site] 00171


               vhdx::vhdx_bat::BatEntry

[function] [call site] 00172


               BatEntry::write_bat_entries

[function] [call site] 00173


                 Result::len

[function] [call site] 00174


                 FixedVhd::seek

[function] [call site] 00175


                 SeekFrom::Start

[function] [call site] 00176


                 size_of::<u64>

[function] [call site] 00177


                 std::io::Result::map_err

[function] [call site] 00178


                 KvmVm::get_preferred_target

[function] [call site] 00179


                   RateLimiterConfig::try_into

[function] [call site] 00180


                   KvmVm::get_preferred_target

[function] [call site] 00181


                   map_err

[function] [call site] 00182


                   vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00183


                   RateLimiterConfig::try_into

[function] [call site] 00184


                   RateLimiterConfig::try_into

[function] [call site] 00185

Ok

[function] [call site] 00186

Err

[function] [call site] 00187


                 write_u64::<LittleEndian>

[function] [call site] 00188


                 map_err

[function] [call site] 00189

Ok

[function] [call site] 00190


               Result::map_err

[function] [call site] 00191


               FixedVhd::seek

[function] [call site] 00192


               SeekFrom::Start

[function] [call site] 00193


               std::io::Result::map_err

[function] [call site] 00194


               Result::write_all

[function] [call site] 00195


               map_err

[function] [call site] 00196


               FixedVhd::seek

[function] [call site] 00197


               SeekFrom::Start

[function] [call site] 00198


               std::io::Result::map_err

[function] [call site] 00199


               Result::write_all

[function] [call site] 00200


               map_err

[function] [call site] 00201

Err

[function] [call site] 00202

Err

[function] [call site] 00203

Ok

[function] [call site] 00204


           Pl011::queue_input_bytes

[function] [call site] 00205


             MemoryRangeTable::extend

[function] [call site] 00206


               MemoryRangeTable::extend

[function] [call site] 00207


             vnet_hdr_len

[function] [call site] 00208


               std::mem::size_of::<virtio_net_hdr_v1>

[function] [call site] 00209


             Pl011::trigger_interrupt

[function] [call site] 00210


               Pl011::pl011_set_read_trigger

[function] [call site] 00211

Ok

[function] [call site] 00212


           vmm_sys_util::errno::Result::ok

[function] [call site] 00213


             Tap::new

[function] [call site] 00214