| Commit message (Collapse) | Author | Age | Files | Lines |
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No extra changes, just a newer Docker container to minimize noise in the
following commits.
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Disable rust by default for all instance, only enabling it where it's specified.
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Use v6.18-rc1 and the latest linux-next tag.
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It seems incredibly difficult to clean up the side effects of this
kernel functionality.
Keep it enabled only on a new config dedicated specifically for the
snapshot-based instance.
Closes #5956.
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Use v6.16-rc1 and the latest linux-next tag.
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Enable RUST as well as other Rust-related configs.
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Use the latest linux-next and torvalds releases.
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Use the latest linux-next and the latest torvalds release.
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Remove the deprecated options.
Replace old "linux-next" conditions with the version numbers.
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The zero values makes the kernel use the RCU_CPU_STALL_TIMEOUT value,
which is already set to a big enough value.
Context: see the recent LKML discussion at
https://lore.kernel.org/all/6723aa4d.050a0220.35b515.0161.GAE@google.com/T/
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Btrfs needs higher values to avoid false positives:
https://lore.kernel.org/all/20240821201338.GA2109582@perftesting/
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Regenerate the configs using the latest mainline, linux-next and stable
versions.
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To enable new USB drivers from the distro configs added in the last patch.
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CONFIG_SECURITY_TOMOYO produces a large amount of coverage entries for each
ioctl call. For normal instances, this might not be a problem, as they
call only a single ioctl for each syzkaller syscall.
However, the syz_usb_connect pseudo-syscall calls a large number of ioctls.
As a result, the KCOV coverage buffer for this syscall might overflow due
to the tomoyo-produced entries.
For example, with tomoyo, the first syscall of the vusb_ath9k runtest
produces ~140k KCOV entries (with [1] applied), which is not far from the
current 256k limit of KCOV entries per syscall.
With tomoyo disabled, the number of entries falls to ~30k.
Drop the security modules–related bits from the USB instance: I don't think
they are useful for that instance anyway.
[1] https://lore.kernel.org/all/eaf54b8634970b73552dcd38bf9be6ef55238c10.1718092070.git.dvyukov@google.com/
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It's not the default for most kernels, so it makes sense to test it more.
E.g. for KCSAN, KMSAN we have only 1 instance, makes sense to test LRU_GEN.
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Regenerate the configs using the latest RC and the latest linux-next
tag.
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Regenerate configs using latest Linux release candidate and linux-next.
Enable more bcachefs configs.
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Regenerate the configs using the latest Linux revisions.
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Use latest Linux mainline and -next versions.
Disable config options that were dropped.
Stop disabling PINCTRL for arm64_emu -- it's too tricky to ensure it's
not enabled + it's only possible to test it on qemu anyway.
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1) Migration to a new Docker image changed toolchain versions.
2) Regenerate cuttlefish configs that were previously omitted.
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This will let users boot directly from the vmlinux file.
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Update mainline tag and linux-next version.
Notable changes:
- SLAB is being deprecated. To still be able to test it we need
to set SLAB_DEPRECATED.
Due to SLAB deprecation, the kcsan and leak instances are switched to
SLUB to avoid tripping over issues due to SLAB not being supported
properly anymore.
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Update the configs to the latest Linux versions: v6.2-rc5 and
next-20230124.
Enable CONFIG_NMI_CHECK_CPU and rcupdate.rcu_cpu_stall_cputime.
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Enable some new configs that are reachable in VMs
and some new debugging configs.
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Update linux upstream configs to the latest mainline/linux-next tags.
- RANDOM_TRUST_CPU was removed (defaults to y)
- RANDOM_TRUST_BOOTLOADER was removed (defaults to y)
- X86_SGX now requires X86_X2APIC
- DRM_VMWGFX_FBCON was removed
- ANDROID was removed
- NFT_OBJREF was removed
- CAN_SLCAN now requires new CAN_NETLINK
- CRYPTO_BLAKE2S was split into CRYPTO_BLAKE2S_X86 and CRYPTO_BLAKE2S_ARM
- DEBUG_VM_VMACACHE was removed
- CONTEXT_TRACKING_FORCE was removed
- DRM_DP_AUX_CHARDEV now requires DRM_I915 (or some other DRM driver)
- CRYPTO_SM4 was split into x86_64 amd arm64 configs
- ARM_CRYPTO was removed
- BINFMT_SHARED_FLAT was removed
Also update all configs that were marked as linux-next.
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They are actually enabled now but merely because they are inherited from def configs.
Enable them explicitly.
But coredump_filter=0xffff cmd line argument is useful,
it will allow to test more parts of the core dumping functionality.
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Also, factor emulation-dependent consts into a separate file.
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We are still seeing some of:
BUG: MAX_LOCKDEP_CHAINS too low!
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
BUG: MAX_LOCKDEP_ENTRIES too low!
Bump LOCKDEP consts by 1.
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1. Bump KMSAN version to v5.18-rc4
Also switch to using clang-kmsan provided by syz-env.
2. Bump Linux version to v5.18
3. Bump linux-next version to next-20220601
Also enable DEBUG_NET for linux-next
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Along with small changes due to changed Kconfig variables.
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Randomly changing MSRs can have unpredictable results.
We tried to protect from writes on descriptions level,
but it does not work well, the fuzzer has figured out:
03:37:28 executing program 3:
syz_open_dev$MSR(&(0x7f0000000040), 0x0, 0x0)
r0 = syz_open_procfs(0x0, &(0x7f0000000180)='fd/3\x00')
pwritev(r0, ...)
Fortunately there is a command line argument that disables all writes.
Use it instead.
Note: older kernels will need:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a7e1f67ed29f
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=02a16aa13574
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As asked by Hillf here:
https://lore.kernel.org/all/20220419134616.GE4285@paulmck-ThinkPad-P17-Gen-1/
This config can provide more precise diagnostic for some bugs.
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Our Clang+KASAN instance is breaking due to CONFIG_WERROR being turned
on in x86_64 defconfig [1], which in turn is used to generate our
baseline configs, and therefore has accidentally been enabled in our
syzbot configs as well.
This issue has been discussed in great detail when CONFIG_WERROR was
first introduced, with the conclusion that it is the wrong default for
runtime-test focused bots [2].
Therefore, disable CONFIG_WERROR for syzbot, to not have the odd
compiler warning interrupt precious fuzzing time.
[1] https://lore.kernel.org/all/000000000000008dae05dbfebd85@google.com/
[2] https://git.kernel.org/torvalds/c/b339ec9c229aaf399296
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update linux to v5.18-rc1
fix dependency update errors
update configs
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Move CONFIG_AID_FOR_SYZBOT to verbatim since it has for some reason
disappeared from the linux-next tree.
Add CONFIG_RCU_EXP_CPU_STALL_TIMEOUT and set it to the maximum value.
Otherwise it overwhelms syzbot with `INFO: rcu_preempt detected
expedited stalls on CPUs/tasks` crashes.
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Update mainline and linux-next revisions to the latest tags
and fix configs that broke.
NF_FLOW_TABLE_IPV4/6 were removed in:
commit c42ba4290b2147aa033d17f22151494515655d77
netfilter: flowtable: remove ipv4/ipv6 modules
CONFIG_DAX_DRIVER was removed in:
commit afd586f0d06ce3d81b7c474499630fec88833828
dax: remove CONFIG_DAX_DRIVER
BLK_DEV_CRYPTOLOOP was removed in:
commit 47e9624616c80c9879feda536c48c6a3a0ed9835
block: remove support for cryptoloop and the xor transfer
NFT_COUNTER was removed in:
commit 023223dfbfb34fcc9b7dd41e21fbf9a5d5237989
netfilter: nf_tables: make counter support built-in
ICST was renamed to CLK_ICST in:
commit 323fd5955f844d1b6acf1a1af488da460f657ff2
clk: versatile: Rename ICST to CLK_ICST
APPARMOR_INTROSPECT_POLICY was added as requirement for other configs
we enabled in:
commit abfb9c0725f274c75ca2a51684c2dd842a8dc254
apparmor: make export of raw binary profile to userspace optional
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High values of CONFIG_SECURITY_TOMOYO_MAX_ACCEPT_ENTRY cause
significant slowdown (see issue #2892). Reduce the value.
Fixes #2892
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New debugging configs in net-next.
Eric asks to enable them.
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make configs uses host compilers.
This produces constant diffs in the generated configs related to different compiler versions.
Suggest to run make configs under syz-env and check-in configs produced this way.
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5.15 was released, update a few TODOs that were dependent on 5.15 being
properly released.
Re-generate all configs.
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Also, create only 2 binder devices at binderfs creation - we don't need
32 devices anymore, as a separate binderfs instance is now created per
each syz-executor.
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