Hi,
Please find the test scenarios which I have tried.
Test 1:
Running system Kernel version (tag/commit) : v5.4.210 Kernel source code checkout : v5.4.210 test_align test case execution status : Failure
Test 2:
Running system Kernel version (tag/commit) : v5.4.210 Kernel source code checkout : v5.4.209 test_align test case execution status : Failure
Test 3:
Running system Kernel version (tag/commit) : v5.4.209 Kernel source code checkout : v5.4.209 test_align test case execution status : Success
Test 4:
Running system Kernel version (tag/commit) : ACPI: APEI: Better fix to avoid spamming the console with old error logs ( Kernel compiled at this commit and system is booted with this change) Kernel source code checkout : v5.4.210 but reverted selftests/bpf: Fix test_align verifier log patterns and selftests/bpf: Fix "dubious pointer arithmetic" test. If I revert only the Fix "dubious pointer arithmetic" test, the testcase still fails. test_align test case execution status : Success
Test 5:
Running system Kernel version (tag/commit) : v5.4.210 but reverted commit (bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds() ) Kernel source code checkout : v5.4.210 but reverted selftests/bpf: Fix test_align verifier log patterns and selftests/bpf: Fix "dubious pointer arithmetic" test. test_align test case execution status : Success
Test 6 :
Running system Kernel version (tag/commit) : bpf: Test_verifier, #70 error message updates for 32-bit right shift( Kernel compiled at this commit and system is booted with this change) Kernel source code checkout : v5.4.209 or v5.4.210 test_align test case execution status : Failure
Thanks, Rajesh Dasari.
On Sat, Aug 20, 2022 at 10:00 AM Greg KH gregkh@linuxfoundation.org wrote:
On Fri, Aug 19, 2022 at 07:20:11PM +0300, RAJESH DASARI wrote:
Hi ,
I did some more tests , Please find the observation below.
step 1: On v5.4.210 kernel , I reverted only commit bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds() 7c1134c7da997523e2834dd516e2ddc51920699a , compiled the kernel and booted the system with the new kernel. step 2: On system with newly compiled kernel , I clone the v54.4.210 source code and reverted commit selftests/bpf: Fix test_align verifier log patterns and selftests/bpf: Fix "dubious pointer arithmetic" test , then ran the selftests, test_align test cases execution was successful. step 3: If i revert only selftests/bpf: Fix "dubious pointer arithmetic" test , test cases are still failing.
Please find the attached PDF for the other scenarios which I have executed.
For obvious reasons, we can't read random .pdf files sent to us. Please put it all in text.
thanks,
greg k-h