Hi,

On (24/09/22 22:23), Venkat Rao Bagalkote wrote:

Greetings!!!

I am observing Kernel OOPs on PowerPC system, while running LTP Test case.

[11472.962838] BUG: Unable to handle kernel data access on read at
0xc00c020000013d88
[11472.962846] Faulting instruction address: 0xc00000000055e2c0

[..]

[11472.963005] NIP [c00000000055e2c0] kfree+0x60/0x468
[11472.963013] LR [c008000004e02838] zram_destroy_comps+0x5c/0xa4 [zram]
[11472.963020] Call Trace:
[11472.963023] [c0000005da817b30] [c00000051f580440] 0xc00000051f580440
(unreliable)
[11472.963028] [c0000005da817ba0] [c008000004e02838]
zram_destroy_comps+0x5c/0xa4 [zram]
[11472.963034] [c0000005da817bd0] [c008000004e02d24]
zram_reset_device+0x178/0x250 [zram]
[11472.963040] [c0000005da817c20] [c008000004e031e0] reset_store+0xd0/0x174
[zram]
[11472.963046] [c0000005da817c80] [c000000000a85874]
dev_attr_store+0x34/0x50
[11472.963052] [c0000005da817ca0] [c00000000070e7a4]
sysfs_kf_write+0x64/0x78
[11472.963060] [c0000005da817cc0] [c00000000070d2a8]
kernfs_fop_write_iter+0x1b0/0x290
[11472.963066] [c0000005da817d10] [c000000000604868] vfs_write+0x38c/0x488
[11472.963071] [c0000005da817dc0] [c000000000604c98] ksys_write+0x84/0x140

Can you post the script that you run?