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| author | Qian Cai <cai@lca.pw> | 2020-10-14 14:28:11 -0400 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-10-15 13:42:49 +1100 |
| commit | ffd0b25ca049a477cb757e5bcf2d5e1664d12e5d (patch) | |
| tree | 850fb891e06410163f4ac493ec841c6646d92478 /arch/arm64/include/asm/hwcap.h | |
| parent | 996f9e0f93f16211945c8d5f18f296a88cb32f91 (diff) | |
| download | linux-ffd0b25ca049a477cb757e5bcf2d5e1664d12e5d.tar.gz | |
Revert "powerpc/pci: unmap legacy INTx interrupts when a PHB is removed"
This reverts commit 3a3181e16fbde752007759f8759d25e0ff1fc425 which causes memory corruptions on POWER9 powernv. eg: pci_bus 0035:08: busn_res: [bus 08-0c] is released ============================================================================= BUG kmalloc-16 (Tainted: G W O ): Object already free ----------------------------------------------------------------------------- Disabling lock debugging due to kernel taint INFO: Allocated in pcibios_scan_phb+0x104/0x3e0 age=1960714 cpu=4 pid=1 __slab_alloc+0xa4/0xf0 __kmalloc+0x294/0x330 pcibios_scan_phb+0x104/0x3e0 pcibios_init+0x84/0x124 do_one_initcall+0xac/0x528 kernel_init_freeable+0x35c/0x3fc kernel_init+0x24/0x148 ret_from_kernel_thread+0x5c/0x80 INFO: Freed in pcibios_remove_bus+0x70/0x90 age=0 cpu=16 pid=1717146 kfree+0x49c/0x510 pcibios_remove_bus+0x70/0x90 pci_remove_bus+0xe4/0x110 pci_remove_bus_device+0x74/0x170 pci_remove_bus_device+0x4c/0x170 pci_stop_and_remove_bus_device_locked+0x34/0x50 remove_store+0xc0/0xe0 dev_attr_store+0x30/0x50 sysfs_kf_write+0x68/0xb0 kernfs_fop_write+0x114/0x260 vfs_write+0xe4/0x260 ksys_write+0x74/0x130 system_call_exception+0xf8/0x1d0 system_call_common+0xe8/0x218 INFO: Slab 0x0000000099caaf22 objects=178 used=174 fp=0x00000000006a64b0 flags=0x7fff8000000201 INFO: Object 0x00000000f360132d @offset=30192 fp=0x0000000000000000 Signed-off-by: Qian Cai <cai@lca.pw> Acked-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201014182811.12027-1-cai@lca.pw
Diffstat (limited to 'arch/arm64/include/asm/hwcap.h')
0 files changed, 0 insertions, 0 deletions