Hello community, here is the log from the commit of package makedumpfile for openSUSE:Leap:15.2 checked in at 2020-06-08 13:44:31 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Comparing /work/SRC/openSUSE:Leap:15.2/makedumpfile (Old) and /work/SRC/openSUSE:Leap:15.2/.makedumpfile.new.3606 (New) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Package is "makedumpfile" Mon Jun 8 13:44:31 2020 rev:51 rq:811969 version:1.6.7 Changes: -------- --- /work/SRC/openSUSE:Leap:15.2/makedumpfile/makedumpfile.changes 2020-04-14 14:20:24.361248735 +0200 +++ /work/SRC/openSUSE:Leap:15.2/.makedumpfile.new.3606/makedumpfile.changes 2020-06-08 13:44:33.087057431 +0200 @@ -1,0 +2,6 @@ +Thu Jun 4 09:57:15 UTC 2020 - Petr Tesařík <[email protected]> + +- makedumpfile-sadump-Fix-failure-of-reading.patch: sadump: Fix + failure of reading __per_cpu_load memory (bsc#1168798). + +------------------------------------------------------------------- New: ---- makedumpfile-sadump-Fix-failure-of-reading.patch ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Other differences: ------------------ ++++++ makedumpfile.spec ++++++ --- /var/tmp/diff_new_pack.D23TC5/_old 2020-06-08 13:44:33.467058394 +0200 +++ /var/tmp/diff_new_pack.D23TC5/_new 2020-06-08 13:44:33.467058394 +0200 @@ -45,6 +45,7 @@ Patch3: %{name}-PN_XNUM.patch Patch4: %{name}-arm64-Align-PMD_SECTION_MASK-with-PHYS_MASK.patch Patch5: %{name}-Fix-cd_header-offset-overflow-with-large-pfn.patch +Patch6: %{name}-sadump-Fix-failure-of-reading.patch BuildRequires: libdw-devel BuildRequires: libelf-devel BuildRequires: libeppic-devel ++++++ makedumpfile-sadump-Fix-failure-of-reading.patch ++++++ From: "[email protected]" <[email protected]> Date: Thu, 21 May 2020 07:15:19 +0000 Subject: sadump: Fix failure of reading __per_cpu_load memory References: bsc#1168798 Upstream: merged Git-commit: c9e078531efaffbe6f780221d40bdac21a84855b Creating vmcore from sadump by makedumpfile fails with the following error messages since kernel-4.19 with PTI (Page Table Isolation) enabled: __vtop4_x86_64: Can't get a valid pte. readmem: Can't convert a virtual address(ffffffffb2986000) to physical address. readmem: type_addr: 0, addr:ffffffffb2986000, size:8 per_cpu_init: Can't read __per_cpu_load memory. This is caused by the following patch: https://github.com/torvalds/linux/commit/c40a56a7818cfe735fc93a69e1875f8bba834483 The above patch clears _PAGE_PRESENT bit of __per_cpu_load memory, so __vtop4_x86_64 fails to convert the virtual address of the __per_cpu_load. To fix this issue, this patch changes sanity check of per_cpu_ptr() to use address of the __per_cpu_load instead of data of the memory. Signed-off-by: Kazuya Saito <[email protected]> Signed-off-by: Kiyotaka Nakamura <[email protected]> --- sadump_info.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sadump_info.c b/sadump_info.c index 46867ce..72a077b 100644 --- a/sadump_info.c +++ b/sadump_info.c @@ -1732,11 +1732,11 @@ per_cpu_init(void) return FALSE; } - if (!readmem(VADDR, SYMBOL(__per_cpu_load), &si->__per_cpu_load, - sizeof(unsigned long))) { - ERRMSG("Can't read __per_cpu_load memory.\n"); + if (SYMBOL(__per_cpu_load) == NOT_FOUND_SYMBOL) { + ERRMSG("Can't find __per_cpu_load symbol.\n"); return FALSE; } + si->__per_cpu_load = SYMBOL(__per_cpu_load); DEBUG_MSG("sadump: __per_cpu_load: %#lx\n", si->__per_cpu_load); DEBUG_MSG("sadump: __per_cpu_offset: LENGTH: %ld\n", -- 2.26.2
