[Kernel-packages] [Bug 1663400] Re: [SRU] kexec: Increase the upper limit for RAM segments

2017-02-10 Thread dann frazier 
** Also affects: kexec-tools (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Summary changed:

- [SRU] kexec: Increase the upper limit for RAM segments
+ [SRU] kexec: arm64: Increase the upper limit for RAM segments

** Also affects: kexec-tools (Ubuntu Yakkety)
   Importance: Undecided
   Status: New

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to kexec-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1663400

Title:
  [SRU] kexec: arm64: Increase the upper limit for RAM segments

Status in kexec-tools package in Ubuntu:
  New
Status in kexec-tools source package in Xenial:
  New
Status in kexec-tools source package in Yakkety:
  New

Bug description:
  [Impact]
  Currently kexec is unable to see all the "System RAM" recorded in /proc/iomem.

  On a newer UEFI based Qualcomm target the number of system ram regions
  retrieved from /proc/iomem  are ~40. Currently KEXEC_SEGMENT_MAX is
  set to 16, which represents the kexec segments passed to kexec_load
  syscall, like kernel image, initrd image etc. The patch increases the
  value to 64. This enables kexec to see all the "System RAM" as
  recorded in /proc/iomem.

  [Test Case]
  == System RAM reported by /proc/iomem ==
  ubuntu@ubuntu:~$ sudo cat /proc/iomem | grep "System RAM"
  0020-0020 : System RAM
  0082-0307 : System RAM
  0308-0308 : System RAM
  0309-031f : System RAM
  0320-033f : System RAM
  0341-0589 : System RAM
  058a-058a : System RAM
  058b-058b : System RAM
  058c-0597 : System RAM
  0598-05987fff : System RAM
  05988000-0598bfff : System RAM
  0598c000-05a0 : System RAM
  05a1-05aa : System RAM
  05ab-05ca0fff : System RAM
  05ca1000-08ca : System RAM
  08cb-08cf : System RAM
  08d0-08ed : System RAM
  08ee-08ee0fff : System RAM
  08ee1000-08ee3fff : System RAM
  08ee4000-08ee : System RAM
  08ef-092a : System RAM
  092b-092d : System RAM
  092e-09422fff : System RAM
  09423000-0949 : System RAM
  094a-0957 : System RAM
  0958-0958cfff : System RAM
  0958d000-098c : System RAM
  098d-098d0fff : System RAM
  098d1000-098dbfff : System RAM
  098dc000-0e8b : System RAM
  0e8c-0e8e : System RAM
  0e8f-0fff : System RAM
  1080-17fe : System RAM
  1c02-1c7f : System RAM
  1c80-1c80 : System RAM
  1c81-7efb : System RAM
  7efc-7efd : System RAM
  7efe-7efe : System RAM
  7eff-7eff : System RAM
  7f00-17 : System RAM
  ubuntu@ubuntu:~$

  == BEFORE PATCH: System RAM reported by kexec ==
  ubuntu@ubuntu:~$ sudo kexec -d -l /boot/vmlinuz-4.7.0-2-generic --reuse-cmd 
--initrd=/boot/initrd.img-4.7.0-2-generic | grep "System RAM"
  get_memory_ranges_iomem_cb: 0020 - 0020 : System RAM
  get_memory_ranges_iomem_cb: 0082 - 0307 : System RAM
  get_memory_ranges_iomem_cb: 0308 - 0308 : System RAM
  get_memory_ranges_iomem_cb: 0309 - 031f : System RAM
  get_memory_ranges_iomem_cb: 0320 - 033f : System RAM
  get_memory_ranges_iomem_cb: 0341 - 0589 : System RAM
  get_memory_ranges_iomem_cb: 058a - 058a : System RAM
  get_memory_ranges_iomem_cb: 058b - 058b : System RAM
  get_memory_ranges_iomem_cb: 058c - 0597 : System RAM
  get_memory_ranges_iomem_cb: 0598 - 05987fff : System RAM
  get_memory_ranges_iomem_cb: 05988000 - 0598bfff : System RAM
  get_memory_ranges_iomem_cb: 0598c000 - 05a0 : System RAM
  get_memory_ranges_iomem_cb: 05a1 - 05aa : System RAM
  get_memory_ranges_iomem_cb: 05ab - 05ca0fff : System RAM
  get_memory_ranges_iomem_cb: 05ca1000 - 08ca : System RAM
  get_memory_ranges_iomem_cb: 08cb - 08cf : System RAM

  ==AFTER PATCH: System RAM reported by kexec ==
  ubuntu@ubuntu:~$ sudo kexec -d -l /boot/vmlinuz-4.7.0-2-generic --reuse-cmd 
--initrd=/boot/initrd.img-4.7.0-2-generic | grep "System RAM"
  get_memory_ranges_iomem_cb: 0020 - 0020 : System RAM
  get_memory_ranges_iomem_cb: 0082 - 0307 : System RAM
  get_memory_ranges_iomem_cb: 0308 - 0308 : System RAM
  get_memory_ranges_iomem_cb: 0309 - 031f : System RAM
  get_memory_ranges_iomem_cb: 0320 - 033f : System RAM
  get_memory_ranges_iomem_cb: 0341 - 0589 : System RAM
  get_memory_ranges_iomem_cb: 058a - 058a : System RAM
  get_memory_ranges_iomem_cb: 058b - 058b : System RAM
  get_memory_ranges_iomem_cb: 058c -

[Kernel-packages] [Bug 1663400] Re: [SRU] kexec: Increase the upper limit for RAM segments

2017-02-10 Thread Manoj Iyer 
[TEST with yakkety kexec-tools]

ubuntu@ubuntu:~$ sudo cat /proc/iomem  | grep "System RAM"
0020-0020 : System RAM
0082-0307 : System RAM
0308-0308 : System RAM
0309-031f : System RAM
0320-033f : System RAM
0341-0589 : System RAM
058a-058a : System RAM
058b-058b : System RAM
058c-0597 : System RAM
0598-05987fff : System RAM
05988000-0598bfff : System RAM
0598c000-05a0 : System RAM
05a1-05aa : System RAM
05ab-05ca0fff : System RAM
05ca1000-08ca : System RAM
08cb-08cf : System RAM
08d0-08ed : System RAM
08ee-08ee0fff : System RAM
08ee1000-08ee3fff : System RAM
08ee4000-08ee : System RAM
08ef-092a : System RAM
092b-092d : System RAM
092e-09422fff : System RAM
09423000-0949 : System RAM
094a-0957 : System RAM
0958-0958cfff : System RAM
0958d000-098c : System RAM
098d-098d0fff : System RAM
098d1000-098dbfff : System RAM
098dc000-0e8b : System RAM
0e8c-0e8e : System RAM
0e8f-0fff : System RAM
1080-17fe : System RAM
1c02-1c7f : System RAM
1c80-1c80 : System RAM
1c81-7efb : System RAM
7efc-7efd : System RAM
7efe-7efe : System RAM
7eff-7eff : System RAM
7f00-17 : System RAM
ubuntu@ubuntu:~$ 


ubuntu@ubuntu:~$ sudo kexec -d -l /boot/vmlinuz-4.7.0-2-generic --reuse-cmd 
--initrd=/boot/initrd.img-4.7.0-2-generic

get_memory_ranges_iomem_cb: 0020 - 0020 : System RAM
get_memory_ranges_iomem_cb: 0082 - 0307 : System RAM
get_memory_ranges_iomem_cb: 0308 - 0308 : System RAM
get_memory_ranges_iomem_cb: 0309 - 031f : System RAM
get_memory_ranges_iomem_cb: 0320 - 033f : System RAM
get_memory_ranges_iomem_cb: 0341 - 0589 : System RAM
get_memory_ranges_iomem_cb: 058a - 058a : System RAM
get_memory_ranges_iomem_cb: 058b - 058b : System RAM
get_memory_ranges_iomem_cb: 058c - 0597 : System RAM
get_memory_ranges_iomem_cb: 0598 - 05987fff : System RAM
get_memory_ranges_iomem_cb: 05988000 - 0598bfff : System RAM
get_memory_ranges_iomem_cb: 0598c000 - 05a0 : System RAM
get_memory_ranges_iomem_cb: 05a1 - 05aa : System RAM
get_memory_ranges_iomem_cb: 05ab - 05ca0fff : System RAM
get_memory_ranges_iomem_cb: 05ca1000 - 08ca : System RAM
get_memory_ranges_iomem_cb: 08cb - 08cf : System RAM
get_memory_ranges_iomem_cb: 08d0 - 08ed : System RAM
get_memory_ranges_iomem_cb: 08ee - 08ee0fff : System RAM
get_memory_ranges_iomem_cb: 08ee1000 - 08ee3fff : System RAM
get_memory_ranges_iomem_cb: 08ee4000 - 08ee : System RAM
get_memory_ranges_iomem_cb: 08ef - 092a : System RAM
get_memory_ranges_iomem_cb: 092b - 092d : System RAM
get_memory_ranges_iomem_cb: 092e - 09422fff : System RAM
get_memory_ranges_iomem_cb: 09423000 - 0949 : System RAM
get_memory_ranges_iomem_cb: 094a - 0957 : System RAM
get_memory_ranges_iomem_cb: 0958 - 0958cfff : System RAM
get_memory_ranges_iomem_cb: 0958d000 - 098c : System RAM
get_memory_ranges_iomem_cb: 098d - 098d0fff : System RAM
get_memory_ranges_iomem_cb: 098d1000 - 098dbfff : System RAM
get_memory_ranges_iomem_cb: 098dc000 - 0e8b : System RAM
get_memory_ranges_iomem_cb: 0e8c - 0e8e : System RAM
get_memory_ranges_iomem_cb: 0e8f - 0fff : System RAM
get_memory_ranges_iomem_cb: 1080 - 17fe : System RAM
get_memory_ranges_iomem_cb: 1c02 - 1c7f : System RAM
get_memory_ranges_iomem_cb: 1c80 - 1c80 : System RAM
get_memory_ranges_iomem_cb: 1c81 - 7efb : System RAM
get_memory_ranges_iomem_cb: 7efc - 7efd : System RAM
get_memory_ranges_iomem_cb: 7efe - 7efe : System RAM
get_memory_ranges_iomem_cb: 7eff - 7eff : System RAM
get_memory_ranges_iomem_cb: 7f00 - 0017 : System RAM

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to kexec-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1663400

Title:
  [SRU] kexec: Increase the upper limit for RAM segments

Status in kexec-tools package in Ubuntu:
  New

Bug description:
  [Impact]
  Currently kexec is unable to see all the "System RAM" recorded in /proc/iomem.

  On a newer UEFI based Qualcomm target the

[Kernel-packages] [Bug 1663400] Re: [SRU] kexec: Increase the upper limit for RAM segments

2017-02-10 Thread Manoj Iyer 
** Description changed:

  [Impact]
  On a newer UEFI based Qualcomm target the number of system ram regions 
retrieved from /proc/iomem  are ~40. Currently KEXEC_SEGMENT_MAX is set to 16, 
which represents the kexec segments passed to kexec_load syscall, like kernel 
image, initrd image etc. The patch increases the value to 64.
  
  [Test Case]
- NA
+ == System RAM reported by /proc/iomem ==
+ ubuntu@ubuntu:~$ sudo cat /proc/iomem | grep "System RAM"
+ 0020-0020 : System RAM
+ 0082-0307 : System RAM
+ 0308-0308 : System RAM
+ 0309-031f : System RAM
+ 0320-033f : System RAM
+ 0341-0589 : System RAM
+ 058a-058a : System RAM
+ 058b-058b : System RAM
+ 058c-0597 : System RAM
+ 0598-05987fff : System RAM
+ 05988000-0598bfff : System RAM
+ 0598c000-05a0 : System RAM
+ 05a1-05aa : System RAM
+ 05ab-05ca0fff : System RAM
+ 05ca1000-08ca : System RAM
+ 08cb-08cf : System RAM
+ 08d0-08ed : System RAM
+ 08ee-08ee0fff : System RAM
+ 08ee1000-08ee3fff : System RAM
+ 08ee4000-08ee : System RAM
+ 08ef-092a : System RAM
+ 092b-092d : System RAM
+ 092e-09422fff : System RAM
+ 09423000-0949 : System RAM
+ 094a-0957 : System RAM
+ 0958-0958cfff : System RAM
+ 0958d000-098c : System RAM
+ 098d-098d0fff : System RAM
+ 098d1000-098dbfff : System RAM
+ 098dc000-0e8b : System RAM
+ 0e8c-0e8e : System RAM
+ 0e8f-0fff : System RAM
+ 1080-17fe : System RAM
+ 1c02-1c7f : System RAM
+ 1c80-1c80 : System RAM
+ 1c81-7efb : System RAM
+ 7efc-7efd : System RAM
+ 7efe-7efe : System RAM
+ 7eff-7eff : System RAM
+ 7f00-17 : System RAM
+ ubuntu@ubuntu:~$
+ 
+ == BEFORE PATCH: System RAM reported by kexec ==
+ ubuntu@ubuntu:~$ sudo kexec -d -l /boot/vmlinuz-4.7.0-2-generic --reuse-cmd 
--initrd=/boot/initrd.img-4.7.0-2-generic | grep "System RAM"
+ get_memory_ranges_iomem_cb: 0020 - 0020 : System RAM
+ get_memory_ranges_iomem_cb: 0082 - 0307 : System RAM
+ get_memory_ranges_iomem_cb: 0308 - 0308 : System RAM
+ get_memory_ranges_iomem_cb: 0309 - 031f : System RAM
+ get_memory_ranges_iomem_cb: 0320 - 033f : System RAM
+ get_memory_ranges_iomem_cb: 0341 - 0589 : System RAM
+ get_memory_ranges_iomem_cb: 058a - 058a : System RAM
+ get_memory_ranges_iomem_cb: 058b - 058b : System RAM
+ get_memory_ranges_iomem_cb: 058c - 0597 : System RAM
+ get_memory_ranges_iomem_cb: 0598 - 05987fff : System RAM
+ get_memory_ranges_iomem_cb: 05988000 - 0598bfff : System RAM
+ get_memory_ranges_iomem_cb: 0598c000 - 05a0 : System RAM
+ get_memory_ranges_iomem_cb: 05a1 - 05aa : System RAM
+ get_memory_ranges_iomem_cb: 05ab - 05ca0fff : System RAM
+ get_memory_ranges_iomem_cb: 05ca1000 - 08ca : System RAM
+ get_memory_ranges_iomem_cb: 08cb - 08cf : System RAM
+ 
+ ==AFTER PATCH: System RAM reported by kexec ==
+ ubuntu@ubuntu:~$ sudo kexec -d -l /boot/vmlinuz-4.7.0-2-generic --reuse-cmd 
--initrd=/boot/initrd.img-4.7.0-2-generic | grep "System RAM"
+ get_memory_ranges_iomem_cb: 0020 - 0020 : System RAM
+ get_memory_ranges_iomem_cb: 0082 - 0307 : System RAM
+ get_memory_ranges_iomem_cb: 0308 - 0308 : System RAM
+ get_memory_ranges_iomem_cb: 0309 - 031f : System RAM
+ get_memory_ranges_iomem_cb: 0320 - 033f : System RAM
+ get_memory_ranges_iomem_cb: 0341 - 0589 : System RAM
+ get_memory_ranges_iomem_cb: 058a - 058a : System RAM
+ get_memory_ranges_iomem_cb: 058b - 058b : System RAM
+ get_memory_ranges_iomem_cb: 058c - 0597 : System RAM
+ get_memory_ranges_iomem_cb: 0598 - 05987fff : System RAM
+ get_memory_ranges_iomem_cb: 05988000 - 0598bfff : System RAM
+ get_memory_ranges_iomem_cb: 0598c000 - 05a0 : System RAM
+ get_memory_ranges_iomem_cb: 05a1 - 05aa : System RAM
+ get_memory_ranges_iomem_cb: 05ab - 05ca0fff : System RAM
+ get_memory_ranges_iomem_cb: 05ca1000 - 08ca : System RAM
+ get_memory_ranges_iomem_cb: 08cb - 08cf : System RAM
+ get_memory_ranges_iomem_cb: 08d0 - 08ed : System RAM
+ get_memory_ranges_iomem_cb: 08ee - 08ee0fff : System RAM
+ get_memory_ranges_iomem_cb: 08ee1000 - 08ee3fff : System RAM
+ get_memory_ranges_iomem_cb: 08ee4000 -