[Bug 1562653] Re: Ubuntu 15.10: QEMU VM hang if memory >= 1T
The issue is sloved after change cpuid[8008];
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2547,7 +2547,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index,
uint32_t count,
if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM) {
/* 64 bit processor */
/* XXX: The physical address space is limited to 42 bits in exec.c. */
-*eax = 0x3028; /* 48 bits virtual, 40 bits physical */
+*eax = 0x3029; /* 48 bits virtual, 41 bits physical */
} else {
if (env->features[FEAT_1_EDX] & CPUID_PSE36) {
*eax = 0x0024; /* 36 bits physical */
--
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https://bugs.launchpad.net/bugs/1562653
Title:
Ubuntu 15.10: QEMU VM hang if memory >= 1T
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[Bug 1562653] Re: Ubuntu 15.10: QEMU VM hang if memory >= 1T
After I changed PHYS_ADDR_MASK, qemu vm can start when memory >=1024G , but kvm vm still hang. -# define PHYS_ADDR_MASK 0xffLL +# define PHYS_ADDR_MASK 0xfffLL -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1562653 Title: Ubuntu 15.10: QEMU VM hang if memory >= 1T To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1562653/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1562653] Re: Ubuntu 15.10: QEMU VM hang if memory >= 1T
I mean vm hang when memory >= 1100G (1024G when enable ide cdrom) instead of 1.5G. If disable hpet, the vm will hang at acpi_ex_system_memory_space_handler when memory >= 1100G If disable kvm, vm is good when memory <= 1020G, but also hang when memory >= 1024G. There is no critical information in vm.log: -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1562653 Title: Ubuntu 15.10: QEMU VM hang if memory >= 1T To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1562653/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1562653] Re: Ubuntu 15.10: QEMU VM hang if memory >= 1T
I delete cdrom and IDE controller, the vm start sucessfully. But when I increate memory to 1100G, vm hang at hpet_enable when start. The panic is page_fault when execute hpet_period = hpet_readl(HPET_PERIOD); It seems that ioremap_nocache does not works correctly. hpet_virt_address = ioremap_nocache(hpet_address, HPET_MMAP_SIZE); -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to kvm in Ubuntu. https://bugs.launchpad.net/bugs/1562653 Title: Ubuntu 15.10: QEMU VM hang if memory >= 1T To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kvm/+bug/1562653/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1562653] [NEW] Ubuntu 15.10: QEMU VM hang if memory >= 1T
Public bug reported: 1. Ubuntu 15.10 x86_64 installed on HP SuperDome X with 8CPUs and 4T memory. 2. Create a VM, install Ubuntu 15.10, if memory >= 1T , VM hang when start. If memory < 1T, it is good. u1510-1 39eefe1e-4829-4843-b892-026d143f3ec7 1073741824 1073741824 16 hvm destroy restart restart /usr/bin/kvm 3. The panic stack is ... cannot show async_page_fault+0x28 ioread32_rep+0x38 ata_sff_data_xfer32+0x8a ata_pio_sector+0x93 ata_pio_sectors+0x34 ata_sff_hsm_move+0x226 RIP: kthread_data+0x10 CR2: _FFD8 4. Change the host os to Redhat 7.2 , the vm is good even memory >=3.8T. ** Affects: kvm (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to kvm in Ubuntu. https://bugs.launchpad.net/bugs/1562653 Title: Ubuntu 15.10: QEMU VM hang if memory >= 1T To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kvm/+bug/1562653/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1473282] [NEW] Redhat guest hang when iotest on qemu 1:2.2+dfsg-5expubuntu9.2
Public bug reported:
0. lsb_release -rd
Description:Ubuntu 15.04
Release:15.04
1. kvm --version , upgraded from ubuntu vivid-updates
QEMU emulator version 2.2.0 (Debian 1:2.2+dfsg-5expubuntu9.2)
2. I create a Redhat 6.6 x64 virtual machine, then do iotest by using
tiotest tool provided by phoronix. The command is 3 instances of
"tiotest -b 512k -S".
3. After about 10-20 minutes, the guest io hang with the stack:
[] ? pvclock_clocksource_read+0x50/0xd0
[] ? sync_page+0x0/0x50
[] io_schedule+0x73/0xc0
[] sync_page+0x3d/0x50
..
[] vfs_fsync_rage+0x7e/0x100
..
[] sys_write+0x51/0x90
4. I check the code pvclock_clocksource_read, maybe the src->version is
miswriten to an odd number.
do {
version = __pvclock_read_cycles(src, &ret, &flags);
} while ((src->version & 1) || version != src->version);
5. The vm xml:
r0606-65b
282b7680-09ea-4d12-b026-047800ea4629
2097152
2097152
2
hvm
destroy
restart
restart
/usr/bin/kvm
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: New
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You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu in Ubuntu.
https://bugs.launchpad.net/bugs/1473282
Title:
Redhat guest hang when iotest on qemu 1:2.2+dfsg-5expubuntu9.2
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