On Mon, 2012-08-27 at 11:34 +0000, Stanley wrote: > Hi, > > I am trying to porting LIO (v4.1.0-rc2) on Linux kernel 2.6.39. > Everything seems okay, except: > > when the # of portals >= 3, a crash occurs during a network interface > shutdown. You're going to have to be more specific as to what triggers this bug. Can you provide the exact sequences of events during shutdown to reproduce..? Also, I assume your not using the official userspace code either, right..? Can you reproduce during /etc/init.d/target stop..? --nab > > Below is the crash dump. Could anyone help me to find out the root cause? > > [227264.048510] Unable to handle kernel paging request at virtual address > 0010008c > [227264.057288] pgd = c0004000 > [227264.060840] [0010008c] *pgd=00000000 > [227264.065996] Internal error: Oops: 17 [#1] PREEMPT SMP > [227264.072534] last sysfs file: /sys/devices/platform/sdhci- > tegra.2/mmc_host/mmc1/mmc1:0001/mmc1:0001:2/net/wlan0/statistics/rx_packets > [227264.085920] Modules linked in: iscsi_target_mod target_core_iblock > target_core_file target_core_pscsi target_core_mod configfs usbip_host(C) > usbip_core(C) bcmdhd > [227264.109192] CPU: 0 Tainted: G C (2.6.39.4-00227-g2b84765 #8) > [227264.117533] PC is at __raw_spin_lock_irqsave+0x2c/0x98 > [227264.123558] LR is at __raw_spin_lock_bh+0x8/0x18 > [227264.129706] pc : [<c056069c>] lr : [<c056084c>] psr: 000000d3 > [227264.129752] sp : ec9dbdf0 ip : ec35d12c fp : 00000000 > [227264.143572] r10: 000ffe68 r9 : 00000001 r8 : ef9fb0b4 > [227264.149663] r7 : ec35d000 r6 : 00000001 r5 : 0010008c r4 : ec9da000 > [227264.157682] r3 : 00000202 r2 : 00000201 r1 : 00000002 r0 : 00000053 > [227264.165081] Flags: nzcv IRQs off FIQs off Mode SVC_32 ISA ARM Segment > kernel > [227264.174068] Control: 10c5387d Table: aee7804a DAC: 00000015 > [227264.180664] > [227265.295680] [<c056069c>] (__raw_spin_lock_irqsave+0x2c/0x98) from > [<c056084c>] (__raw_spin_lock_bh+0x8/0x18) > [227265.307553] [<c056084c>] (__raw_spin_lock_bh+0x8/0x18) from [<bf0dd358>] > (iscsit_inc_conn_usage_count+0x14/0x2c [iscsi_target_mod]) > [227265.321634] [<bf0dd358>] (iscsit_inc_conn_usage_count+0x14/0x2c > [iscsi_target_mod]) from [<bf0dec54>] (iscsit_stop_session+0x64/0x130 > [iscsi_target_mod]) > [227265.337500] [<bf0dec54>] (iscsit_stop_session+0x64/0x130 [iscsi_target_mod]) > from [<bf0d94ec>] (iscsi_check_for_session_reinstatement+0x1c0/0x1fc > [iscsi_target_mod]) > [227265.354399] [<bf0d94ec>] (iscsi_check_for_session_reinstatement+0x1c0/0x1fc > [iscsi_target_mod]) from [<bf0d9f88>] > (iscsi_target_start_negotiation+0x4b8/0x718 [iscsi_target_mod]) > [227265.372977] [<bf0d9f88>] (iscsi_target_start_negotiation+0x4b8/0x718 > [iscsi_target_mod]) from [<bf0d8c10>] (__iscsi_target_login_thread+0xb44/0x1228 > [iscsi_target_mod]) > [227265.390105] [<bf0d8c10>] (__iscsi_target_login_thread+0xb44/0x1228 > [iscsi_target_mod]) from [<bf0d930c>] (iscsi_target_login_thread+0x18/0x38 > [iscsi_target_mod]) > [227265.406407] [<bf0d930c>] (iscsi_target_login_thread+0x18/0x38 > [iscsi_target_mod]) from [<c00a8a00>] (kthread+0x80/0x88) > [227265.418794] [<c00a8a00>] (kthread+0x80/0x88) from [<c004aff4>] > (kernel_thread_exit+0x0/0x8) > [227265.428692] Code: e2833001 e5843004 e10f0000 f10c0080 (e1953f9f) > [227265.436860] ---[ end trace e9cc0639a5fcb27f ]--- > > > > -- > To unsubscribe from this list: send the line "unsubscribe target-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
